Yamaha VSTAR 1100 Fuel System Testing and Troubleshooting - From The Fuel Tank to the Carbs
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- เผยแพร่เมื่อ 23 ส.ค. 2024
- Today we will be going through the complete troubleshooting of the fuel system of the VSTAR 1100, before paying a mechanic to do it. You might find you can isolate and repair the problem yourself. A link to a movie is provided with instructions for the removal of the rank and required items.
This test begins with the battery, ensuring proper function, without which, nothing electrical is expected to work properly. This is followed by a quick test of the fuel valve itself. Does it flow? DO YOU HAVE GAS? Happens more than you think.
Moving on, the side cover is removed to expose the pump, we can remove that cover and listen to hear if priming is attempted. The sound tells us much, A few tests based on this sound can allow us to see if there is a blockage or a faulty pump with good electrical flow. This includes removing the cover under the seat to expose the fuel filter for inspection and possible replacement.
If the pump wasn't making noise, other electrical components may be faulty too, we should start at the main fuse 30A under the seat, from there, the fuse box on the side has a 10A that should be checked, along with all of the others. With the fuses good a check for good starter operation should be done to rule out the kill switch or the side stand switch.
At this stage the ohm meter should be brought to the harness where the fuel pump is to measure the resistance of the pump motor, Finally, the fuel pump relay is removed from forward the carb area. This test is a bit tricky for some, as some folks may want to take this to a more experienced person or a shop for testing. This requires a separate 12v power source to energize the 12v relay with which the ohm meter measures the contact side of the relay.
The last piece of the circuit is the ignitor that can only be tested in a swap-out at a shop or dealership. A separate video link shows the tank re-installation. The only other issue could be an open wire in the system as a short would have blown a fuse.
#vstar #vstar1100
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Mate, I owe you! This video saved me a trip to the shop. bike wouild not start, fuel pump dead. It ended up being the rear 30 amp fuse! Pulled it out, checked continuity and put it back in. Brmmm, and away she went. Thanks so much👍
Love the video! My Brother in Law and I have been trying to figure out what is causing my V Star 1100 to not get enough fuel. We think we found the issue at the Fuel Pump. We noticed that over time the pump got much louder when priming and it seemed to always lag behind when getting on the throttle.
We might have to go back and undo the gas lines to see how much it’s actually pumping, but huge props on the video! You have made my life much easier as a first time motorcycle buyer!
Glad the video was able to help out.
Want to say thank you. Time to get the 02 1100 ready for spring. Really appreciate the time you put into these vid tutorials. Went and liked a few vids and saved them in a youtube folder. Again, huge thank you!
Glad to help
I’m glad we own the same bike, you helped me rebuild my carb. Thanks
Great to hear!
Hey brother, you’re good. I love your videos you’re helping me a lot. I haven’t had a motorcycle in years. I just picked up this 1100 Yamaha and I’m putting it together getting back into this motorcycle thing. and your videos are helping me a lot. You going into detail these other guys don’t show you what do and don’t go into detail like you do thank you brother. You’re awesome thank you so much.
Glad the videos were helpful to you.
Great tutorial! If taken and considered at the conceptual level, this approach applies to most all vehicles with internal combustion engines. 👍
Fuel injection would have taken me longer to go through. There’s a lot of dynamic considerations in efi.
@@retrotechandelectronics We await your EFI diagnostic and maintenance video! In my case I was thinking about my 36ft RV with its carbureted V10 engine. I'd probably put in four miles just going back and forth between the engine compartment and the gas tank checking on connections, wiring, and so on. At least on the Yamaha everything is within arm's reach.
Thank you for your great videos. I’ve been using them to do maintenance on my 2003 V Star 1100. They are very well done. I’m going through my carburetors and fuel system using your videos. I wish you would do some videos on a Royal Star Venture. I have one of those and will be doing the carbs and fuel system on it. Thank you again for the great videos.
Glad they help, but sorry I dont have a Royal Star
I watched your electrical test video and followed along with my 1100..Indidnthe same with this video. Everything tested out to be fine. You nention at the end here about the dyno. What would it be about the dyno or s/s of a vad dyno. Btw you do the most fantastic thorough instructional vids period. Your voice flows nice with nothing to be missed or needed played back. 5 stars
I live in Germany and recently had my XVS 1100 Dragstar classic (European version of the V.Star) in the shop because live the bike in the video I had let it sit for a few years and the gas turned to slop. I had the bike towed there in order not to gunk up the fuel system with the old gas. The shop supposedly overhauled the carbs, adjusted the valves and installed a new peacock. When I picked up the bike it seemed to run pretty good, not great but good. But gradually the bike started having issues and it got to the point ( after only 600 kilometers) that I needed to drive with the choke on all the time. Long story short, i brought the bike back and explained what was happening and they told me that I was to blame because i only drove 600 kilometers in 3 months and that would cause the fuel system to gunk up again. They ended up cranking up the idle and SOLD me a can of fuel additive and told me to come back after i pushed a tank of fuel with the additive through the system. The bike still isn't running great. I would appreciate any thoughts , opinions or advice on what is going on. Thanks.
