Join Date: Feb 2019
Thanked 4 Times in 4 Posts
I've found numerous "wet clutch" oils that caused clutch slippage almost immediately, especially on bikes that have a pretty marginal clutch to start with. The couple times I tried Mobil 1 motorcycle oil it has universally caused the clutch to feel mushy and usually slip in top gear. On my Vmax it screwed up the one way starter clutch, about half the time it'd just freewheel. Switched back to rotella and the problem vanished.
I found on my 05 the clutch was a little mushy and I could make it slip flooring it in top gear even after adjusting it. The previous owner made a big stink about how he only ever used mobil 1. Hmmm. Drained that out put conventional Rotella in, and whaddya know the clutch slippage went away, and it's been about 10k miles since and no signs of it returning. Bike has about 25k on it now.