How To Clean Carburetors - Mikuni CV - Honda, Yamaha, Suzuki, Kawasaki kz1000 kz1000p
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- เผยแพร่เมื่อ 3 ก.พ. 2021
- Fast paced overview on how to clean carburetors from a 4-cylinder Japanese motorcycle. These came off of a Kawasaki KZ1000 police bike and are made by Mikuni. Very similar process for most motorcycles. kz440, kz550, kz650, kz750, kz900, KZ1000, KZ1100, etc
~Part 1 of this KZ1000P: • Retired KZ1000P First ...
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~Part 1 of this KZ1000P: th-cam.com/video/3_jjfcAINUY/w-d-xo.html
Chris, I've come back to this video several times when cleaning carbs to make sure I don't miss anything. Great stuff.
Awesome to hear that you find it helpful! Thanks for commenting
@@NNKH2 Hey btw, do you remember which video you were synching with the mercury/vac gauge? Was awhile back but thought it was helpful. I thought it was on a bike. Not something I do everyday.
I like the tip about polishing the seat with cardboard.
Best carb rebuild video on TH-cam
A really excellent and comprehensive video - one of the best I've seen on carb cleaning.
A point if I may - On Japanese bikes, many of the screws that look like Philips are really JIS (Japanese Industrial Standards), and there is a difference. A set of three JIS drivers is not expensive (look for the Vessel brand) and is a good investment. Your screws will thank you!
Incredible detail, great filming and knowledge. I have a 2001 Yamaha FZ1 Its been sitting for 12 years. Flushed tank, new gas seafoam primed carbs, drained them, did that 4 times. started up and runs pretty good. It running a little ruff on the lower end. I need to do what you just showed. Im nervous to do this and don't want to screw up. Just by chance you don't have a vid showing the Yamaha? Very well done. THANK YOU!!!!
This is the best video I have seen for taking Mikuni's apart and cleaning them. Very detailed. Thank you
This is the best japanese carb how-to I have ever seen. I had to learn this stuff by the book and forum help 15 years ago! I might have shown how to bench sync with two drill bits but that is hardly a criticism. I've rebuilt about 100 sets of japanese motorsport carbs and I definitely learned some more from this video. I liked polishing the float valve seats with a drill -- in the past I've used a q-tip but maybe I will chuck up my q-tip in a drill for the next set I do.
I just picked up my fourth zg1000 after a few years away from riding so this was a superb refresher!!
Hey Scott Cates please tell me... That piece he removes at 5:59 with the little dome screen on. Im fitting a rebuild kit to my mikuni carbs off my FJ1200 (this video helped loads) The main jet in the kit was 110 same as my bike but that dome thing has a different size hole. My bike had 2.3 but my new one has 1.5. How is that gonna effect my bike??
@@DiamondMounter 5:36 Removable Float Needle Seat
Many carbs have permanent seats but it seems that that these seats are removable.
Some guys will polish thet seats, in place with a q-tip and brasso -- or pretty much anything that you can spin inside the little bore to clean up the seat bottoms. The seat bottoms are what seal against the conical tip of the float needles. Once that seal fails, fuel can drip into the cylinder when the bike is parked, leading to hydrolock and bent rods at the next startup. It's an important step.
Also important is to set float height from the Service Manual and carefully examine the little plungers on the float needles to make sure they spring back out when you press on them. Next, validate that the petcock is functional and shuts off completely when the bike is not running. Vacuum-actuated petcocks will fail after a few years of service and that is also a link the hydrolock chain.
great video....working on exact same ones off a 750 gpz (1983). Had to file the fuel bowls a little to allow easy drop on assembly against the steel piece that joins all the carbs together. thank you.
I'm glad you pointed out the choke circuit orifice in the float bowl. I had a plugged one and could not figure out why it ran so good warmed up and a dead miss when it was cold. It used to "clack" when it was cold. I found out it was the left carb on my 3 cylinder XS Yamaha so I could get at the enrichment assy. and the float bowl. That tube was plugged and not letting fuel into the enrichment circuit. Right, soak that float bowl good. If it wasn't the left carb I'd have had to take the whole shootin' match off...again.
Absolutely the best video so far on this topic. Lots of good tips and recommendations. Many thanks!
You are absolutely fearless! I would NEVER attempt this! You make it look easy! Great video!
Nice job.. Going to give it a try. First time doing 4 carbs together. Viewed several videos, watching yours gave me confidence to try. Thanks for the info, clearly simple explanations. 😊
You can do it for sure! Just keep stuff organized as you take it apart
As an old school mechanic with a gs650e that was very well presented attention to detail vid.Yes it's the small micro things overlooked that cause the headaches.Thanks 👍.
Im following your every step.
Thanks for this great video!
Fantastic video; thanks for putting the time and effort in to demonstrate and explain so thoroughly.
great video. Very informative and detailed!!! AWESOME!!
