Kawasaki brute force 750 no power backfiring fix
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- เผยแพร่เมื่อ 3 ก.ค. 2024
- We tell you what might be wrong with your 650/750 brute force. No power, backfiring, won't take more than 1/2 throttle. Check this out! Please Subscribe, Share, comment and like our videos.
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Some tools we use and like found here amzn.to/3dbOQVE
Hey man I'm having issues with 04 prairie 700. It won't rev up it will idle fine. Hear Is what I have done to it so far.
New fuel pump
Put carbs off running quad
Adjusted valve's
Did compression test
Did leak down test
Tested coils
New spark plugs
I just can't get it 😪 any ideas thanks in advance.
I'll send someone $100 if you can tell me what is wrong. Let me know I can call text or email
@@darreng2639 Might be an electrical issue. Check all the wiring that deals with ignition and fuel. Sometimes coils test fine but break down under load.
My kvf 650 was backfiring through the exhaust and the carbs . I put rebuild kit in carbs , new plugs and set valve clearance. Inlet on valves had no clearance. So I set at 5 thou . Started it but no different . Reassembled the air box and it is now running great . However I don’t know which part of what I did actually solved the problem . I’ve just read somewhere that the valves on these tighten up rather than go loose and you can then lose compression . Please can you tell me if this is correct and would this have caused my backfiring issue ? Love your vids from North Wales UK .
I got a 2007 Kawasaki Brute Force! Always had trouble with the engine! Have had it in the shop 3 or 4 times since we bought it new! Going to send this video to my son in law! Maybe he can see if this will fix it! Thanks!
Awesome, glad I found you by accident. I just bought a BF 2 days ago. The more I get into it, the more I can tell it's been severely abused. It was coughing really bad, no 4x4, now I got a red light blinking. Don't know what that is. I guess the label
has worn away that tells what the lights are. Anyway, got my work cut out for me. If you get on it and, as you say, "give it the beans", it will nearly throw you off of it. Gotta love that quote! So, at least there's life in it still. Thanks bro liked, subsribed
no snow here! good tip on the fuel pump, I have heard the same thing about another fuel pump in the past.
Thanks cous.
Awesome info, thanks from Arizona
Thank you, cheers! please Subscribe.
Hey this really helped a lot, I just bought an 06 same model but it has a carburetor and same issues, now that u said that about limp mode ima check the belt first
Glad it helped you.
Very Nice! He explained it perfect!
Thanks.
Great info, I like this guy! Thanks a lot!
Thank you Blake. We try to put out good content for you guys. Appreciate the support.
cause knowing is half the battle! good job shawn
Thanks man
Great tips and info brother. Hopefully you get some sunshine and the snow goes away soon. 👍
Thanks man. Warmed up alot since last week.
Morning bro we got the snow too haha still snowing now have a great day
Thanks Brother. bound to have summer at some point.
Great videos
Very helpful thanks
Thanks for stopping in.
thanks for this information! Subscribed as Bruteforce Explorer :)
Thanks for your support. Please share this channel with others.
@@HammerHeadGarage I will absolutely mention it in one of my upcoming videos!
Thanks for the video, I would appricate the reset process for my twin 750 kawi, thanks, God bless
Belt reset is easy. Unhook the 2 pin actuator plug on the belt cover. Under the seat find your grey plug. Plug it into the black connector and then the black into the grey. Turn on the key and the belt light should flash quickly and then settle down to a normal slow blink. Let it do that for 30 seconds. Plug everything in the way you had it and start the machine. Belt light reset.
@@HammerHeadGarage thanks for taking the time to reply, God bless brother
@@colonialroofingofnorthcaro441 God bless you and yours my man.
excellent video, you can make one carburizing greetings from Mexico if you could do it thank you very much
It's in the works buddy! thanks for the comment and please hit the subscribe button and share button. thank you.
Hello! I really need your expertise. I just bought a brand new 2022 Brute Force 750.... Recently as I am still completing the break in time, the motorcycle stalled when coming to an immediate stop. Its only done it once but it almost did it again today as I rode it. The only fuel I've put its non ethanol 89 oct. Thank you very much for your time.
Looking at an 06 650 brute with same issue for $500. Wonder if that Jeep pump would do the trick? Tks for sharing.
Hey that’s an awesome vid.
On the 06 brute do they still have an electric fuel pump. Mine always seams to be lacking fuel on startup. Choke lots of turning over and sometimes I have to prime it in warm weather.
Thanks
Valves need adjusting
Great video!
I have an 2005 650 Brute (KVF650) and I'm wondering if I'm looking for the same volume of fuel after each ignition cycle?
If its fuel injection. If carbed nope different. Consult the service manual.
