I am posting this for a friend, I don't have access to the serial numbers for this engine. So......if one of the more earned Yamaha authorities
could do a visual "best guess" the year or model number of this engine, I would surely appreciate it!
Whats left of the old decal reads "precision...
John,
The pulley measures approx 6 3/4", it is keyed, with set screws, the pump is bronze, no play in the shaft, still feels sort of like "newish". Let me know if you need better shots.