My valves aren't as bad as I figured they would be but I will be buying shims .
TB residue .... I'm Kinda curious if it is from the crank case vent .
ONLY because I for one have had issues with high oil level .
So far every oil I have used has expanded on me to an over full condition when hot . Even with Motul .
I will try to use Motorex this season since I now am able to buy it . New dealer near me . I would like to find an oil I could pick up on the road tho .
With the numbers that mention it here I'm not real concerned I'll just clean them (TB) during major service .
It is strange to me that only my rear TB is dirty