Question about 2003 Yamaha V Star Custom

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2003 vstar 650 custom. sat for 2 weeks, now it won't start except on full choke and stalls if you try to give any throttle. will run for a minute or so but then stalls out. changed fuel, air filter, fuel filter. what to check next?

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Might be crud in carbys if not injected. If carbed then undo the carb drains to see if fuel comes out.

Posted on Oct 20, 2010

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Why does my vstar 650 idles fine but chokes out and dies when riding


Hi, Anonymous and the usual suspects are:
1. Throttle cables misaligned or misrouted.
2. Damaged or restricted fuel tank venting system.
3. Inlet system air leak.
4. Vacuum piston malfunction.
5. Accelerator pump leaking or no output.
6. Plugged bowl vent.
7. Fuel level in bowl too low.
8. Restricted fuel supply passages.
9. Plugged jets or passages.
10. Worn or damaged needle or needle jet.
12. The enricher valve not seated or leaking.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
http://www.starbikeforums.com/forums/18-engine-work/5318-wont-run-above-idle-fuel-pump.html
http://forums.cycleworld.com/showthread.php?t=169267
98 00 Yamaha XV650 Star Service Manual XVS650 Moto Data Project
OEM parts for Yamaha
http://www.starmotorcycles.com/assets/service/manuals/2003/LIT-11626-16-05_22.pdf

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Jul 06, 2014 | 2003 Yamaha V Star Classic

1 Answer

Carb Issues


It's winter time...so cold weather is present and you'll have to use the choke. Are you using the choke?

Dec 29, 2013 | kawasaki 2005 Prairie 360

1 Answer

2004 Vstar 650 only runs with full choke, dies with throttle or pushing in the choke, I plan on changing the fuel filter tomorrow. I also found a small ball bearing in the tank, should that be there?


Hi, Anonymous not sure about the ball bearing talk to your dealer and the usual suspects are:
1. Fuel cap or fuel tank is not venting properly.
2. Fuel filter clogged.
3. Fuel line pinched or kinked.
4. Float needle and seat sticking.
5. Float level too low.
6. Carburetor bowl vent line clogged/blocked/pinched.
7. Idle adjusting screw set too low.
8. Air/fuel mixture screw set too lean.
9. Idle port, transfer ports, slow air jet clogged.
10. Slow fuel jet clogged.
11. Faulty fuel pump.
For more information about your issue and valuable "Free" downloads that you will need please Click on the links below. Good luck and have a nice day.
2004 Vstar idle only on full choke problem
http://forums.cycleworld.com/showthread.php?t=169267
98 00 Yamaha XV650 Star Service Manual XVS650 Moto Data Project
OEM parts for Yamaha
http://www.starmotorcycles.com/assets/service/manuals/2003/LIT-11626-16-05_22.pdf

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Aug 19, 2012 | 2004 Yamaha V Star Classic

1 Answer

I have a 2000 Yahama Vstar 650. It starts up immediately but runs really rough, stalls when I turn the choke off... We just purchased it two weeks and the gentleman told us that it sat last year. However,...


If old gas sat in the carb.s for more than a month it starts to dry up. As it drys up it leaves behind a varnish like film that stops up some very small ports and pin holes inside a motorcycle carburetor. It is also very hard to get out. You can try this before you pull the carb.s for a full cleaning.Use a product called Seafoam, get as much gas out of the carb.s as you can. use a turkey baster and force the seafoam into your carb.s fuel line that you take loose from the fuel tank. Let that set for say 1 or 2 days. then hook up the fueltank with a mix of good gas and seafoam, (not a lot but enough to start it up. Move the cycle outside as the seafoam will make a lot of smoke if it does start up. If that does not clear up the problem you may have to pull the carb(s) and remove the blows to clean the inside. If you have to do that do not DO NOT MESS with any adjustment screws, DO NOT MESS with any adjustment screws. Just take the carb. bowl(s) off keep each one separate and number them so they do not get mixed up. do not mix up any internal parts. It is best to work on one at the time so nothing goes wrong. Work on a large sheet so if you drop a small part you can find it, you do not want to be missing some tiny spring or screw. Hope this Helps.

May 07, 2011 | 2000 Yamaha V Star Custom

1 Answer

650 yamaha vstar 2006 stalls out when giving it gas


Hi, Donjkiii and the usual suspects are:
1. Idle port, transfer ports, slow air jet clogged.
2. Idle adjusting screw set too low.
3. Air fuel mixture adjustment too lean.
4. Pilot/slow fuel jet clogged.
5. Faulty accelerator pump.
6. Float level too low.
7. Float bowl contaminated old fuel, water, dirt, rust, etc.
8. Carburetor bowl vent line clogged/blocked/pinched.
9. Fuel line to carburetor kinked or pinched.
10. Fuel filter clogged.
11. Intake manifold leak.
12. The gas cap is not venting properly or fuel tank venting system blocked.
13. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
14. Needle and seat stuck closed in the float bowl.
15. Multi carburetors not in sync.
16. Faulty fuel pump.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
650 idles on choke and dies on throttle in 650 Star Tech Forum
http://www.starbikeforums.com/forums/49-v-star/68346-650-starts-but-dies-throttle.html
Yamaha XVS650 Service Manual
OEM parts for Yamaha
YAMAHA XVS650 Owner Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Sep 07, 2010 | 2006 Yamaha XVS 650 Dragstar Classic

1 Answer

1983 Yamaha Maxim 650 Just got bike a few weeks ago - engine was replaced to I believe a 750 Engine will not turn over - starter engages - all battery and electronic components and fuses looked over...


I had the same problem before when I got my bike. I was trying to start the bike and always giving throttle. I figured just start with choke on and it starts (do not give any throttle).

Aug 07, 2010 | 1983 Yamaha XJ 650

2 Answers

Sticky throttle cabel


idle cable out of adjustment and or throttle cable needs adjusting also and they always need to be lubed at 5000 miles adjust throttle cable with wheel striaght forward idle cable to all the way right lock and 2-3mm free play on throttle grip

Mar 03, 2010 | 2007 Yamaha V Star Custom

1 Answer

Vstar 650 classic. only will idle.


hello and welcome
this is a very very commom problem after the cycle has gone over a storage period of anything over a month or so. what has happened is the deteriorated fuel has plugged the idle jet, and possibley other jetting. this is verified by pulling out the choke allows it to run. because this makes of for the loss of fuel the jets are not produceing. so to fix this you will need to remove the carbs and take out the jets and clean them thoroughly with a carb cleaner and possibly a very small gauge wire to break up builup. especially in the pilot jet. unfortunately fuel added carb cleaners dont seem to work for this kind of problem and to fix right they should be disassembled and cleaned thoroughly. thank you.

Mar 21, 2009 | 2004 Yamaha V Star 1100 Custom

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