I was told not to do any wheeling on my 2004 450 YFZ because the oil pickup is disigned incorrectly. The mechanic said that the top will starve of oil. Steep dune climbing is also not recommended. We only ride dunes and wheelie alot. My friend's big end disintegrated on his 450 2004.
I see some people write about an oil mod? Does this oil mod help for wheeling?