I am really hoping you can help point me in the right direction for my quad. It’s an 08 650 brute force and has essentially the same issue described here. It’s got good fuel flow that should be filling the carbs. The carbs looked really clean inside too when taken apart. I was riding the quad and everything was running really well until going up a hill it fell on its face and lost half power. I have not been able to find the issue and am running out of ideas to try
shaun, I've got a 2006 Brute force 750. Extremely clean well kept low mile machine.
It's having a hard time cold starting. Crank and crank and crank..finally she'll fire up. Did a complete tear down on both carbs, cleaned all the tiny side port holes on the pilot jet as well as the main jet base. Its giving me a slight backfire issue as well.
Any ideas?? Just does not want to cold start. Have you made a video on brute force carb maintenance?
Love the channel. Love the excellent informative info!
with the machine running, spray some carb cleaner around the intake boots where the carbs join and on the head side. If it dies or you notice a change in idle you have an air leak. Also is your enrichner working properly? what do the plugs say? Rich and sooty? whitish lean.
@HammerHeadGarage
I wasn't aware of an enricher.
Old plugs looked good. Just a shade on the dark side.
Can you do a carb rebuild / fuel system video?
2005 brute force 750i, carburetor. What should the fuel output be when doing this test?
Great videos! Have a 750 brute force and when I jump the fuel pump it will run. Just wondering what the cause of the pump not working. I have looked at roll over switch it seems ok. By leaving it jumped on relay plug how long would it last like that or will it just burn something up? Thanks for any information on the subject.
Its the fuel pump relay. Just replace it.
I have a 2007 brewed for 750. I have installed a new OEM belt, new plugs and air filter. Unfortunately I’m only able to get the top speed it up to 38MPH.
I contacted EPI to ask about the clutch thinking that maybe it needed some type of adjustment the Gentleman walked me through it and things seem to be OK.
No it does not act like it is slipping the RPMs are not revving to the moon it’s just does not hit hard off the bottom and lacks top in speed. When I replace the spark plugs they Had tons of carbon buildup. Any leads you might have is greatly appreciated. Thank you.
Step 1. Do a cylinder leakdown test on both cylinders. More than 12% on each there is a problem. Step 2, do a fuel flow test. You may have a clogged or bad fuel pump. Let me know when you do these things. Any codes? FI light lit on the dash.
hey hammer I am nube with atvs bought a 2009 kaw 750 brute force F1 light on and could you do a short vid on where to find the model number and vin numbers please and thanks for your time and effort shooting these videos and is there a manual you could recommend to me us
Hey Shawn, does this apply to the carbureted 2005 brute 750? I’m gonna check spark today but I can’t get it to start but I do smell fuel.
Hey hey I sure would love it if you can tell me how to reset the factory belt light ...please and thanks for the great vid
Just search trough my video's here. I did a whole video about that called "Belt light Re-set"
I've got a 02 650 kawasaki prairie that keeps throwing belts and changed clutch kits and all help please
Hello, thanks for the info! I’m looking at picking up a used quad in the next few days and I found an 08 brute force with 1600 km are they worth picking up for the right price or should I steer towards another brand? Thanks
The Brute force is a solid machine. Take some one that knows mechanics with you when go shopping.
Hey brother thanks for the great video. I just picked up a 2007 750, Doing similar things, will not rev out all the way tops out at 50km, I inspected the belt and reset the light already. It’s pretty sluggish.
Starts and idles fine. Does this fuel flow test only apply to the efi 2008+ models? or do you recommend I get right into the carbs on the carbureted models? (From your experience)
Is the gas old(more than 45 days old) if so replace. Air filter is clean? any check engine light on? Batt voltage at idle? (Should be 13.5-14.5 v dc) Take the discharge line off the fuel pump. Is lots of fuel coming out of the line (the one going to the carbs)? Is there fuel inthe bowls?
@@HammerHeadGarage
Brand new battery, air filter is clean, no trouble lights on at all. It was sitting for a year when I bought it. I siphoned the tank and put fresh gas, with some sea foam treatment. Maybe I’m answering my own question and just don’t want to dig those carbs out lol. I haven’t pulled the line to check the pump output yet, I was going to get some specs on cc’s / time before I did that. Sounds like I need to give the jets a cleaning huh?
Yes sir thanks for your yo channel , hav a heck of a time with my 2008 brute 750 fi, new wiring harness, fuel line, injectors, 3rd fuel pump,I can test the pump hear it working, it just cranks and cranks won’t pump fuel , I am stumped, had it to a dealer and they couldn’t get it either??
Give me the full rundown.
Everything is new can’t get it to pump fuel I rebuild the pump with 3 different pumps, don’t wanna but a 609$ pump watched your pump building video guess I’m gonna try that next thanks
@@reg62081 When you take the pump apart there is a little hidden screen where the fuel pressure regulator goes into the plastic body. Take a bent nail and poke a hole in that little screen. I bet that is your problem.
