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Honda MX & Off-Road Dirt Bikes
1990 xr100 smokes and bogs after new top end
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[QUOTE="QKENUF4U, post: 986916, member: 64971"] from the sounds of it buy a GOOD used head and start over. sounds like you have MULITPLE PROBLEMS that should have been taken care of but your dad didnt know any better. get a service manual and start over. valve stem seals (if not replaced) valves (bent ?) valve seats (did ya lap the valves in) rings (did you bore/hone the cylinder to the right size and make sure you had the right ring end gap ?) to much oil in crankcase ? cam/rocker arms should have been replaced from the sounds of it head if it was actually grooved/wallowed out etc.. good luck [/QUOTE]
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Dirt Bike Discussions By Brand
Honda MX & Off-Road Dirt Bikes
1990 xr100 smokes and bogs after new top end
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