Max, I had never thought of that aspect with regard to the seals causing rev increase.

I admittedly run them out mostly (ie when I hear the motor tone change as it begins to lean out i shut it off), but I do have a FC tilt a cut that will absolutely rev it guts out before dying.

As it is a mongrel to start, I think I will pull the seals


Edit - Max answered While I was typing

MF, I think Max correctly analysed the code speedy posted 453008044 - means 45th week of 1983. Which started Nov 7 1983

Last edited by Tyler; 11/01/22 10:17 PM.