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Dirt Bike Discussions By Brand
Suzuki MX & Off-Road Dirt Bikes
92 RM 125 Problem...
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[QUOTE="RM_guy, post: 1010313, member: 20652"] I'll bet your power valve isn't opening. There is a small set screw that holds the actuator to the shaft that can loosen up and let the shaft spin. You'll have to pull the cylinder to get to the access cover (just above the exhaust port) to see it. Or, the actuator rod became disconnected from either the shaft or the governor (inside the clutch case). If you take off the side access cover (clutch side) and expose the actuator rod, turn the shaft with you fingers all the way and let go. You should hear the valves slamming back into place. If you don’t then the set screw is loose, letting the shaft spin. The valves could also be sticking. It could be a leaky crank seal too as Rodsrm400 said. Is your plug black? Bad reeds would affect low end and make it hard to start. They wouldn’t affect top end as bad as what you’re seeing. I wouldn’t expect jets either unless they are dirty. You said it ran great and then gradually deteriorated. Jetting won’t change over time. [/QUOTE]
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Dirt Bike Discussions By Brand
Suzuki MX & Off-Road Dirt Bikes
92 RM 125 Problem...
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