2001 250 yamaha idle rough and stalling when i throttle up. can anyone help.
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boggingand stalling
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bogging and stalling
thank yam40 for your reply more info mod. sx250txrz , we have cleaned the vst and checked fuel pressure it is 35 psi. took out injectors to clean . but they look pretty clean. the manual says to do volt test on the os. sensor gray to blk. 0.6v. when heated any one done this test i must be missing something how can it have voltage when not hooked up.
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