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 Catalina/Capri 25/250 Sailor's Forums
 Catalina 250 Specific Forum
 Yamaha 9.9 photos on 250		  New Topic  Topic Locked
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sailgal
Captain

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USA
400 Posts
Initially Posted - 01/19/2004 :  13:09:26  Show Profile
Figured I start a new thread since the topic showed much discussion.
Ok this is my 2002 High Thrust 9.9 4 stroke. I measured the actual "wet" submerged portion of the engine while in the down position (of course) and came up with about 22 and 1/4 inches. With the engine up I layed a yard stick down length of engine,as shown in photo. Engine is said to be a 25" shaft length.

Here is a shot to show the close fit and how the tiller arm (which houses the throttle, foward and reverse lever)angles against the fuel locker.

This is a shot of the engine turned

and the other direction...tiller arm presents problem, so I flip it back to get the extra few degrees of turn radius, which as you see is not much, but just enough to get me through the prop wash before I gain enough momentum to back into my slip.

Overall, I'm very happy with the performance, just wish the tiller arm was set up differently. I did find out that if need be it could be removed from the engine, but the question would be...where to? Hope this helps answer any questions.
Suzie, Tropical Sleigh

WB #619 Sarasota FL.
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frog0911
Master Marine Consultant

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USA
1349 Posts
Response Posted - 01/19/2004 :  20:48:54  Show Profile
Suzie, thanks a lot, the pictures cover just about any question I could come up with.
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zebra50
Captain

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USA
408 Posts
Response Posted - 01/20/2004 :  10:43:34  Show Profile
This raises a question that I have had for some time. When measuring the shaft of an OB motor, from where to where is it measured?
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Arlyn Stewart
Master Marine Consultant

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USA
2980 Posts
Response Posted - 01/20/2004 :  18:16:46  Show Profile  Visit Arlyn Stewart's Homepage
Jay,

Shaft length is the distance from where the motor mount bears (upper inside of motor mount) to the cavitation plate above the prop.
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zebra50
Captain

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USA
408 Posts
Response Posted - 01/21/2004 :  14:53:34  Show Profile
Thanks Arlyn, I knew I could count on you or someone to have the answer. Now I can go measure my Nissan 8hp and figure out the shaft length.
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Chip Hunt
Navigator

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120 Posts
Response Posted - 01/22/2004 :  22:09:50  Show Profile
i have the exact same motor. you will be pleased with it. the electric start is a fine feature.
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.