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Canadian Daves JustKDX
Scared of Wiseco - long
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[QUOTE="WoodsRider, post: 371137, member: 16545"] I've been using Wiseco pistons for close to 10 years in various Japanese and European bikes I've owned, and have never experienced a catastrophic failure. Wiseco is the factory piston for GasGas. I have seen failures where the circlip that holds the piston pin in place has popped out and damaged the cylinder. However this problem is associated with improper installation of circlips as opposed to a defective piston. I've got nothing against stock pistons either, except for the price. The stock KDX220 pistons do have some issues with thin walls which results in a cracked piston skirt. To maximize piston life do the proper maintenance. Replace the rings, annually for the Sunday trail rider and at least every six months for the hard-core racer. Replace the entire piston assembly (piston, rings, piston pin, circlips and pin bearing) after it's second set of rings. Most piston failures I have seen were the result of something else like too lean of jetting, lack of lubrication or poor air filtration. Always follow the piston manufacturers guidelines for "breaking-in" a new piston and seating the rings. [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Scared of Wiseco - long
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