When first cranked idles good but after engine warms up it will not come back to normal idle after throttle release for a few seconds then idles normal
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
SOURCE: how to lower the idle on a 2002 yamaha 650 v-star classic?
under the left side of the gas tank you will see i black knob/screw at the end of what looks like a hose. the knob faces the rear of bike. that adjusts the idle. its real easy to find and the only adjustment you can make to the carbs.
SOURCE: i have a yamaha v star 650 classic when you give
It could be as simple as the cables need lube...buy a small tool made specifically for oiling the cables from the grips down (you can get it at the dealership)....if after several attempts (It will need to penetrate all the way down the inside of the cables), it doesn't change contact me again.
SOURCE: V Star 1100 - after cruise speeds engine rpm
Check to be sure the cables are not binding.
LUBE those cables!
You can buy a device that is simple and not expensive to lube the cables.
My V Star-1100 custom did exactly the same thing after about 4 years.
Seems the standard service package does not include lubing the cables!
After a generous lube the throttle cables and sticking slow return vanished.
Pleasant surprise how easy the throttle and clutch cables worked too!
Good luck!
SOURCE: I HAVE 2002 YAMAHA V-STAR 1100 CLASSIC THAT RUNS
take a can of carb cleaner an spray all around the carbs an intakes while it is running if it revs up or chokes down you have a intake leak try to tighten them up and see if that corrects it it could also be dirty air breater it would cause it to idle poorly until it warms up
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