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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
head mods
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[QUOTE="EricGorr, post: 705395, member: 19611"] Mikie, its likely that the piston will contact the head if you reduce the squish clearance .020 inch. The trouble with older engines are variables like worn or stretched rods and bearing freeplay. A quick and easy way to make a modern dirt bike pump gas useable is to use 2-3 base gaskets. That will increase the squish clearance and reduce the compression ratio. Two gaskets for 80-125cc and three gaskets for a 200-500. Use some type of copper-coat gasket adhesive on both sides of all of the gaskets to reduce the chance of leakage. [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
head mods
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