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Honda MX & Off-Road Dirt Bikes
Honda XR bogs when revved
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[QUOTE="Ol'89r, post: 806542, member: 17212"] RMX. The description of your problem sounds very much like worn cam journals.. On those models the cam runs in an aluminum journal that is part of the head. If the journals become worn the cam can move around in the journals. Aside from the obvious, the main problem with this is maintaining a point gap. Since the point cam is attached to the end of the camshaft, the point gap can change at different rpm levels. The way to check it is to put the engine on tdc on the compression stroke. Piston will be at top and both valves will be closed. Then take a pair of vice grips and clamp them on the 6mm bolt on the point cam end of the camshaft. Try moving the cam up and down. There should be no movement. If the cam moves up and down noticibily the journals are worn. If the cam is tight try setting your point gap at .012. Good luck. [/QUOTE]
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Dirt Bike Discussions By Brand
Honda MX & Off-Road Dirt Bikes
Honda XR bogs when revved
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