XT Tenere metal particles in oil filter
Hi EZRA HARDY,
You have the classic early XT600 engine failure. Smart of you to find it, many don't.
It is the failure of 5th gear which provides the particles that destroy the oil pump leading to loss of oil pressure with eventual seizing of the piston in the cylinder.
Yamaha worked on this problem over the years but only with the 1st 660 3YF models did they make a wider gear that was also fitted to 4PT 600s.
The last good gears 2JT if you can find them. Don't bother with anything else, will just cost you another oil pump, unless someone else has a good solution i don't know about.
I fitted 3YF gears to a 2KF but it needs careful machining. They are availabe and it is pretty well covered here if you search.
Best,
p
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