Thanks, found them, drained and no difference. Have interesting problem. Pull a plug on one side and machine dies. Compression 124 on both, switched plugs and wire no difference, switched carbs no difference. Good spark, good compression, getting fuel and air. What am I missing?.
There was gas /oil in the exhaust, thought that it was best to drain crankcase (as said above by Stormrider). Sync'ed the carbs, ran a bit better, still dies when pulling mag side spark plug. Sprayed around pto seal, no noticeable increase in RPM or perhaps a small increase?. Could there be lower piston (skirt)damage causing this? Any suggestions. [?] Thanks Cam
Just had it running with air box off, and through the carb on the cylinder not running (or running poorly) we are getting blow back and poor suction into the crankcase. Yet again that cylinder has 124 ft lb compression.[?][?]
My 99 500 XC acted similar after 3 different dealers and rebuilt carbs, new jugs, crank seal, most of the electrical components it turned out to be a bad crank pin......
It was under warranty and the thing has run awesome since.
Well, we pulled the head, pitted on the bad side, piston top not bad, a few small marks. Next we pulled the cylinder, it didn't look too bad considering we had found the oil line broken and just hanging together. Then we found out what I expect is the reason for the blow back, one of the reed valves was broken right off. Didn't see any sign of it, assume it has gone out the exhaust? Would it have pitted up the head but not the piston? Thanks Cam
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