OK this is my first post. I just picked up a 1989 cruiser in really great shape. I am super excited about it. Great for exploring SEAK with the family. a big step up from my 17' westcoaster. It came with a 92 Yamaha 115 v4 which runs great ( i hit 35 mph at ~ 5200 rpm and it was still not WOT!!!!!!) but lacks the great MPG that CD are know for and i have to mix gas. I have not taking it out to far yet but the previous owner indicated that he got 2.25 to 3 mpg. I have a line on good deal on mid 2000 Honda 115. I think this OB would significantly improve my MPG and range but it is the heaviest of the 115(~500#). Can my 89 cruiser handle that much weight on the transom? can I move weight forward ( batteries and saddle tanks) to compensate for all that weight back there. If not what are some ways to improve efficiency with the Yamaha. right now it is running an aluminum 13.25 x17 prop. I was thinking of a ss 13.25 by 19? thanks in advance for your input.
Honda 115 on a 89 CD22
- Thread starter tbag
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tbag":28ba3s8n said:OK this is my first post. I just picked up a 1989 cruiser in really great shape. I am super excited about it. Great for exploring SEAK with the family. a big step up from my 17' westcoaster. It came with a 92 Yamaha 115 v4 which runs great ( i hit 35 mph at ~ 5200 rpm and it was still not WOT!!!!!!) but lacks the great MPG that CD are know for and i have to mix gas. I have not taking it out to far yet but the previous owner indicated that he got 2.25 to 3 mpg. I have a line on good deal on mid 2000 Honda 115. I think this OB would significantly improve my MPG and range but it is the heaviest of the 115(~500#).
Can my 89 cruiser handle that much weight on the transom? Yes, the 90 hp 4-strokes usually weigh about 470 lbs, plus 75-110 lbs for a kicker!
Can I move weight forward ( batteries and saddle tanks) to compensate for all that weight back there. Yes, that would help. Trim tabs and a Permatrim would also help adjust running angle and time to plane.
If not what are some ways to improve efficiency with the Yamaha. BACK OFF on the THROTTLE!Run at Displacement Speed here and there ! :lol:
Right now it is running an aluminum 13.25 x17 prop. I was thinking of a ss 13.25 by 19? A SS prop would be more efficient (less drag), but if you're getting 5200 at near WOT, you don't probably need more pitch, maybe even less.
Thanks in advance for your input.
Joe. :teeth :thup
Sea Wolf":2bbobntr said:
I can't answer tbag's question, but aren't most of the 90hp 4-strokes a bit lighter than 470#? I may be off, what I remember when I was shopping, the heaviest single 90 on a 22 was the (slightly) older Suzuki 90hp, which I think was 416# (that may be dry, but still). My Yamaha 80 is specified to be 379# (dry, I believe), and I thought most of the typical engines were under 400# as well, with the Suzuki being "the big 90."
I agree that with the typical 8-10hp kicker, most boats with a single 90 would be up around 500# - I just thought that number for a 90 alone was around 100# high. But then perhaps tbag would have a kicker too, and if so end up around or over 600#? (Again, not sure if that is okay or not, as I don't have enough 22 experience to know.)
tbag":1lmdnras said:
A 20" 130 is 478 lbs compared to 360 or so for the 90 I would do it in a heartbeat & not worry about the extra 100 lbs. My 22 had a 115 yamaha for lots of years W/ 2batt's & kicker & two 24gal fuel tanks & downriggers all in the verry back never a concern. :lol:
Have a good one!!
OK after a little more time on the water i have more data to suggest i am under proped. i got to 6000rpm doing ~ 35mph for just a second (cause the kid and wife where on board) and still had some throttle to go. full tanks and 2.5 people on board. not too much weight. Do you think I can go to a 13.25x19?
potter water
New member
Keep the throttle down. 35 mph is probably too fast to run the CD in my opinion. Having the skinnier prop helps get up on plane, but no one will say to do WOT once on plane for any length of time. But, if you have the money to dink around with props, then by all means, you can experiment till you find the sweet spot. Oh, that sweet spot you found will only be sweet for precisely repeated loads, seas, winds, trim, air temperature, and so on.
Sounds like you have a fine boat though. But adjusting the operating practices of the captain will do way more for your boating economy, safety, and longevity of equipment than trimming the prop or changing engines.
If you change engines for economy and performance though, shouldn't you go to EFI? Isn't the 2000 Honda a carb model? Seems there is a real measurable improvement with EFI engines. I observe that, but I'm no expert.
Sounds like you have a fine boat though. But adjusting the operating practices of the captain will do way more for your boating economy, safety, and longevity of equipment than trimming the prop or changing engines.
If you change engines for economy and performance though, shouldn't you go to EFI? Isn't the 2000 Honda a carb model? Seems there is a real measurable improvement with EFI engines. I observe that, but I'm no expert.
potter water
New member
Oh, I misread. It is a mid 2000's engine. But still, EFI is good if hat engine has it.
A
Anonymous
Guest
The C-Dory 22 Owners manual says max 500lbs on the transom
The Honda 115 is close to 500Lbs 2350cc
Yamaha 115 is 429 lbs 1750cc
Yamaha 90 is 369 lbs 1600cc
a kicker 8/10 hp is 100 lbs.
with a kicker and a 115 Honda it will sit low in the stern and be over the recommended weight in the owners manual. But probably really nice to drive with that displacement 2.35 litre engine. You'd be able to cruise at 25 mph at 4000 rpm is my guess, which is much quieter than those of us with a 90 at 4500-5000 rpm at 20 mph.
It the transom can hold it, it'd be a quiet, fuel efficient ride.
My $0.02 worth...
The Honda 115 is close to 500Lbs 2350cc
Yamaha 115 is 429 lbs 1750cc
Yamaha 90 is 369 lbs 1600cc
a kicker 8/10 hp is 100 lbs.
with a kicker and a 115 Honda it will sit low in the stern and be over the recommended weight in the owners manual. But probably really nice to drive with that displacement 2.35 litre engine. You'd be able to cruise at 25 mph at 4000 rpm is my guess, which is much quieter than those of us with a 90 at 4500-5000 rpm at 20 mph.
It the transom can hold it, it'd be a quiet, fuel efficient ride.
My $0.02 worth...