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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
144 Exhaust Port Bridge
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[QUOTE="AARONA, post: 721514, member: 41125"] I have an '02 kx144 done by MaxPower. I keep getting flat spots from the exhaust bridge on the exit side of the piston. My piston (when new) was gold colored on top and the sides are coated with some black stuff, which wears off upon installation just about. They also put the same gold colored coating on the head. It is flaking off from the inside of the combustion chamber and now allows combustion gasses to work their way up through the head bolts, which causes a sticky ugly mess. I just cleaned it up as good as I could and replaced the head gasket, hopefully it will stop leaking. Yet to ride (its -25F today). Have not had the bike ported. The bike does have more low mid power, and is great for my wife to ride (its her race bike). I will keep bikes stock in the future, that seems to be the most reliable route as a whole, and reliability is more important to me at this point. Always a trade out I guess. Hoping the new KXF will be reliable. [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
144 Exhaust Port Bridge
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