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I recently purchased an 87 Kawi JS550 standup. The Clymers manual doesnt list a lubrication for the crank besides the grease when putting it together. By searching forums I have learned that it runs on just the oil in the fuel mix. I have a really hard time believing this. As it is would be a major issue if i broke the thing trying, maybe someone else can comfirm this. My local Kawi dealers are also perplexed and dont want to reccomend anything due to liability. When i bought it it had water in the cylinders. I took the engine out and the head off. And dumped nothing out of the crank via the flywheel cover. should i just rebuild the whole thing or what. i really dont want to.
 

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The fuel air oil mixture goes through the intake under the pistons reatomizes in the cranckcase lubing everything with a gas air oil mixture then gets pulled up to the top of the piston where the spark plug explodes the fuel under compression. Or you can look up how a two cycle engine works online and get a picture. dirt bikes only get lower end oil in the tranny side of engine to lube the gears not the crank.
Hope this helps
 
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