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post #11 of Old 01-14-2013 Thread Starter
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Re: 6hp Tohatsu for Irwin 25

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Our experience in San Francisco Bay, and outside in the open ocean, was high winds with opposing currents causing a high, short chop that would really make our 6HP struggle. The 15 HP would punch right through to the point of beating the boat pretty hard. If you just have the wind to contend with and not too much wave action, the 6HP might br OK, if you are not in a hurry

Paul T
On the West side of the state where I will be sailing, we do get some serious chop on the Lake Michigan.

This Irwin belonged to my father, and I sailed it as a kid. Then he sold it when he became sick (over a decade ago). I found it last fall on the other side of the state, and had to buy it. I have been looking through photos and have not found one that has a picture of the motor. If I could figure out what he had, then I would know for sure what to get. He always seemed to go for the smallest motor that would do the job.
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Re: 6hp Tohatsu for Irwin 25

If your boat doesn't have a well and you are in choppy conditions I would think you would need the longest shaft that will fit. I had many different 2 stroke engines and they were very reliable and lighter than the present 4 strokes. Our 6HP 4 stroke Tohatsu weighs about 60 lbs, very close to what our 15HP 2 stroke weighed, IIRC. I can only speak from my experience with a Coronado 25 on SF Bay. We could have lived with the 6HP but in addition to sailing on the Bay We made a lot of LONG trips out into the open ocean for salmon fishing. For a slight weight gain we had more than twice the power going from 6HP to 15HP. As mentioned earlier, 9.9HP probably would have been OK

You could try the 6HP 4 stroke or look for a good used 9.9 HP 2 stroke. I would assume most of the used motors in your area are fresh water only motors. You might try a search for an Irwin 25 users group for more input.

Paul T
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Re: 6hp Tohatsu for Irwin 25

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Originally Posted by dabnis View Post
If your boat doesn't have a well and you are in choppy conditions I would think you would need the longest shaft that will fit. I had many different 2 stroke engines and they were very reliable and lighter than the present 4 strokes. Our 6HP 4 stroke Tohatsu weighs about 60 lbs, very close to what our 15HP 2 stroke weighed, IIRC. I can only speak from my experience with a Coronado 25 on SF Bay. We could have lived with the 6HP but in addition to sailing on the Bay We made a lot of LONG trips out into the open ocean for salmon fishing. For a slight weight gain we had more than twice the power going from 6HP to 15HP. As mentioned earlier, 9.9HP probably would have been OK

You could try the 6HP 4 stroke or look for a good used 9.9 HP 2 stroke. I would assume most of the used motors in your area are fresh water only motors. You might try a search for an Irwin 25 users group for more input.

Paul T
Good input. I would definitely look at going with an extra long or long shaft. My last boat had an inboard OMC Sail drive. This was never something I had to think about.
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