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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
DT120c 1976
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[QUOTE="Mad Norris, post: 1359963, member: 106417"] If there are 2 pipes coming from the oil pump (one to the barrel, and one to the crankcase), then you should check to see if the pump is working, and use that instead of premix. The pipe to the crankcase lubricates the left hand main bearing, but it won't get enough oil if you use premix. There's a good chance that the pump is still working, as many people disconnected oil pumps needlessly (just in case) and ended up having to replace the LH main bearing instead. [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
DT120c 1976
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