I’ll give it a shot thank you sir
So I just got my hands on an '08 Kawasaki teryx..I gave it a new set of plugs, new oil and oil filter along with an air filter. This one is carbed before they came out with the fuel injection. I feed it premium gas and starts takes a bit to warm up, but when it does it idles perfectly. My question is that I'll be going right along, it'll lose power and start to backfire. I shut it off wait a few minutes turn it back on and can go again, what's causing this. Also it seems to get pretty hot, do they run like that, or should I be changing the thermostat?...I've had Honda four-wheelers and worked on my own for years, but this Kawasaki has me stumped..
Hey Brad. Sounds like an ignition problem. Test the coil it may be failing when things heat up. Also just run regular gas, dont need premium.Also make sure the valves are adjusted and the spark plugs are not black (fouled).They should not run hot. Does the fan come on? if not your fan relay,motor or thermo switch is bad. Check the fuse first.
Is the pump the same on an 05
I know this is side tangent but I was wondering why my rear drive shaft on my 750 bf was moving forward and back at different times it travels maybe 1/3" .I removed the shaft to install new oil seal thats how I noticed .I pulled the shaft out and could not move the splined stud at all no play with hand pressure .Is this normal and is this why the shaft is collapsable and spring loaded
Great Video. I have a 2008 teryx carb and i just adjusted the valves, twice because i thought i screwed up. it had almost no compression before the adjustment now it has way more (not tested) and it will spit and sputter above half throttle. If i put my hand over and cover the carbs a little bit it will rev out. Any help on where to go next would be much appreciated.
When you put your hand over the carbs you are cutting out the air making it richer. If it runs better that way it's starving for fuel.
I thought that too. But there is fuel sputtering and spitting out of the carbs while this is happening. But it still may not be enough.
It ran perfect before I adjusted the valves. It was just hard starting.
@@nickf7617 float level? plugs? are they dark?
@@HammerHeadGarage i out new plugs in it. I’ll be doing a compression test today and then probably pulling the carbs and going through them. It’s just so weird because it ran great before the valve adjustment but may it’s moving way more air now.
@@nickf7617 Something is up for sure.
I have a 2008 tertiary with a carbarated brute motor. I replaced the old vacuum fuel pump with an electric one. I was told I needed less that 4psi. Does this sound correct? I am having the same issue mid throttle stutter and backfire. Any help would be great!
Yeah about 4-6psi usually. Are the valves in spec? compression test is in order I think.
What are the best plugs for 2008 brute force 750
NGK. Cr7e I think.
Great video , thank you , curious, I have a 2002 prairie 650 4x4 , carbs were full of dry gas. I ordered a kit , new o rings ect.. I cannot find accelerator pump diaphrams anywhere , I tried kawasaki but they said they dont make them , not even a part number. Any idea on replacements ? Thanks
You will need to find one that fits from another carb. suzuki often interchanges with kawi.
@@HammerHeadGarage thank you I'll give it a shot
Love the tip bro would the fuel pump recommendation be the same here in New Zealand in regards to getting it out of a different vehicle such as the wrangler? I have the 2007 kvf650 and it's doing that limiter sound... the local mechanic said the carby and motor was fine as it idles and starts ok it just won't full throttle and makes that limiter sound every time I try to full throttle driving? I tried the factory reset and it kind of worked for like half an hour but now it's doing it again...? Local mechanic said to bypass it by rewiring or cutting the wire at the computer or on the wire loom somewhere where ever that needs to be to stop it from limiting? On the flip side I will do this fuel test now though just to see if it is the fuel pump 😎
don't ever cut any of the wires on these machines. Worst thing you could do. Get a factory service manual and work out your issues one at a time slowly.
@@HammerHeadGarage thankyou for replying so quickly yep I have the factory service manual but I'm not sure if it's the right one let alone how to read it properly.. My serial is in bits and pieces and I can't make sense of it so I'm just reading through a pdf I downloaded online. When you say go through step by step what do you mean ? Are you saying not to do the fuel test with the measuring cup for 150mls like your video says ? I'm confused now 🤔
@@100prooffitnesslifestyle7 Do the fuel flow test for sure yes. Also a leakdown on both cylinders.
@@HammerHeadGarage have you got a leakdown test video for the kvf650? I've been looking around TH-cam but haven't found anything too helpful. I don't really no what to look for. Can I do this test without pulling the motor out? Also I just checked the belt which is missing parts to it... would this make the bike limiter kick in ? I kind of feel like I'm losing pressure from the cylinders now that you mention doing the cylinder test, I am losing a lot of oil too. Could I be losing pressure because of that as well? ... I haven't done the fuel test yet because it's raining here but will get on to it asap
Hey there,
Thanks for the vid, I'm new to the channel and found you as am having issues with my 09 750BF. I actually just got it back from a service attempting to get it running properly and it still back fires and barely goes above 35. My research let me to suspect a faulty ecm/ecu, I just tested the machine with the ecm unplugged and it rides exactly the same as with it in. Do you think it's worth me looking at the fuel pump or should I start looking for a new (used) ecm? I don't know of any way to repair it at all do you?
get an ecu out of a know good running machine and try it. The machine wont run without the ecu plugged in.
