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  18' Outrage with 115 Yamaha?

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Author Topic:   18' Outrage with 115 Yamaha?
scottl1 posted 04-14-2004 09:26 AM ET (US)   Profile for scottl1   Send Email to scottl1  
Hi Gentlemen,

I considering picking up an í89- 18í Outrage itís power is a 1998, 115 Yamaha.
I donít see this combination often, would that be because the performance is less then great?
Has anyone had a similar combination? Is the engine to small for this boat, will it get above 30mph? Is there any adverse affect on the engine over time due to its smaller size?
Thanks much for help.

Regards,
Scott

LHG posted 04-14-2004 10:31 AM ET (US)     Profile for LHG    
The boat should run fine with that engine, about 40 mph top end. A friend had same boat with Yamaha 130, which is same V-4 block, and it would do about 42.
2ndWhaler posted 04-14-2004 06:10 PM ET (US)     Profile for 2ndWhaler  Send Email to 2ndWhaler     
Just did what you are contemplating. My 1989 18 Outrage had a 1989 130 Yamaha on it which did 42 mph. My new 4-stroke 115 Yamaha does 43 mph with a full tank of fuel and me onboard. I was surprised.
rmart posted 04-14-2004 09:17 PM ET (US)     Profile for rmart  Send Email to rmart     
I have the exact same set-up on my 1987 18'Outrage that you are considering with a Yamaha 115hp. I purchased the boat in September 2002 with a 2001 trailer for $7,600.00 The boat was in poor cosmetic condition, but structurally and mechanically was and has been a gem.

After a lot of sanding, compounding, waxing, and other manual work and purchasing OEM rod cushions from Hall's, along with new boots for my forward shelter and bimini/flytop and a new stern seat from Art's the boat now looks and runs great.

My Yamaha 115hp is a 1987 and runs as strong as can be. The engine had a new lower unit installed by prior owner which happens to be a counter-rotation (lefty). Other than a carb re-buid that I had done when I purchased the boat, I don't have any complaints and haven't had any problems with the engine or this setup on my 18'. I think that my use of Techron and Valvtech De-Carb since the carb-rebuild has helped avoid further gumming or other problems.

My top-end is 40-41 mph with perfect water/wind conditions and 37+ in any condition.

I run a 13 1/4 x 17 stainless Stiletto (as stated above the engine happens to be a left hand rotation). If you want any further details about the setup of the 18' Outrage feel free to drop me an e-mail I would be glad to return the favor that so many other members have given me.

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