When I push in the choke it wants to stop running. Leave the choke on and it runs.
The cause of this in most gas engines is a plugged jet in the carb. It must be taken apart and thoroghly cleaned. The jet must be unplugged with a stiff wire or paper clip if it will fit. Carb cleaner alone will not do the trick.
SOURCE: I have a 05' Yamaha
Has the bike been parked for two weeks or more? If so, the fuel has most likely gummed up and plugged fuel passages and jets. Might try adding 1/2 to full can of SeaFoam to existing fuel in the tank, crank the bike and run (with choke if you have to) at a high idle for several minutes. Shut it down and let set for an hour or so allowing the SeaFoam to work. Start bike again and run at high idle again, trying to run it without the choke. If this doesn't work, then the carb probablyneeds a tear down and a manuel cleaning and reset.
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: 1979 yamaha xs400 will only run on full choke as
it is either a float problem with the carbs or a jetting issue. i would check to make sure you have flow thru your carbs .
SOURCE: my 2006 yamaha v star 650 will run with choke on
You have a vacumm hose loose look for small hose no connecter to anything - should solve it - I had a similar problem with a ZX9r the other day - same would run fine on choke not idle or start without it
Good Luck
Del
SOURCE: Yamaha TW 200 starts but won't run.
If the bike has sat for a long period of time without being run - the gas that is sitting in the carb(s) will shellac.. Then the carb(s) would need to be cleaned and "rebuilt"..
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