Question about Polaris 2005 Classic 550

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2005 polaris 550 classic left cylinder not firing

Left cylinder not firing, checked plugs, checked for fuel, checked for spark, and checked for compression by putting my thumb over the hole and felt the same as the right side. any suggestions

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Hopefully it's just the spark plug, take it out and check the gap and coloring, clean it and set the gap to the recommended gap, Or take note of the spark plug code and get a new one, check with the manufacturer or in your handbook that it is in fact the correct one.

Check the connections and lead, they do deteriorate over time, to find out if your on the right track, swap the leads over and see if the other cylinder dose the same thing. Swap the spark plug over from the other cylinder for process of elimination. So if it's still missing we know to check the pickups or cdi unit, there's a possibility its fuel, check the carburetor, is it a twin carb? If so, clean it buy taking the bowl of and draining out the fuel, you should do this occasionally anyway. Check the fuel filter while you're at it.
Good luck

Posted on Feb 10, 2014

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If the bike was sitting for a while then probably clogged jets...This is where stabil comes in handy or else drain the bike at the end of the season.

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