feedback on Yamaha

ttles714

Well-Known Member
Joined
Jun 6, 2009
Messages
202
Reaction score
16
Points
18
Location
NJ
Looking at 2 boats .. same model ... one is a 2001 with twin ox66 250's .. the other is a 2004 with 2008 250 4 stroke yam. ... the later has fly by wire ... 4 strokes 700 hours ...ox66's 400 hours .... aside from the boats, any one have any feelings about the motors ??? I am skeptical of the newer for strokes and the electronic controls ..
Edit/Delete Message
 

Doc Stressor

Well-Known Member
Joined
Nov 13, 2009
Messages
1,177
Reaction score
288
Points
83
Location
Homosassa, FL
Model
Seafarer
Both the ox66 and F250 3.3 liter are solid engines. The 2 strokes will of course burn more fuel. Figure at least 30% more at cruise.

It's always a good idea have any 3.3 L Yamaha scoped in order to check for exhaust mid section corrosion if it has been used in saltwater. Only a few F250 have had that problem however. I last had mine scoped at 700 hr and it was fine.

Fly by wire has also been pretty bullet proof. So don't worry about it.
 

seasick

Well-Known Member
Joined
Aug 19, 2008
Messages
9,073
Reaction score
1,293
Points
113
Location
NYC
ttles714 said:
Looking at 2 boats .. same model ... one is a 2001 with twin ox66 250's .. the other is a 2004 with 2008 250 4 stroke yam. ... the later has fly by wire ... 4 strokes 700 hours ...ox66's 400 hours .... aside from the boats, any one have any feelings about the motors ??? I am skeptical of the newer for strokes and the electronic controls ..
Edit/Delete Message
In general assuming both boats and motors were well cared for, I would prefer the 4 strokes. That said, they weight more than the SX motors and that might be an issue for your hull which I don't think you specified.
I also think that by 2008 model year the exhaust corrosion issue was mostly a non issue although I am told by a surveyor that his opinion is that any model year Yami 4S can develop the problem. Scoping is a good idea but it is not foolproof.