2002 Yamaha V Star 650 only runs with choke on

SOURCE: 2005 650 V star won't idle

i would say its either drawing air or the carbs need setup. You have to check the breather pipes and the rubber manifolds for cracks or splits.
if carbs need setup, then its best taking it to a good garage, to have them balanced and adjusted.

TL

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: Yamaha v star 650 runs with choke on only

That is the problem,You need to clean the carb jets and get the gum out of the bowl.

SOURCE: 82 yamaha maxim 650 engine is hard to start cold

weak mixture,dirty fuel,air leaks on induction manifolds,jets blocked,fuel tap filter chocked,float needles sticking,fuel level in carb incorrect,thottles not opening together,air leaks at exhaust pipe joints,

Marvin

• 85242 Answers
• Posted on Jun 12, 2012

SOURCE: 2004 ford escape - feels like hesitation,or sputtering when acceleration, sometimes just random occurance, feel it sometimes while idling. Just had check engine lite come on, showed was o2 sensors, r

Try cleaning the Mass airflow sensor and replacing the air filter. You can buy the spray MAF sensor cleaner from any auto parts store for about $6.00, ask the parts guy how to use it.