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Discussion Starter · #1 ·
So my friend has a 2007 mxz 500ss, last season he had new pistons and rings installed in the sled by a local home mechanic, as he was doing the break in cycles and driving It around within the first 2 hours the head of the bolt on the bottom gear inside the chain case sheered off and cracked his case and he ended up having to get a new case , tensioner , etc. He had just had all that installed and started up the sled for the first time sense last season , and the sled isn’t working right , not much power , he had replaced both the plugs with 2 br9ecs , they both have spark but sled is only working on one cylinder as you can take the left plug out and it will start but if you take the right plug out it won’t start , leaves me to think the sled is only working on the right side cylinder , anybody have any help or suggestions? Haven’t done a compression test yet.
 
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