Whaler Central - Boston Whaler Boat Information and Photos

Posted by Whalestales01966 on 08/12/12 - 8:04 AM

Finally bough my first Whaler. 1968 center console, solid hull, no engine. I want to put a fourstroke on it. (quiet / reliable / efficient) The original owner ran a 2 stroke yamaha 70 for 25 years and says it was perfect. I would like similar or more power but don't want to put too much weight/stress on the old boat which I hope to have for many years. Any suggestions?

Posted by Jeff on 08/12/12 - 8:08 AM

There are Direct Injected 2-Stroke outboards that are just as quiet / reliable / efficient as a FourStroke. They can be lighter as well. I personally would rig an Evinrude E-Tec 90hp Direct Injected 2-Stroke on that hull if I had to go with a new fuel injected motor.

Your Location will be a factor in your selection. Why, because your selection of a good, reliable and reputable dealer should be the first choice in your repowering. Then that directly influence you choice of motor brand.

Edited by Jeff on 08/12/12 - 8:12 AM

Posted by Whalestales01966 on 08/12/12 - 8:59 AM

Thank you. Do you know of a weight range that is best for that year? I see horsepower ranges but not weight. I read the article on this site but it looks to apply to Montauk and newer hulls. There is a good dealer near where I am going to use the boat. They have a used Honda 4 stroke but it looks huge. I am also interested in a 4 stroke because I don't want the issue of dealing with 2 stroke oil and would like to be able to park it in a garage rather than deal with winterizing. A friend recently repowered his 1980"s 20' Aquasport from a Yamaha 2 stroke 150 to a used Suzuki 4 stroke 115 which is what got me thinking about a 4 stroke. Completely different hull I know but a huge change for the better.

Posted by Buckda on 08/12/12 - 9:07 AM

1) you will still have to winterize a 4 stroke motor. In fact, winterizing motors is a strong income stream for marinas.
2) pretty much any 70 hp 4-stroke will be light enough for that hull
If the boat is in good shape, I don't think I'd worry too much about weight.

Posted by Joe Kriz on 08/12/12 - 10:47 AM

Whalestales01966 wrote:
I see horsepower ranges but not weight. I read the article on this site but it looks to apply to Montauk and newer hulls.

You must not have read the correct article here or didn't read the title.
"16'/17' Engine Choices/Weight"
This applies to all 16/17' hulls.
http://www.whalercentral.com/articles...ticle_id=5

1. Yamaha 70 hp 4 stroke = 257 pounds
2. E-Tec 90 2 stroke (if you want or need more power) = 320 pounds

Edited by Joe Kriz on 08/12/12 - 11:03 AM

Posted by kamie on 08/12/12 - 11:02 AM

In 1968 Whaler did not specify a max engine weight for the hull, probably because everything was very light 2 stroke outboards. For the age of the hull, i would stick as close to 250#-300# as I could get. There are a couple folks with e-tech 90HP on the older 16/17 footers that love them. Do some searches on the site too see what they say about them.

Posted by thetis on 08/12/12 - 3:52 PM

I re-powered my 1964 Sackonnet with a 90HP E-Tec. Could not be happier. More speed than I really need, Cruise at 2200 RPM GPS 20mph. Sips fuel. I pull wake boarders, skiers, no problem.

The 70hp Yamaha was not available when i bought, but if it was I would of opted for the E-Tec.

Good luck

Patrick

Edited by Joe Kriz on 08/12/12 - 4:04 PM