I was changing my fluids and cleaned out my tappet screen as well. Slotted plug was a little loose with tool so bought a new one from the dealer(part #26263-80) to keep it nice and tight with the tool for easy removal. Put plug back in (by hand at first) then with torque wrench. Was waiting for 90-120 in-lbs when the top of the plug sheared off!!! Looked at digital torque wrench and yes, it was set at ft-lbs. But still, I didn't crank on it very hard. Thinking it was a weak part. Anyway, tried to back it out with sheared top (see if it would "grab" it and back it out). No luck. Looking for ideas or help because I know I don't want a bunch of metal shavings floating around in this area. I didn't gouge the crank threads, just popped the top of the plug off. Should I stop and take her in or do you have any suggestions for me to try? Thanks for the help and you can bet I won't make that mistake with my torque wrench again.