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View Full Version : Prop question: I have a Merc SS prop - need a Yamaha



Hokiepoq
09-06-2009, 10:43 PM
To make a long story short, my boat with a 1987 115hp Mercury sank and I came across a deal too good to pass up on a similar boat with a 1992 115hp Yamaha. I took the Yamaha boat out today and I think I need a better hole shot. I have a really nice 13 X 19 stainless steel prop from the Mercury. The Yamaha has a not-as-nice 21 pitch ("21K"), I assume 13" and change aluminum prop that's seen better days. I would love to have the 13 X 19 stainless steel on the Yamaha but it's for the Merc. Is there a way to change it without costing an arm and a leg? Would a prop shop take an exchange? Try to sell it and hope to get enough money to get a stainless steel one? Suggestions?

Thanks in advance!

gw204
09-07-2009, 10:55 PM
Check to see if the Merc prop will fit on the Yamaha prop shaft. If the splines line up, you just need to get a special thrust washer that Merc makes to allow their props to fit Yamaha motors...I think. There might be some special requirements on the nut end too, but I can't remember.

rj
09-08-2009, 07:23 AM
it will fit , same shaft diameter & splines ,but you will probably need to change the thrust washer, try it & see how it fits & runs