Have the t63544m.
Can't seem to get the timing mark "F"
To line up with the circlip @ spec
Lines up @ 1.250 BTDC
Should be .485 BTDC
It did run pretty good but always smoked
If I reposition the gear I can get it to line up
But when I go back to TDC the slots in the pump drive don't line up anymore.
Not sure what my next move is.