Question about Yamaha DT 125 R Motorcycles
I have a rxs 100 but it back fires and stops power as soon as i get over 30mph/gets hot i have changed carb, coil, coil lead, spark plug and cap i have also had the garage check the wood rough key but also rattles at high revs
With the rattle, i would true the crank. Was there ever an abrupt stop (chain came off and wedged, locked up back tire, etc)? That would indicate crank.
If it had points i'd say they were floating.
Sometimes a plugged exhaust will limit power at a certain rpm, but not explain the rattle (i'm imagining vibration, but it could be something benign). Good luck.
Posted on Jun 25, 2009
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Posted on Jan 02, 2017
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