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Originally Posted By: webfors Is the conclusion that no oil type/viscosity would have prevented this? That is my guess. For the next 25,000kms I will only run 20w50 and see if there is any difference.

Originally Posted By: ZeeOSix Gear wear from lack of the oil's protection, or a material problem with the gears? Were you running oils not JASO MA approved? The oil's were all JASO approved. I believe it's a Suzuki problem. I have worked on Suzukie RMZ250 and RMZ450 motorcross bikes with the...

I came across this thread and figured it would be interesting to update it 5 years later. I ended up replacing 3rd, 4th and 5th gears in my transmission at about 27,000kms. I was getting a pronounced gear whine in those three gears. When I split the cases I found that the gear tooth faces had...

Originally Posted By: Reg# 43897 He's in Kamloops, in the Okanagon Valley as he stated - that's really a desert. Some awfully hot temps in the summer. I guess that you could experiemnt w/ various Shell Rotella offerings. You could try the synthetic 5w-40 T6 version as opposed to the...

Originally Posted By: eljefino How are the gears breaking? Any failure analysis? Are they "underwater" in oil or counting on it flinging? Mid-shift banging or just hard pulls already in gear? The issue is with 3rd gear, its driven in 3rd, 4th and 5th. No failure analysis has been done that I...

Hello, new to the board, first post. I am trying to sort out an oil choice for my DR650 dual purpose bike. It is a 650cc air cooled single, shared trans and engine oils. Capacity of 2.1L. But it has the SACS air cooled engine oil system similar to the GSXR's. This bike has had a very notchy...