I have a 1998 yamaha vstar 650 which starts and idles fine, but when i engage throttle, engine dies. the carb looks really clean. i noticed when i engage the throttle that the slides in the carberator

SOURCE: 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.

SOURCE: Only 222 miles 04 VStar 650 Custom Rough Idle, new gas, new plugs

poor tickover is in the pilot circit. does it smooth out at half throttle? what condition do the plugs show after a long tickover?
if you didn't really really clean the carbs (full disassembly, all ports checked for good continuity) then go back and take them apart.

SOURCE: 02 yamaha vstar 1100, ran fine. started it the

Sounds like it may be drawing air around the intake somewhere. Let it idle and spray around carefully with wd-40 until it speeds up. This will reveal the leak.

SOURCE: Motorcycle 650 Yamaha throttle problems

Check your carb there is a retaining spring holding the carb throttle lever down/back to close. Sounds it is not in its place. Good help?

SOURCE: have a yamaha Ag 200. It starts fine idles fine

Dude, I have the same problem, have tried the same solutions as you. No luck yet. Maybe timing? That's my next try. [email protected]