I run a ‘99 21’ Wellcraft CC (it’s a big 21’) that has a '99 60 degree carbed Johnson 150hp outboard. The motor handles the boat well except in a following or quartering sea. This is where it really seems to labor the 150. Boat is rated for a 225. Been thinking of upgrading to a 200 or 225. Not wanting to spend $20k for a new outboard, my search is for an OX66, E-Tec, or even possibly an HPDI Yamaha. My question is about fuel burn. My Johnson 150 is very dependable but sure is thirsty. Boat holds about 75 gallons and I’ve run through most of that before on a long 45 mile run out (90 mile round trip out and back). My question is how much more fuel efficient a larger fuel injected outboard would be? My thinking is that I wouldn’t labor a larger fuel injected outboard as bad and would gain some range on fuel efficiencies. Am I way out in left field?
I can’t see spending close $20k on my current boat for a new motor. Seems there are a lot of quality OX66 Yamahas available since people are upgrading to 4 strokes. Thanks.
Being superstitious is bad luck.
Time and tide wait for no man.
I have a 150 HP Yamaha four stroke on a 22 ft. CC. I get between 3 and 4 MPG at 26 to 28 MPH depending on the load. I can crank it up to 30 to 32 and still get 3 MPG with two men plus ice, bait, etc. It is very seldom the seas will let me run faster than 30 MPH in a 22 ft. boat.
You will see a little better fuel mileage, as going with an injected motor. But it will not compare to a four stroke.
I have both a 225 and a 150 ox66 for sale right now. Both 2000 or 2001. Both motors less then $4k, and each have around 800 hours on them.
GOING FROM A CARBED JOHNSON 150 TO A 200-225 OX66, YOU ARENT GOING TO SEE MUCH OF A CHANGE IN FUEL BURN.
IF YOU CHANGE TO AN ETEC (I REALLY HOPE YOU DONT DO THAT) OR AN HPDI, YOUR FUEL BURN WILL BE ALMOST HALF WHAT YOU ARE CURRRENTLY BURNING
ALL OF THE DIRECT INJECTED 2 STROKE MOTORS HAVE COMPARABLE FUEL BURNS TO A 4 STROKE.