Question about 2002 Yamaha V Star 1100 Custom

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2002 yamaha v-star 1100 rear cylinder is running hot

It seems like the front cylinder is runing much cooler then the back cylinder what would cause this to happen and the bike is kind of choking when i ride it ,it feel like it wants to stall when the Rpm slows to idle but it doesnt stall

Posted by Anonymous on

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  • Yamaha Master
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Hi, Anonymous and the usual suspects are:
1. Engine oil level and SAE weight are too low or not circulating.
2. Insufficient or blocked air flow over the engine.
3. Heavy combustion chamber carbon deposits.
4. Ignition timing retarded due to faulty MAP, CKP, or CMP sensor.
5. Carburetor jetted too lean.
6. Leaking intake or exhaust valve.
7. Water coolant old or low change every two years.
8. Water pump failure.
9. Radiator clogged, cap loose or malfunctioning.
10. Radiator fans not coming on.
11. Clutch slipping, brakes dragging, heavy load, towing a trailer etc.
12. Idling too long without moving.
13. For constant hot weather temperatures, mountain, or desert riding conditions consider adding an oil cooler and or cylinder head cooler.
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.
rear cylinder running hot 2002 yamaha star 1100
HELP 04 1100 custom not firing on rear cylinder
http://www.sloneservices.com/SilverBack/Other-Stuff/V-StarShopManual99-07.pdf
OEM parts for Yamaha
YAMAHA XVS1100A Owner Manual

Posted on May 04, 2017

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SOURCE: 2002 Yamaha V-Star Classic 1100 Will not run over 70 MPH

Hi,
The first thing you need to check is the air filter. Sometimes critters can get into the airbox when a bike sits for awhile. Sounds crazy, but it has happened to me. If nothing is blocking the filter, give it a quick clean since you have it out.
Next things to check:
Faulty diaphragm
Improperly adjusted fuel level
Clogged or loose main jet
Faulty fuel pump
You may not be able to check these on your own, but these are the next likely culprits.
Hope this helped

Posted on Mar 11, 2009

  • 1 Answer

SOURCE: v-star 1100 custom stalls when dropped into 1st gear

did u make sure the kickstand was up

Posted on Apr 12, 2009

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SOURCE: yamaha v star 1100 blowing head lights

How's the battery holding up? Check the voltage on the battery and also check to see if it is bubbling a lot. 13.8V is optimal for the battery charging with the engine running, but up to 14.4 is common. If it's running a lot over that and the battery is making a lot of bubbles, probably the regulator is the problem.

If the battery is low on electrolyte, the regulator doesn't have anyplace to dump electrons, and that could also be a problem, so make sure the battery connections are good and tight, too.

Posted on May 21, 2009

  • 15 Answers

SOURCE: Yamaha V-Star 1100 backfires and will not run without choke on

Here are two solutions for you:
A - Take the carberator off and soak it in some good quality carb cleaner for about 1/2 an hour.  That should take care of any residue in the carbs.
B - Alternatively (and for the less technical minded) there is a great product called Sea Foam.  Try to find it at your local CSK auto/NAPA/Wal-Mart.  Pour a small amount (maybe 1/4 ounce) into each cylinder chamber (take out the spark plugs), try to pour a small amount into the carbs (a turkey baster works great for this), and pour the rest into the gas tank.  Let it sit for 5-10 minutes, then start it up.  *NOTE - the bike will start VERY hard at first until it burns through what's in the cylinders.  ALSO the fumes will be EXTREMELY strong and suffocating - make sure you do this OUTDOORS preferably, or at least in a VERY well ventilated area.
Good luck - I know how frustrating these things can be! :)
P.S. - I am a proud owner of a V-Star 1300 - great bikes! :)

Posted on May 26, 2009

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G'day,
I have a couple of suggestions for you.
Your symptom sounds like your bike is running lean(problem improves with choke).
Add that to your other symptoms & it sounds like your bike is sucking air at the inlet tract(front of carbies).
I recomend that you check that any hoses that may be fitted to your bikes inlet manifolds,arn't damaged or split.
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I hope that my guess is right & you should find a leak there somewhere.
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1 Answer

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