Thanks, I unplugged the single plugged box at the rear. After your response I just did some more digging and think it might be the ecu actuator instead. That kinda puts me back in the unknown as not sure it would run the same with that out.
Hey Shawn, I have a (new to me) 2005 Brute Force (Carbureted), that was backfiring out the tail pipe but stopped once I switched to pure gas (no ethanol). but it's still hard starting and has really low power. Thinking I need to rebuild/clean the carbs and replace the vacuum fuel pump and maybe the fuel tap/petcock valve along with a new pair of plugs. Anything else I should consider looking at for this?
Adjust the valves and do a leak down test.
I have a 2021 model and it’s giving me 300ml on 3 primes instead of 150ml is this a problem ?
Hey could you do one on a carbed brute
Hi! So as someone who has a lot of experience with the brute force, why would mine be starting perfectly and idling great, but as soon as I give it the littlest bit of gas it dies instantly? I've changed the spark plugs and replaced the entire fuel delivery system and now I'm just lost on it. I would really appreciate any ideas you could give me!
Could be a bad ecu, sounds like fuel delivery problem. Any codes? read them first.
Good afternoon. I have a kawi kvf 750 2007. It works very well. I did the maintenance yesterday, oil change, differential oil change, air filter change. When I start it there is no power and the front cylinder flips backfire and the exhaust are explosion sound. I didn't work with other parts. Before that, it worked perfectly. Please help. Thanks.
Do a cylinder leakdown test on both cylinders. Anything more than 12% leakage is no good. Engine will need to be torn down and rebuilt.
did the new fuel pump fix the problem? my '12 brute force 750i does the same thing, runs and idles well, and once you give it full throttle, there's nothing there. Already changed the fuel filter sock, it was pretty dirty.
Yes sir it sure did. There is also a filter screen where I pointed out in the videos that sometimes clogs up. Use a bent nail to poke a hole in the little screen.
Do you have an knowledge on a 2002 kawasaki prairie 650? If so I have a question. I just got one for free got it running just doesn't seem to have a lot of power. I replaced the oil and batterey and ordered carb rebuild kits so I can go thru that and see if I have anything clogged any thing else you would recommend to look into?
Do a compression and leak down test and compare the results with your service manual.
I have a question can I email you a video of how my bike is sounding I don’t think it is running right the bike was sunk with someone else on accident it did shut off on them I drained everything ram oil through it changed it like 3 times out new plugs in it. But it doesn’t sound right to me and idk what else to do I have no changed the gas yet I was guna try to run it all the way empty and then put Fresh in it but any help would be very appreciated
Got questions got 05 brute force 750 4x4 it was blowing oil out crankcase vent pipe..so he had top end rebuild with big 800 kit in itand still doing it
Can be many things. It's obviously pressuring up. Did this engine ever get a hot lunch ie overheated badly?
I don't know bought it and it was doing it so had guy check it and he said it was rings and jug so rebuild the top end got it back it run good no smoke
I have a question? I have a 2008 650 Kawasaki brute force it seems like I have no power going to my fan and no power going to my four-wheel-drive actuator but power going everywhere else would you have an idea?
start tracing wires. Likely an open circuit somewhere. Use a test light to find it.
I have a 05 700 prairie , I'm having the same problem with. I have replaced the belt and reset the belt sensor. It does run better on the bottom end, at half throttle and above it cuts out and surge's I can't get over 35/40 mph. I checked the fuel pump flow and got well over the 150 cc. I have taken the carbs completely apart and cleaned everything, no blockage found. I've adjusted the valves and still no help with performance. Any ideas would be appreciated, thanks
Do a leakdown test on it. Should be 10% or less leakage.
Have you been able to figure it out
Have a 03 prairie 360, just picked it up 2 weeks back. It had sat for 2 years so I drained fuel, did a full service. (Oil, oil filter, spark plug, new carb and new battery) got it back together ran great drive it 4 or 5 times now has a check belt light and is in limp mode. I tried to reset the light and checked inside the housing. Now the light is off but still seemed to be in limp mode and can’t get it to come out. Any suggestions? First 4 wheeler learning as I go here! Thanks
could be a couple things. Check batt voltage at idel? should be around 14vdc. Try un hooking the battery. Also check all the plugs by un plugging them and replugging them in.
Everything looks to be good, voltage is right at 14.10. All plugs been unplugged and blown out. Do the actuators on the top of the belt housing go out often? It seem to be something electrical it started and idles great but as soon as you try to give it much acceleration it putters out and falls on its face
Have a 06 cat belt warning on did the factory reset numerous times won't reset. Wiring good, switch in on position battery at 12 volts starts and will run but won't rev up much. CDI box?
