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Hey everyone. My names Chris I have basic troubling shooting skills regarding mechanics an wrenching. But four wheel carb troubles is not my strong suit. 1990 Yamaha 250 motor four. I removed carb ,cleaned it, jets, orifices etc. Reset fuel mixture and idle etc. Now it still does not idle and it labour’s when under throttle. The carb is leaking out the bottom now. We replaced the spark plug. It’s got me frustrated. Does anyone of my fellow Yamaha lovers out there have some tip or tricks to help me out?
 

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Check your float level. If the fuel is running out of the overflow port, your float is either stuck or the level is too high. It would also affect the way it runs.

Mad
 
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