[apex 100 rebuild] - ATV Riders Forums - Honda, Yamaha, Suzuki, Kawasaki, Polaris, CanAm, Arctic Cat, Kymco ATVs

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apex 100 rebuild
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Posted by: lilvina00

just blew an apex. dont know how bad yet. anyone know the best place to order parts. hetricks and westcoast, apex are the only places I know

Posted by: mini racer #39

billy holt at wrh racing

Posted by: lilvina00

Thank you I will see what they can do for me. going to try and tear into it monday and see what exactly happened. thanks again for the info

Posted by: bignasty

billy does good work, also shawn at snyder motorsports, and tommy alley at TA Porting also do great work.

Posted by: lilvina00

tore it down. blew a hole in the piston about the size of a quarter, anyone have any ideas what might have caused this

Posted by: riding4fun

Definitely running lean. What did your spark plug look like?

Posted by: lilvina00

piston and plug was light brown no oil at all on them. the antifreeze had turned black what causes that?

Posted by: aaamx

sounds like it ran hot and melted the o-ring. how did they look? bc if the color of the plug was good it may have been to high of compression caused by the water

Posted by: lilvina00

thanks for the reply. broke the engine down and found the water pump had broke all the fins off and let it get to hot causing all my problems. going strong again