Likely an ecu issue. Did you try taking the ground off the battery and then re hooking it back up?
@@HammerHeadGarage yes removed ground also tried unplugging ECU same thing.
Got question.. Got 08 brute force 750 it got oil catch can from top of valve covers front valve cover pipe when it warm up blow milk looking oil. Out it I check my oil it look new
Does it have a green ting? Prob a bad water pump mechanical seal. You need to remove the cover to drive the seal in from the inside.
If it was that would it leak oil or coolant out pipe and filter bottom water pump right
Im having a similar issue with my 2023 750 brute force with 65 miles on it… wondering if this test would still be applicable? Im not sure if I have bad gas or got some contamination in the tank somehow. Don’t take it mudding or anything like that has just been on dirty wet roads! I do wash it after every time out though so maybe there is an easy way for stuff to get in?
Appreciate it!
That machine should still be under warranty.
@@HammerHeadGarage sadly the warranty expired 3 weeks ago. Just my luck!
Hammer head I have a 2012 650 brute. I had it sitting for about a year or 2 I started working on it and I’m at the point where it will turn on and idle fine but when i give it Half throttle or more it pops in the carb and wants to die. I already took the carb out and cleaned It, i also rest the belt light and I confirmed the pump was pumping gas. I’m new to working on bikes/engines any idea on what the issue is?
A bike with old gas in it for 2 years will need the fuel system totally cleaned. Clean the carb again in an ultrasonic cleaner. the fuel turns to varnish and this is what is likely your problem.
I have a 2006 brute 650 . At idle the front carb back fires thru the carb. You pull choke it stops , or you give it more throttle it goes away. Runs like a scalded dog. I just can’t figure out what to do. I cleaned carbs and I had a shop clean them also cuz I thought I was missing something . Any thoughts ??
Do a leak down test on both cylinders and tell me the results.
Where are u located, need some work done on a brute force 750 2008
1st off thanks for the knowledgeable vidoe(s) new subscriber here. My questions are, will that fuel pump from RockAuto work for the application of a 2010 Kawasaki Teryx 750 fi? My son did the oil change on our Teryx while I was at work & put 4 quarts in when it was only supposed to be 2.7, he drove the damn thing & oil started spitting out the exhaust smoking from exhaust + the gear shifter box he turned off the T-rex once he noticed which didn't take long, now the damn thing runs sluggish as a tortoise/backfires. The plugs were fouled- I changed them out but still running sluggish, the fuel filter was dirty as heck replacing that as well, now I'm going to check the spark arrestor may end up totally removing it. Your thoughts please.
The fuel pump mod I did should work on anything with an in tank pump. Yeah we have had them over filled before. Just make sure you flush it out real good and it should be fine.
Also thanks for subbing! we appreciate your support.
@@HammerHeadGarage The fastest reply I've ever seen on TH-cam! Much appreciated, Thank You very much & have an Awesome day!
@@gonzobongo6669 You too buddy! have a great one.
god i wish you were in nova scotia lol
I've got a kvf 650 Brute force 2006 doing the Same as that atv any advice? Doing the sort off same thing as that after I flitted a winch use to hear the noise from the pump but dose not make the noise
check fuses and wiring. no fuel pump priming equals no fuel.
Hello so myn dusent av a pump mate dus it only av a fule prime tap and runs of a vacuum pump mate naw, av lost all apart fuse is r all OK wel the only two under the seat I can find or is the rny more mate
Hi,
2008 brute force fuel injected
I did the fuel flow test and it gave me 50 ml after 3 prime cycles. I changed the fuel pump filter, it was really dirty, did the fuel flow test again and gave me 150 ml after 3 prime cycles. I’m still getting no start however. Did compression test and checked ignition it was good. Would you have any idea what the problem can be ?
try pouring a few cc's of fresh gas in the spark plug hole and see if it kicks. Do as fuel pressure test with a gauge.
Hello, Can you shed any light on the 2017 Brute Force 750 electric power steering? It seems like there is little to no assist. Been that way since new. Dealer says nothing wrong. Any way to increase the assist? Kawasaki and the dealerships are tight lipped about this issue. I feel like i wasted alot of money for this stock feature. Thanks in advance.
I told them when it first came out not to do it. It's garbage. They put it on there knowing it would break to make money selling the bits that make it work.
I have a 2008, kawasaki brute force 750 , it shuts off after 5 seconds or so , and keeps doing that , what is the problem, please help
I have an 08 650 that I have bought it has 750 carbs I adjusted the values to the factory spect at giving it throttle and wants to backfire can u give me some advice and the belt light blinks
The Belt light comes on every 100 hours or if there is a problem. Try a belt light reset. google it.
selling my 07 750 with zilla mud tires ss wheels added bigger brush guard trailer hitch holder and snow plow needs alve adjustment and case has very minor crack
Hello sir having problems with a 2010 brute 750 just backed it off the trailer washed it down quick and would start again did fuel pump and filter narrowed to ect and roll over switch and other module I’m not sure what it is what’s your best guess here? If you don’t mind sharing your knowledge no expectations just at a loss!
