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1987 Suzuki lt250 4wd Erratic Idle


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Welcome to Quadcrazy @Guillaume Cliche That some implosion damage.  Have you had any backfires ? That reminds me of an old bike I had that the timing was off a bit and the valves were out of spec also.   The engine backfired and and did the same thing to my floats. I would start there and see if the timing is off. That would also cause an erratic idle. 

 

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Sounds like you did the right job! The only thing I could think of was the timing unless your onto something with the fuel pump.   But the floats imploded to me equal a huge suctioning condition which could be the result of a poor fuel condition I would guess as if the engine is starving for gas.

But have you heard any backfire or as if the engine farted? Lol bad choice of words but best way to describe it!  Like it kicked back in the opposite direction ?

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