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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
completly ripped it apart.
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[QUOTE="dirt bike dave, post: 1330568, member: 18302"] When I did mine five years or so ago, I think I paid about $165 for one crankcase half, $30 for the crank bearing for the other side, about $70 for full gasket set, $120 for a new piston/top end kit, $70 for a complete gasket set, and I think around $160? for the crankshaft assembly. Add another $50 for a few other things (one power valve shaft bearing and a shift shaft seal). These were all OEM Honda parts. I did most of the dis-assembly, but had a little trouble getting the cases split, so I paid a small shop a few hours time to complete the dis-assembly and put the motor back together. Mine blew when I started to coast on a long road after a miles of top speed wide open throttle, trying to keep up with riders with wide ratio gear boxes. The hot motor without any cooling fuel or lubricating oil quickly caused terminal failure of the big end bearing. Luckily there was no damage to the cylinder or head. I've heard of several other CR's blowing up the bottom end in similar fashion after coasting without pulling the clutch in after a hard run. Those motors are usually very reliable. [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
completly ripped it apart.
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