Yamaha Fat Shaft Conversion

[WWDIII]

Anybody coverted a Yamaha to a Merc fat prop shaft. I did a few seraches and didnt find much.

Yamaha skinny prop shafts bend real easy.


What does it take who does it. I'm guessing Hydro Tech, but not sure.

Somebody told me it could be done, about all I know.

Thanks, Billy

[spider1]

Billy give HT a call they were doing it and I guess they still are.

[21XDC]

I'm not sure they are holding up...

[jim4596]

a merc sportmaster is the only fix. trust me, i know
HT doesnt do them anymore.
Someone correct me if im wrong.

[WWDIII]

jim,

your right, I called HT today and they don't do them anymore. They shot me stright and told me they didnt hold up. I'd have to do the sportmaster conversion and its not cheap.

I could dang near buy a sportmaster with a black motor on top for the same money.

[jim4596]

I bought a used sportmaster for $3k. then sell the yamaha lower unit to buy the adapter plate.

[ProV4Me]

Jim,

Could you give us more info about putting the sportmaster on a Yamaha 2.6?

Thankyou

[spider1]

I bought a new sportmaster sent it to HT and they cut and welded the drive shaft and shift shaft so they would fit the yamaha plus they make an adaptor plate to go between the motor and lower unit.
About 2100 plus the cost of a sportmaster. You could put a coned torque master on also.