Question about Polaris ATV
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Posted on Jan 02, 2017
Did you change your spark plug? Just because you have good spark does not mean the plug is firing under compression or the porcelain is not cracked.
Posted on Mar 25, 2009
I had that problem with my polaris 500 scrambler. Did the exact same thing. I had to replace the float in the carburetor, Your may just be stuck but the float is very inexspensive
Posted on May 12, 2009
hi there it only starts to back fire when the engine is hot this points to incorect valve clearances os slightly damaged valve seats this is only oticable when the engine is hot due to heat expansion the clearancea would be an easy fix but to doo valve seats the cylinder head would have to be removed which is quite a big jo although i would try the valve clearances first unfortunatly i do not have the clearances but im sure i atv shop would tell you or if you have the manufacturers service repair manual it will te you in there hope this helps ben
Posted on Oct 12, 2009
SOURCE: polaris will not run
Seriously, guydaigle? The 300 Xpress is a two stroke. The problem is too much fuel. Start by checking and adjusting the carb. Look at the needle & seat, then the float level.
Posted on Nov 09, 2009
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