Belt drive variators are dependant on the width of the belt for proper functioning.
I tried to find this out twice so far... and can't find what the correct width is supposed to be.
It would be in a service manual... but I don't have one.
So can anybody with a PA-50 measure their belt width for me and let me know how wide their belt is ?? (and how many miles the Odo shows ?)
or if you have a service manual... it would be great if you could look it up for me... (78 PA-50I)... PA50II is probably the same ??
(just lay a tape measure or ruler or scale across it and lean over and try to read an accurate measurement)
Many snowmobiles have a 'width diagram' sticker under their hood... so you juat take the belt and lay it on the diagram and see if it is 'under width'... then you need a new belt.
A belt worn too narrow takes speed off the top end.