Check the basics. Do you have spark? is fuel getting into the cylinder? air filter plugged? Also check the roll over switch. Unhook the neg terminal of the battery and then re attach it.
@@HammerHeadGarage thank you for your help we found the issue broken wire under rear shock tower! Go figure!! Cheap fix though!
I got a 08 bf 750 runs good when warmed up but at first it wants to die when i put it in gear & try & move..any suggestions?
Have the codes read. Sounds like a coolant temp sensor acting up.
Us that same pump for brute force 650 2009?
yup
I have a 2011 kawaski teryx 750fi sport. Mines doing the same thing. I’ve put a new fuel filter and spark plugs. I tried poking a hole in the screen on fuel ascending unit. Now it won’t start at all. Before it backfired and had no power. I ordered a new fuel pump and ascending unit. Any ideas what else it might be?
Do a fuel flow test as outlined in my video. Check all the ignition and fuel pump related fuses and wiring. Do a leak down test.
Hi mate hopeing u can help me Iv a 2005 kvf750 I just bought and it starts up perfectly but on set off it had a bad splutter problem and lacks power Iv done a full service on it oil filters plugs any help would be greatly appreciated
Sounds fuel related. How old is the petrol? is the fuel pump working? Is the bike charging? should be 13.5v to 14,5 vdc at idle.
I have a 2009 brute force 750 fi it was running good but smoking I changed the rings and pistons didn’t notice till after that the new pistons bumped the compression up to 11.5.1 it will crack up an run but mostly fires on the front cylinder I’ve swiped the coils no change I even took k a ecu off another bike. I’ve checked the timing multiple times did a compression test and have rechecked the valves about 8 times. I’m all out of ideas please help
I got air fuel an spark
How do u reset the belt light mine is stuck in limp mode no power bogs down when i drive it
Search up my video. It says "Belt light reset"
What’s the problem when it starts right up and dies 5 seconds later. It has vacuum fuel pump. Carb is clean. Lines clean. Getting fuel it just dies. Need advice
Can I fit a 2019 model crankshaft on a 2006 model?
No. They are not the same.
I have a 2012 BF 750 and it has all power when cool but when warm it loses power slowly then when you hit the kill switch while driving a couple times it’s back to full power for about a minute what would cause this??
Could be a coil problem, ECU or a number of other things. Check every ground on the machine. Load test the battery.
Great video on fuel pump test! And love your unplugged acoustic guitar playing Hammer Head Garage your a great guitar player unlike myself! 😂.... Can this cc per cycle method work on our pulse fuel pump??? Also would you or anyone hear know what can cause our problem? We have a 06 brute force 650 with a misfiring issue out the rear carburetor at idle & it lacks power in rpm's misfiring when rpm is increased...we put a new pulse fuel pump in it the old one was cracked it still backfires at idle with new pump on and a flame i can see deep in manifold boot when it's misfiring, the rubber manifold boot on the back cylinder it's white inside the boot noticed that when i cleaned carburetors changed out the jetting for a new ignition box its gotta be running lean with that white in intake boots yes? i went through settings on air screws from 1 turn out to 3 still spitting out carbs and lean no mater were im at on air screws.. our valves clearances are at the stock setting and done on compression stroke our intake is at 0.10mm exhaust is at 0.20mm i rotated motor seen intake valve close waited for my top dead center mark to come up for the cylinder i was on the tapits had play in them im told thats how you know your at TDC yes?? we have 60psi on cylinders we have all new jets and diaphragms in carburetors for this brand new Dynatek F.S. digital ignition we have in it our old one had a crack in the bottom,, we thought all these parts would fix our idling misfiring 😂. i got fed up used a gravity feed fuel tank straight to carburetors it improved a lot so did my power of my rpm rev but still have that misfire.. any input you or anyone hear would have it would be very appreciated these brute forces are the toughest 4wheeler i ever wrenched on im about to scrap it! 😂
Do a leakdown test on both cylinders not a compression test. Did you ultrasonic clean the carbs? the cc method only works for a electric fuel pump.
@@HammerHeadGarage Thank you for your reply and professional technician help Hammer Head Garage! I didn't do a leak down test on the heads I will do that see what I find and come up with. my only means to cleaning carburetors is the old fashioned Way carb cleaner and 150 psi of air and sometimes very thin wire for a passage way.. that carb cleaning tank i wish i had that set-up 😂... any chance we can make our own cleaning tanks with electric hot plates and old stainless steel pots if we can achieve the proper water temperature and use the proper solution? I really appreciate your tech help Hammer Head Garage your the best!