Made it all easy for me, Thanks man.
No problem 👍
I just wanna say I appreciate your videos very much I used the carburetor videos to clean mine and take everything apart thank you very much
Thanks for getting back. I guess what I need to know is how to do the electrical check on the fuel pump relay. I did perform the continuity test on my current relay at least 3 separate times and got no reading at all. I’ve since ordered a replacement and need to know how to perform an electrical test with just the rudimentary tools I now have.
Thanks
i was thinking that the pump clicking sound was a problem. you saved my money gentlemen! thank you so much, subscribed! :)
Glad I could help!
Need some clarification on the fuel pump relay test. I think I can perform the continuity test with alligator clips & my HF multimeters. Not really sure how to test to get the “click click” that you showed. I don’t have that same piece of equipment you do. All fuses good. Horn, lights, starter all work. I also checked the corresponding power source on the harness withe ignition switch on and the kill switch in the ON position. With my test light, it showed power. Hopefully, I can get the fuel pump going.😃
I also enjoy your videos because you retake the time to explain everything in great detail. Whatever mechanical aptitude I have comes from TH-cam.
The clicking is the priming when you turn on the ignition, provided the bowl aren't filled with gas.
i have a 1999 Yamaha road star silverado 1600cc which i just bought i notice no noise from fuel pump need to find the fuel pump with image
Your videos really helped to rebuild the carbs (there was some green gas rot in the enrichener circuit / section) but I'm having an issue where the bike doesn't have the power / quickness to rev as she once did. She's sluggish to rev is the best way to describe it. The bike was like this even before rebuilding the carbs. The bike is completely stock. I've changed the CV rubber boots and needles from another working well bike, thinking there might be a pinhole that I couldn't see, but no difference. Tried replacing the full pump, same thing no difference. There's a new fuel filter put on in the stock location. Spark plugs look ok as there is no wetness residue. I'm really stumped as to what to look for next.
Did you ever find out what wrong. I felt my bike sluggish today.
@@frankperez4558 Yeah I changed the spark plugs and she was fine after that. I’m assuming one of the NGK plugs was fouled.
Does anyone else experience a lot of kerchunking on the starter motor? This is caused by engine kickback and bad design by Yamaha. My starter bolts were very twisted and so I replaced my starter and starter clutch some years back, but this issue never went away. It makes me cringe every time I start my bike, and it's the only reason I will possibly sell my bike some day.
I bought my 1100 Custom new in 2002 and have probably pulled my carbs 30 times over the years, as I'm on my 4th set of pipes, Cobra 2-1 HP, pods, SS420 Cams, Dynatek ignition. Replaced the rear fender and seat for a chopped stiletto look and made custom lights. I've poured a lot of love into my bike, and it still runs like a champ and pulls strong!
Vc poderia fazer um vídeo mostrando como tirar a peneira da bomba de oléo pra limpar
You do such a great job at your videos thank you very much
Glad you like them!
great video and very well explained thank you
Glad it was helpful!
so i need a little help, i have been working on my buddies vstar for bout a couple days now and this thing refuses to start. i checked the fuel pump and found that it primes perfectly fine when there is no fuel line on it leading to the carbs, but when i put the lines back on it doesn't prime and it sounds very weak when it does the little amount it does. could i have a bad fuel pump? thing has great spark and has air but i am concerned about the pump.
If the bowls are full it will no longer prime.
Great Video Thhanks!
Excellent! Thank you!
Glad it was helpful!
Great video!! Thanks!!
You’re welcome!
Your video helped me, find my issue.... for the life of me this is a stupid design. The output of the filter should goto the tee that splits to the carbs and bypass the fuel pump...it looks like gravity feed will be plenty...What a weird way to introduce potential failures.
I can’t speak as to the reason why it was designed as it was.
My Yamaha vstar classic1100 02 runs but revs up when i stop then shuts off i have been trying to fix that issue but i cant seem to find anything
How in the heck do you change the speed position sensor? Dang near have to disassemble the entire back end to even access it.
Thank you man the very nice video
Glad you liked it
Two questions:
- Should the pump have continuous power when the contact is turned on? Or is it correct that the relay turns it off after a few seconds?
- How hot is the fuel pump supposed to get? Mine is getting pretty hot and seems to stop functioning when it does so..
After the bowls fill there is no more priming to do and it cuts off, generally after a few seconds of clicking.
