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Discussion Starter #1
I have a 2006 Predator 50 that I recently bought for my son. It was running ok, but would stall every once in a while for no reason. Last weekend we were out riding, I was right behind him on my bike and all of a sudden it just died and would not restart. Got it back home and started checking things out, once I got to the compression check I knew I had a problem. I popped off the head to look insided and there is a 1/8" hole in the center of the piston. So now I gotta put a new piston in, but want to make sure it doesn't happen again. So what should I check for? I have been reading that it might be either a lean condition or advanced timing, but how can I tell?
Thanks for any help!
 

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Oil injector not working or out of oil? Too hot a spark plug? Running too lean? Or a combination of all the above will burn a hole in a 2 stroke piston.
 

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TIP. damage above ring, fuel problem. damage below ring, oiling problem.

it is lean. fuel flow restiction, jets plugged, sucking air somewhere.
 

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Welcome to the board!:med:
 

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Discussion Starter #5
ok, well once I get it all apart I will inspect everything and make sure there is not a leak or anything. Hopefully I can track down the culprit and get it fixed.
Thanks
 
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