Cant it just be the filter in the fuel pump? its probably partially plugged. Im thinking this may be possible looking at the bike its pretty dirty as well.
Yes it can. Also that little screen inside the plastic body,
I have a 2007 brute force 750 runs strong and fine backfires under deceleration. Any ideas what this could be?
Check for holes in the exhaust/muffler.
My prairie 700 is blowing gas into the air box. Any idea where to start? Cleaned the carb multiple times
check float level. Do a leak down test. If fine when were the valves adjusted last?
Probably never adjusted. Its my dads and it just stays in the garage barely gets used. Great shape for its age but little to no service besides the little stuff (oil, air filter, fresh gas). Ill do all that stuff and get back to you. Valves aren’t something i think im capable of doing myself im not a very good technician haha
What should compression be on my 2008 750? Also when im checking do I need to have both plugs out?
Take out both plugs and ground them in the plug wires to the chassis. Range should be 36-66 psi on a warm engine. Make sure the throttle is held wide open when cranking.
@@HammerHeadGarage upon doing this I got 49 front cylinder and 75 on the back. The guy I bought it from had a different plug in the front cylinder and the cr7e in the back cylinder, i put the right ones in seems to run fine. Hard time starting tho.
He has me a little shook tho because I went to msg him back on facebook to ask him some questions and he blocked me.. so im thinking I might experience some more issues.
I have a brute force 750 I dont have the fuel pump thing like yours and I dont have a belt light things to rest it eather what do I do
what year is it?
Hey I need help finding a cdi box for a 750 brute force 2008
It is a rare failure but it has happened. Check all the wires first. E bay used. They are very expensive new.
Gotta question for ya, is the stator in a brute force 750 in oil, my brute is leaking a small bit out the stator plug it seems and I'm told it's not a big problem, just replace plug.
There is some oil in there yes. Just take the cover off, clean it real good and use a small amount of amazing grey or permatex sealant on the plug.
Hey shawn, I've been chasing bogging issues since I've owned bike.only when bike is at temp.when cold have no issues.ive replaced pump and coils, did your fuel flow test and got 150 cc fuel, within a few mls, anyway, after replacing coils, the bike worked great for about hf hr, then it stalled which it never had before, but it fired right back up and shortly after just totally dies, I am getting no power to rear cylinder coil, I did a loop test on wire and there was a complete loop.any ideas on cause
i have a 2006 brute force 750. bought it used and had no problems. got it home and the problems started. i was riding it and !/2 and full throttle it will back fire in the back cylinder. dealer has put new carbs on, cleaned vent lines, ect... they want me to come pick it up as they don't have the time to mess with it anymore cause they are backed. $715 in labor and still not running. alot of people are saying it could be valves needing adjusted. i need answers!!!!!
Do a leakdown test on both cylinders and get back to me. Could be many things. Puting the front cam into the rear cylinder will cause this. Low compression, bad valves, bent valves etc.
@@HammerHeadGarage how would I do a leak down test?
@@nmm4326 take it to a mechanic.
I have 2011 750 brute force once warmed up when you give it a lot of throttle then back off all of throttle it back fires plenty power its just when you back off the throttle all the way
Leaks in the exhaust pipe and muffler can cause this.
How’s it going I have a 2010 brute force 750EFI bike was working good on a run and I have a new pump and sock filter in it from 2 runs before the bike on the last run got it on open road and wouldn’t go over 30mph now still won’t take a good punch on throttle then shuts it down but after letting bike cool for a couple mins fires right up and goes for another 10 mins then shuts down still cuts back while giving it checked coils with metre seems fine do my knowledge of testing do you think I’d need to poke whole in the sock filter?
Not in the sock filter but the hidden one inside the plastic fuel pump housing. Google it. Hook a fuel pressure gauge to the bike. Ride it till it acts up and look at the pressure reading.
@@HammerHeadGarage do you happen to have a number I could call you at if you have the time
Well actually is it the fuel regulator I gotta check is there a filter in there I appreciate the reply back and feed back thanks so much!!
Thanks for help went and checked fuel filter and there was a rag from
The mechanic before that put fuel pump in was choking it out lol
What if i got 300 ml and is stock brute 2008
Mine is doing same thing as you explained in the video after half throttle it falls on it face but mine is carb model could you tell me what’s wrong? Valves been adjusted and are set right just replaced the intake boots spark plugs an it still runs like crap
It will take throttle all day long idling but if ur in gear an go past half throttle it bust back
No I could not tell you. I d have to see it. Start by getting a service manual and go through all the steps. What do the plugs look like? do you have spark on both cylinders? is it getting fuel? etc etc etc.
