Yamaha L4 3.0, 21', fuel consumption???

DianneB

Petty Officer 1st Class
Joined
Feb 8, 2010
Messages
303
I have a 1987 21' Sylvan bowrider with a Yamaha L4 3.0 stern drive and I have not been able to find any approximate figures for fuel consumption.

I know fuel consumption will vary widely but I would like to have some rough idea what to expect.

Anybody else running one?

D.
 

ricovw

Petty Officer 2nd Class
Joined
Sep 2, 2009
Messages
167
Re: Yamaha L4 3.0, 21', fuel consumption???

i have the same set up, except on a 17.5 ft boat. I cant tell you what you fuel economy will be like because of the size difference in the boats. The economy would be the same as any other boat similar to yours with a 4 cyl 3.0 in it.
 

Snobike Mike

Petty Officer 1st Class
Joined
Sep 30, 2009
Messages
363
Re: Yamaha L4 3.0, 21', fuel consumption???

21 Footer with a 3.0L in it? Wow that has got to be underpowered......

My bet is I'll get much better mileage with my 21 footer with a 5.7 Gxi.

I'm at around 4.5+ mpg at cruise, 2.4 mpg at WOT. I would expect at least 1 mpg worse with your setup.

Cheers.
 
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