RE: OS 90 4 cycle repair
Timing the OS Max 61-FS.
Thanks you w8ye very much for the information about the cam timing position for the OS Max 61-FS.
I had a loook at the prop driver and front bearing housing for timing marks and was not sure of what I found. There appears to be a casting flash at the top and bottom of the bearing housing and possible plier marks on the prop driver.
I wondered therfore if I should use piston at top dead centre for the cam timing position.
old git aka John L.