80HP 2 stroke (3Cylinder)

I have spent the winter reboring andrenovating my 1987 80HP 2 stroke, i have had a new lube oil pumpsent from yampower but it has 3 screw holes and an extra fitting plate, has anyone fitted one of these, i cant seem to get info from Yam about this modification.

[boats.net]

I don't have a listing on a 1987 80hp oil jection model but if same as 90hp block then sometimes have to file a little bit of the block down to get new style oil pump to fit.

yam 80 oilpump

to boats.net
thanks for your reply i can confirm that the 75hp up to the 90hp are all the same block, pistons etc, my number is 80AETO, 60HO L 452071 H, would i be correct in thinking the little adapter plate screws on to the original hole with the countersunk screw and the the pump screwsthrough the plate onto the remianing original hole and onto the adapter plate with the supplied stud, but there is also a little round sort of spacer with a seal, it doesnt seem to fit anywhere, can you help?