Yamaha F70 on a 20 MA?

[gofastsandman]

Originally Posted by DonV

It's a 1000cc motorcycle engine that works great on the 16', to maybe an 18' "technical skiff" that weigh nothing......on a 20' SeaCraft get real!!

Too blunt? Sorry, Yamaha is known for pushing the low end of the 10% variance on their engines' HP ratings!

True dat.

The old OMC 150 eagle series was a bit of a middle finger
to Merc as it turned 168 at the prop.

I can hold plane at 3k and 12 mph not kts.

My `89 Slacker 20 hits 43 wot as propped.
Not for wot.

The Seafari has a bit more weight forward.

My CG plate lists 235 max HP and the transom
is 2 3/8 thick from the factory.