Discussion Starter · #1 ·
Last night we were looking at changing the belts on a 749s and noticed (or didn't notice) the usual timing marks on the case and heads. The doubley weird thing is that going through the complete cycle the marks on the pulleys never seemed to line up in a logical way. Does anyone have the service manual or access to one that can shed some light on this? The assumption was to line them up with the top of the head but that proved futile as well or this thing is totally wacked which I don't think is the case.