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Dirt Bike Mods & Maintenance
KX60 need help assembling motor
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[QUOTE="Baker1, post: 1081241, member: 69626"] Hello. I pulled the motor from my daughter's KX60, pulled the head, and discovered that the big end bearing was toast. So I split the cases. The cylinder is okay. Parts ordered and en route - piston and rings and pin and clip; complete crank assy; crank bearings and seals; all other oil seals (shift shaft, output, kick starter, water pump); gaskets. By the way - [URL=http://www.mrcycles.com]www.mrcycles.com [/URL] had better prices on OEM parts than I could find on aftermarket parts anywhere! Very good prices! I did not remove the clutch or starter assy or tranny from the right side case. I have 6 questions: 1 - I don't have a press; what's the best way to get the main bearings on the crank and then seated properly in the cases? Seat bearings in cases first, and then tap the cases together over the crank? Or put bearings on the crank first, and then make cases together over the whole assy? 2 - Does the hot bearing onto cold crank or cold bearing into hot case trick work? What oven temp to use to avoid oil seal damage? 3 - what assembly lube to use in a 2-stroke lower end? Just oil, or??? 4 - what tricks to use to get the tranny shafts properly seated in their bearings at the same time as getting the cases together around the crank? Any tricks here, or just tapping and loving? 5 - I was very careful to watch the tranny shafts as the cases finally came apart. No shims or washers anywhere on the left side of the shafts or in the left case. Is that normal? 6 - Just for fun, I twisted the shiftdrum around some to watch the gears changing. It was fun. Then I realized that I had no idea which way was neutral or which way to turn to get it. That was funny also, in an idiot sort of way. :coocoo: So I just hunted around until I found neutral again. Am I okay here, or did i bugger some special alignment between shift forks and drum and neutral? Okay that's it! I have yamalube4 for case glue and 2-stroke oil for rings-piston-cyclinder lube. Any tips you might want to throw my way would be very appreciated! :cool: [/QUOTE]
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KX60 need help assembling motor
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