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Honda MX & Off-Road Dirt Bikes
CR125 Top End Rebuild, NEED HELP!
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[QUOTE="rmc_olderthandirt, post: 1393878, member: 68872"] Water + oil + vigorous mixing (ie, gears) = what looks like chocolate milk. I suspect that there was a reason that this bike was only $250. In a two stroke there are very limited number of places where oil and water get close to each other. The most likely culprit is the seal on the water pump, or perhaps the water pump bearings are bad as well. I suspect that the leaking oil is because you are missing several bolts that hold the case cover on. It is possible that a previous owner broke/stripped the bolts trying to tighten the cover down to stop the oil leak. You will need to remove the cover, extract any broken bolts, heli-coil any stripped threads and re-assemble with a new gasket. That cover needs to come off to replace your kick start return spring anyway. When you have the cover off inspect the mating surfaces and make sure there isn't a gouge where someone used a screwdriver to pry the case cover off. As for the need to "bump start". No kick start return spring and really hard to start, hmmm, not a bike I would want to ride farther than I was willing to walk. You could have weak spark, poor carburetor jetting, air leaks, bad reed valves, low compression, or a partially fouled spark plug. I would start with a new plug as that is the easiest and it will also allow you to get a reading on the carburetor jetting. Clutch Issue: Idles OK in neutral, won't idle in gear with clutch in, difficult to push with engine off and in gear with clutch pulled. Sounds fairly normal to me. This is referred to as "clutch drag" and to some degree all dirt bikes do this. There are issues with the clutch that can make it a LOT worse but it is possible that your bike is in the "normal" range. Rod [/QUOTE]
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Dirt Bike Discussions By Brand
Honda MX & Off-Road Dirt Bikes
CR125 Top End Rebuild, NEED HELP!
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