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post #1 of 10 Old 03-07-2012 Thread Starter
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8hp Tohatsu/Nissan with Xlong Shaft?

I searched the forum for info but couldn't find anything recent and I need the latest.

I'm moving up to a Catalina 25 (Yay Me! ) but the boat and engine are both from 1982. Also, I have a wealthy aunt who might be getting very clumsy in June or July;

So an upgrade from the 1982 9.9 Evinrude SailMaster 2 stroke is likely to happen (her home has very steep stairs and her meds make her a little unsteady).

My reading leads me to believe that there is no reason to get the 9.8hp, because all it does is rev higher than the 8.0; as a full displacement hull, I can't use the extra RPM (she could take a bath and slip beneath the water; it happens all the time).

BUT the Tohatsu 9.8 (MFS9.8EFUL) has a 25" shaft and comes with a 8.7"x5.0" 4 blade prop;

The 8hp (MFS8A3EFL) only has a 20" shaft and is listed with a 8.5x8.0 3 blade prop;

(She sometimes leaves the gas stove on and wanders out of the room; very troubling)

I know I can get a better prop for the 8hp, maybe even get it included and not have to pay for the standard one, but the longer shaft is worth the money (about $250 more) because it's deeper (duh!) and swings a slightly larger prop (she invites strangers into her home; it's really just a matter of time).

Long post short (that poor woman; we're all very concerned) does Tohatsu/Nissan offer the 8hp 4stroke with a 25" shaft?

They offer a 6hp SailPro with a 25" leg, why not an 8hp?

Zen Again

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post #2 of 10 Old 03-07-2012
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Re: 8hp Tohatsu/Nissan with Xlong Shaft?

Try This:

Discount Tohatsu Outboards and Nissan Outboard Motors

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post #3 of 10 Old 03-08-2012 Thread Starter
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Re: 8hp Tohatsu/Nissan with Xlong Shaft?

Thanks, Paul. I tried them; no 8hp w/ a 25" leg.

Zen Again

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post #4 of 10 Old 03-08-2012
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Re: 8hp Tohatsu/Nissan with Xlong Shaft?

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Thanks, Paul. I tried them; no 8hp w/ a 25" leg.
Not familiar with your particular boat but would suggest the most powerful motor(to a point!) with the longest shaft that will fit.

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post #5 of 10 Old 03-09-2012
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Re: 8hp Tohatsu/Nissan with Xlong Shaft?

According to the manual, the long shaft is 22.1" not 20". The XL is 27.1". There is a shaft extension kit that costs around $200 that you can get to extend the shaft. Part number is 3V1Q87314-3. I've been thinking of getting it for my motor. But I think maybe the real problem is my motor is too far aft and what I need is a different mounting system.
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post #6 of 10 Old 03-09-2012
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Re: 8hp Tohatsu/Nissan with Xlong Shaft?

While there comes a point where strapping too much horsepower on a sailboat is useless, you're fretting over a fairly insignificant difference. In ideal conditions, you may have excess with the larger motor, but you may appreciate that you have the extra juice in less than ideal conditions. Also, you can always run a gas engine at lower power, which is actually better for them to a point.

I would get the 9 and take better care of your Aunt. Your nephew will be eying your boat one day..............


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post #7 of 10 Old 03-09-2012 Thread Starter
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Re: 8hp Tohatsu/Nissan with Xlong Shaft?

Thanks, guys.

My first hope is that the aged Evinrude survives one more season (it's made it this far).

If I had to buy now, I'd go with the 9.8 XL shaft; buying the 8 and fitting a longer shaft wouldn't save me any money, and that's the only reason to get the 8.

Step 2 will be to purchase and fit the remote kit. I'm going with the electric start so the Admiral can fire it up, if needed.

Zen Again

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post #8 of 10 Old 03-13-2012
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Re: 8hp Tohatsu/Nissan with Xlong Shaft?

Try this site. Honda & Tohatsu/Nissan Outboards

Is all about Tohatsu and Honda outboards with lots of expert information

Mike

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post #9 of 10 Old 03-13-2012
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Re: 8hp Tohatsu/Nissan with Xlong Shaft?

The new motor is gonna be WAY to much weight for the old mount so work one into the budget unless the old mount was massive as the new motors are mucho heavy

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post #10 of 10 Old 03-13-2012 Thread Starter
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Re: 8hp Tohatsu/Nissan with Xlong Shaft?

Thanks, tommays.

I'm going up this weekend, I'll get the model of the mount and google it. It is a new one and sure looks sturdy.

I have to assume it was already holding the 9.9 Evinrude but a new 4stroke is probably heavier.

Zen Again

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