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[QUOTE="rmc_olderthandirt, post: 1336340, member: 68872"] Much more likely the rod (journal) bearing, not the crankshaft main bearings. I am pretty sure a RM 125 is a two stroke, hence there won't be a drain plug for the engine case, it would be for the transmission. With a two stroke the only oil in the crankcase is carried in with the gas. There will be a light coating of oil but there will not be any "pool" of oil. If you are not careful you can end up dumping some water down in the crankcase as you take the cylinder off. If that happens you will need to get it out before you reassemble. [/QUOTE]
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