The main jet may be partially plugged. Has the carb been apart? was it put back together proper/
What if I’m having a similar issue but right opposite it’s the front cylinder I believe not firing until i I get the rpms up about half throttle and then it kickes in and runs like a bat outta hell
And the front cylinder has good strong spark and I just put new plugs in it.. it’s a 2008 fuel injection model
try switching the coils and see if the rear starts to misfire.
Good morning Mr hammer head I have a question my 07 brute force 650i Vtwin my neutral light sometimes doesn’t work sometimes it does but when it don’t it leaves me stranded. Yes my adjustment seems to be on point and adjusted good is their a neutral switch somewhere ? I know it’s a dumb question but idk where it’s at I don’t have a book. Any suggestions from u would be very much appreciated. Thanks in advance
Yes there is a neutral switch. Its located at the top of the left engine cover near the rear of the cover. Check the wiring. Often the wiring has a short in it. Otherwise just replace it.
@@HammerHeadGarage top of the left Engine cover? Do u have a picture of what area it’s located for better understanding for me? Thx in advance your channel is awesome I really do like my brute force and just want to fix it right
My 750 brute force is backfiring through the exhaust and will not start. I've reset the belt but it still backfires while trying to start it
Is this the same for a 2009 650i brute force
if its FI yup.
Hey I need some help I did the fuel test and I came out at 200cc but I bog down like you were saying anything else?
Do a leakdown test. Also the pump has a tiny screen inside it that clogs up. That might be whats going on.
@@HammerHeadGarage how do you do a leak down test?
Hi. you doing I have a question kawasaki 2016 brute force 750 it will turn on but after its loose force can you help me please
buy a service manual. could be a million things. Test the fuel pressure
@@HammerHeadGarage ok thanks
Hammerhead I really need your help on a 05 brute force 750??? I bought the machine I had mid range high to wot power with no problems ,but I had spitting light popping through the carburetors at all times and it wouldn’t idle correctly without turning idle up high so what I did I took carburetor apart cleaned it very thoroughly jets a little dirty clean them up replace the intake boots and then I got bike to idle better great now all of a sudden I lost my mid range and my high and power or before it was the opposite , and when I checked the air screws they were two turns out I’m lost and I adjusted the valves and I double checked so I know those are OK I did replace my computer with the Dynatech CDI before I started the carburetor and I still ran fine more power with the newer CDI in it and I even plug the old one back in after I rebuilt the carburetors just to make sure it was in the CD I doing something and I still ran the same way please any help is appreciated and I did check needles diaphram and float level they were fine
Well there is something up. FUEL, AIR, COMPRESSION
Go back to the basics. DO a Compression and Leakdown test. What reading are you getting on the coils? Has the heads been off or cams out recently?
Hammer Head Garage I just dropped tank removed old gas fresh gas check screen it clear startup same thing, from carb doesn’t pop or spit front does I did notice rear carb needle vacuum slide flutters up and down,but front carb spitting vacuum slide stay in one spot and is not fluttering up and down like rear?
@@mitchellowen8821 read my above reply. What are the values I asked for?
Hammer Head Garage Figured it out the diaphragm was just barely cockeyed not making a seal on the vacuums line and I didn’t have the air cleaner on when I was testing it to see how it ran so I put the airbox on in the air cleaner and it runs perfect
Hammer Head Garage I did takeoff the tank in the just the valves clean the carburetor service all the boxes now I know the whole quiet inside and out and I just bought it a week ago
I have a 2014 brute force 750 and have the same problem where it backfires and it slows down and has no power. I already replaced the fuel pump and it still does the same thing. Will it be the speed sensor??
where the pump plugs into the top there is a little screen. Did you bend a nail and poke a hole in it? Sometimes this fixes the issue.
Hammer Head Garage ill try that thankyou
Im trying to put one together,(2003 650 Prairie), My question is, whats the difference between the rear head and the front?? Seems the front is about double the price and rare to find with cam, Why?
Sorry, thats 2 questions.
Heads are the same but the cams are different. the rear cam has a raised radius along the face of the seating end.
@@HammerHeadGarage I deeply appreciate the insight, but i have been staring at a front and rear cam pic for an hour and still dont see what you are referring to. Please send a pic. Thank you!
I think I see the raised portion. So, is it possible to buy a cheaper rear and substitute a front head??
I said it wrong..... buy a rear head and swap the cam for a front cam and install it??
2008 brute blue shut off while driving, display comes on when i open the key but wont crank
Check charging system , battery and ignition switch, and wires.
Hey how can we get in touch, I just replaced the drive belt on mine and I cant figure out how to reset the "belt" light, was wondering if you couldn't help.
Just google it. there are a whole pile of videos on how its done on the internet.
@@HammerHeadGarage yeah but none of them help, most show 2 connectors with 4wires each, I only have 1, there's no white connector at all
@@danielcastro8012 Someone lost that white plug. It is not attached to any wiring it just jumpers the black plug. I would get my hands on another machine and ask to borrow the white plug.