1962 evinrude fastwin on a 1236 aluminum john boat motor height.

[Chrisham]

If your " cool looking " prop has too much pitch , then acceleration will be slow.-----Have you adjusted carburetor mixture screws for proper performance , yes , no or no idea how?

How do I adjust the high speed

 

[Chrisham]

How do I adjust the high speed

Update got a welder making a bracket so I can raise motor .Im going to try that

 

[airshot]

Update got a welder making a bracket so I can raise motor .Im going to try that

Hopefully that will also strengthen the transom as well. That much weight and hp will weaken the transom over a short period of time. If you have any pics of the motor on the transom they might help us make sugestions.

 

[Chrisham]

Hopefully that will also strengthen the transom as well. That much weight and hp will weaken the transom over a short period of time. If you have any pics of the motor on the transom they might help us make sugestions.

Here are pictures .I raised it 2 1/8 inches. Now with the pin in the first hole the front of the cavitation plate is slightly lower than the bottom of the hull.When adjusted all the way back it is slightly higher.Im going to try the second hole first..mI just redid the transom.

 

[Chrisham]

View attachment 416501View attachment 416502View attachment 416503

Here are pictures .I raised it 2 1/8 inches. Now with the pin in the first hole the front of the cavitation plate is slightly lower than the bottom of the hull.When adjusted all the way back it is slightly higher.Im going to try the second hole first..mI just redid the transom.

 

[Chrisham]

 

[Chrisham]

View attachment 416529

I just did the water test with the motor raised 2 inches.Its running like a scalded dog now.I also tweaked the high speed jet on the carb that helped some also.Now it's scary fast
Thanks everyone

 

[airshot]

With the cav plate parallel to the bottom of the boat ( disregard what hole it is in) is the cav plate above, below or right at the bottom of the hull ? Once that height is set, now you can trim to get the best ride. Do you have a fact for the engine ? Don't over rev, or you might be buying another motor !
It does look like it would be a fun toy !