Man, what a great video. 😁 love the attention to detail. 👍
Wow great video. Well explained in layman’s terms. Thank you
Loved , thank you very informative and practical. I need that
awesome video very clear and easy to follow, great job,
Awesome video. Just picked up and 84 kawi 1100 ltd. this video will definitely help
Excellent video, great job
Thanks man!
Very helpful thanks 🙏🏻
For Re-assembly I like using Loctite Master Gasket . Sparingly , like silicone . It's an Anaerobic Sealant .
Only " Sets " in the Tight section of a Join/Seal point . Any excess will either dissolve in Fuel flow or wash off with water externally .
The Loctite is a bit Pricey , but only needs sparing use , and does NOT go off in the Tube . Provided you don't squeeze the Air Out .
Perfect!! Currently in the process of cleaning my 85 xj700 carbs which look pretty similar. Thanks man
For some reason mine doesnt seem to have those plugs on the pilot jets
Good information. Great video
Glad it was helpful!
Brilliant just the video never seen a bung on a carb before
Awesome video. What did you end up doing with this bike?
Excellent Chris! If you can find one a natural gas drill bit kit is great for cleaning carb jets
THANK-YOU VERY MUCH MATE !!
Wow, great detailed nice laid out video and some nice tips as well. Thank you sir. I'm about to start up a bike that's been laid up for 3 years. Do you recommend doing this first or just trying to start it and see if it works?
Drain the carburetors first and put the fuel petcock on Prime. Fresh gas in the tank before so as well. Always worth the try. Might run just fine. Little starting fluid to if need be
@@NNKH2 thank you, will try this. I have however put in some fluid in the spark plug holes to try and free up engine... To be honest I didn't even see if it was turning freely so will have to change the oil first then try your method. I assume also use choke on start up?
The screws are not Phillips as you say, instead they are JIS and Phillips drivers slip on them easily. Get a set of JIS screwdrivers, they are worth their price.
Something I discovered last week and has blown my mind, many a rounded screw on a Japanese bike and no I know why 😄
Awesome
Hi very informative video my husband passed away I gave my son his kz1000 Police 2001 he left it in the weather I got it back now we can't even push it in the garage it seemsike it's locked I gear or the brakes are locked up. Any advice is appreciated
Thank you
Holly
Hi, my diaphragm slides work nicely on first 2 cylinders but the second 2 have some resistance when it drops back down towards the end.... Would a clean of the slide body and inside bore help with this?
I've clog my carbs up with bad fuel that had rust in it. Took them apart and cleaned both jets, but it still only runs with full choke with the throttle set screw turned to over 2K (1999 CBR600F4).
I have a problem and need some advice. I followed your instructions as I also have an 80 Suzuki G1000 with Mikuni's. I ordered a rebuild Kit and I have everything back together on the bike, I turn the gas on, and the carbs overflow with Gas. Float Stuck? Float valve leaking at the O-ring? Should I order new floats too? Thank you
THANK
U SO, SO MUCH FOR THIS VIDEO. Nobody works on these bikes anymore. WERE CAN I FIND A CARBURETOR KIT?
The infamous JIS screws that everyone strips by usuing a regular philips screw-driver :)
IMO it's worth having a set of JIS screwdrivers when working on mikunis.
For sure. I professionally clean carbs with a sonic. The caps and diaphragms MUST go back in the same carb location. Tapping on a float bowl with the screws tight does nothing to loosen bonds. I turned this video off at 1 minute & 30 seconds.
I also suggest you get a set of JSI screw drivers, specifically for Japanese vehicles.
Good video! I have to disagree with reusing the old O-rings especially for the needle seats, I have had allot of them leak and it can possibly cause overflow into the cylinder(s} and hydro lock the engine, replacing them is cheap insurance. I realize this video is a few years old, but I had the same carb sync tool you have and found it was not very accurate, I bought a Morgan carb-tune pro and get much better results.
Great video !! Very informative. Question....82 KZ1000J, I did everything you did in the vid...except....The fuel screws. The bike starts and runs...But when I pull the choke...It stalls...Any suggestions ? Thanks
It's pretty normal for it to stall if you pull the choke after it's been running. That means the chokes working which is a good thing.
And thanks man I'm glad you found some use out of the video
@@NNKH2 yes I agree but that's what happens from when I first start it.... before it's even warm
Interesting. yeah it might be getting too much fuel for some reason. Honestly I'm not sure offhand without seeing the bike. definitely should be able to start off when it's cold though with the choke
I have a 2007 yamaha 600r with 7k miles I need help cleaning carbs where's your shop
I have the same carbs on my kz650 but im having a hard time finding the gaskets and o-rings… any idea where i can buy them?
try Z1 Enterprises they sell lots of old school kawi stuff.
i have a xs1100 79 what emoulsion tube goes in what carb
Question; I cleaned put it back and starting and idling perfectly when open throttle it’s not going smooth at all any ideas? Thanks.