Any way I can get in contact i have a few questions about my 05 Yamaha 1100 vstar
So the noise the fuel pump gives when it’s prime in gos normal cuz im wore it will give out soon
Normal.
Your videos are Super helpful I appreciate you...quick question.. I installed a new feul pump on my 2000 1100 v star... it clicks when priming, normal... but then it clicks about every 2/3 seconds after running... is this normal... thank you sir
Yes mine does the same.
I would like to know why is gas coming out front engine exhaust
Are you sure this is not water vapour. Gas can not come out of an exhaust in any volume on a running engine.
looks and smells gas. Front engine is not getting hot coil has fire and have new plugs in it reset valves
Great stuff! Tell us about your air cleaner ?
I just did a separate video on this system
th-cam.com/video/U6t7X8qvk7c/w-d-xo.html
Thanks so much for your videos, they’ve been a great help when rebuilding the carbs. I’m having an issue where the fuel pump is not getting power when I turn the key on but the pump works fine if I apply power directly to it. I’ve already replaced the main relay with the 30 amp fuse as it went bad and I’ve also replaced the relay that you tested at the end of the video. My manual says to test continuity of the ignition switch and the stop switch but doesn’t explain how to do so. Can you please advise how I would do so or what you think the problem is that is causing me not to get power to the fuel pump when I turn the key on and try to start the bike. Thanks so much.
find the wires for the stop switch, turn the switch on, see if the meter goes to zero ohms.
Thank you
You're welcome
i have a 1100 vstar and i was having trouble getting fuel to carbs i cleaned them about 100 times and now the carb to the front cylinder is getting too much gas it shoots out the exhaust but none leaks out of the overflow when i turn the gas off and let it run out it starts running on both cylinders does anybody know what i should look for?
Will you do a starter installation video?
I would as soon as I have the opportunity to document a starter installation
1999 Yamaha road star silverado 1600cc where the location of fuel pump on thos model Yamaha is it on left side or right side of bike
Follow the fuel line back from the tank
Great videos, Amy way you can give me a parts list for your air intake system? That looks so much easier than trying to get that airbox on without the rubber 90s slipping 400 times. Is there a place I can just order the kit?
th-cam.com/video/U6t7X8qvk7c/w-d-xo.html
Okay so I know it’s a dumb question. But the ‘in’ tube on the fuel pump.. that’s the one that is connected to the petcock and gas tank correct?? For fuel to go ‘in’ to the pump.. right? Idk I feel dumb asking but yea
yes.
Great video man, really handy. just want to ask what you think my issue is, so I been getting issues with losing power and even cutting out at high revs and I noticed my fuel system had a lot of rust in it and including the carbs, changed my fuel filter, de rusted my tank and drained both carbs and It's been a month with no issues but now I'm sometimes getting a loud singular click noise with huge loss in power for less than a second, this mostly happens when warming up the bike. also I'm getting the same issue as before with loss of revs entirely at high revs. Do you think this is the carbs?
Oh also my battery swollen massively and was about to blow so I replaced that and the voltage regulator, dunno if this is anything to do with it
See if the problem continues with the battery and regulator replaced.
Do you have any advice for the problem where the rear cylinder is weak? Is there any way to adjust fuel mixture on the carbs without removing them that your know of?
Define weak. Have you done a compression test?
Gas keeps on flowing through the fuel pump after turning killswitch off. (The pump is not pumping but allows gas through) is it a bad fuel pump?
If the hose is open, the check valve is only in the opposite direction.... Does it pump gas when powered? If so, Its ok.
@@retrotechandelectronics yeah it pumps when powered.
What if the pump isnt priming? Is that an electrical issue then?
If it doesnt prime at all go through the whole troubleshooting procedure
can you explain how to test a fuel system
By pressing play on this video.
Here's a link to a great video I found explaining the whole process: th-cam.com/video/hblkBSTiWxE/w-d-xo.html
Drain a little gas from the tank Shake the tank a bit drain enough gas iff to check for Water Contamination too !!
May i know what year is ur Vstar sir?
2001
No sound
Turn up your volume
👍🚶💬
Maybe the combustion engine has to many different things to go wrong, I am sure you,petrol,heads may disagree, but roll on when the fast and powerful electrical bike comes into it’s own, ye ye ye sacrilege, but time is precious to keep messing about with combustion engines, and expensive also, the Electric vehicles will come down in price and a fraction of the problems, than the combustion engines have, to many things to go wrong basically, there a bloody pain to be honest…
The fun is fixing the problems yourself no matter how long it takes you it’s also about who you fix it with
@@Grease_monkey-913 no fun at all...rather like saying when you're really unwell , then fun is taking the medication and getting better,...I do not know what planet you're living on or what you are taking?