At 7.19 is that a mesh gauze in there, if so is it removable
Do you have the link to this kit please
I heat my airbox with a heat gun to soften the carby intake rubbers, the go on much easier.
Good idea
Old carb boots can also be softened with methyl salycilate aka Oil Of Wintergreen
I have that exact same bike
Did u sell it?
Have you got video about carburettor synchronization?
No I don't. I meant to go over it in detail in this video but I guess I must have skipped it. It's pretty Elementary though. You synchronize the two outer carbs to each other and then each pair to each other with the center screw. Just need a set of vacuum gauges
Nice video, but these are not Philips screws, they are JIS screws. Using Philips will ruin your screws much faster. Thanks for the video. :)
im having trouble with my fuel screw. Working on an 87 yx600 radian. I have two out that weren't stripped by the previous owner, but the other two were. Tried using a drill extractor but even they are just eating away at the brass. Idk what to do anymore and I don't want to mess up the threads. Anyone got tips?
To be honest hard to say without looking at it. A little heat goes a long way I'll say that. A little
Hello NNKH.
Am new to area, New Town PA. We are looking for automotive , non dealer, service home for our vehicles. Any suggestions? CJ
I’m pretty sure I got cleaning em down but taking em off is another story haha
where are you.....I'm in Vancouver BC Canada and I need someone like you to fix my carbs on my 76 kawi kz900 ltd
Haw many cubic centmeter? for each one
So..
How do you reset a carb..
I've got one barn/garage find ..sitting at least 12 yrs ..carb and tank cleaned out ..has a 4 into 1 exhaust ..with air box on or off ..doesn't want to run past 1/4 throttle ..40 idle jets ..had 115 main jets ..changed to 120 ..still no better ..air jet was 180..changed to 190 ..no better ..with air box on ..if I take a rag and close off intake runs a whole lot better ..maybe larger jets ..or adjust needle jet ..long brass plunger one ..??
It was likely rejetted. Go back to stock jets maybe. Once the airbox or exhaust has been monkeyed with, these bikes can get out of range for air:fuel ratios at the high end.
Can you help with my carbs?
How do you clean the diaphragms?
carefully wipe them with anything but carb spray
@@scottcates Thats what I did
I broke on of the towers that hold the float.... jb weld? 😔
Yeah you got to be real careful with those. Try some of that low temp aluminum weld rod. They sell them Amazon
@@NNKH2 so try and weld it?
Off topic I'm adjusting valve clearance.... one of the cam lobes has fine grooves in it........how long would that last arg I'm in deep now lol
.22 cartrage..empty ..put that around post ..fill up cavity with 2 mix epoxy ..
Good luck..
Great video as always! Please more motorcycle videos! Maybe a Harley? Rode bikes my whole life, learned on a 62’ Honda step thru 90. My dad started it, put in 2nd gear and gave me a push. I knew it was a long walk home if I killed it, because I barely knew how to shift, and I was barely able to kick it over…
Harleys use the same carbs. Yep, japanese carbs on Harleys. I've rebuilt quite a few sets of them.
4:46 yeah I broke one of the float mounts off.... any suggestions for repair fml😬😵
Empty .22 cartrage..2 mix epoxy ..cartrage will hold epoxy in and around broken leg ..
Good luck..
get a vessel jis screwdriver, these screws are not phillips
Been using a regular Phillips screwdriver my entire life without any problems. Sure a a JIS maybe a touch better but Phillips does the job.
I worked on Japanese bikes for two decades and stripped a few screws before I learned about JIS. I haven’t stripped one since buying Vessel screw drivers. I had to swallow some pride to set aside my snap-on. Japanese Industry Standard is the right tool.
DUMB QUESTION IF I MAY, ARE YOU A POLICE OFFICER, IF SO THANK-YOU VERY MUCH FOR YOUR SERVICE AND STAY AWESOME AND SAFE,....USN VET..77-81.
I think I know what I missed on the second reclean
They are NOT Phillips screws! Use only good quality JIS screwdrivers.
Phillips works fine if you know what you're doing. Finesse
Did you want to sell, I'm looking to ride with my son! Looking for a LTD 1100! My son rides a 650r 2012 ninja!
Are you looking for a turn key runner or a project ..??
@@jerrybigrig9475 runner not pritty! I'll mad max
@@jerrybigrig9475 I got a line on a 450 and 1100 LTD combo not pritty runners for 4000
USE JIS SCREWDRIVER NOT ANYTHING ELSE JAPANESE INDUSTRY STANDERED MAKES A DIFFERENCE
GET YOUR CHOKE PLUNGERS RE TIPPED GUY ON EBAY IN THE UK DOES THEM
Something for the world to listen to right now !
Woke feminist and ....