Johnson 6hp outboard on 12ft aluminum boat

[dalifts]

Ok First thanks for any suggestions. I have a 12ft aluminum boat i just bought . It has a johnson 6hp outboard which moves bout 6mph in the water with 2 passangers 400lbs of weight between us 2. now Here's my question when we are moving i swear i dotn see the cav plate at all. Now i dont have a camera except on my computer so ill post pics of it on my trailer. It sits below the boat. But i dont think i can adjust it and its barely on the wood thats on teh boat any suggestions ??

 

[dalifts]

Re: Johnson 6hp outboard on 12ft aluminum boat

 

[SolingSailor]

Re: Johnson 6hp outboard on 12ft aluminum boat

I don't understand the question. Would you be more specific?

 

[dalifts]

Re: Johnson 6hp outboard on 12ft aluminum boat

is the motor sitting to low on the boat ? i mean

 

[Huron Angler]

Re: Johnson 6hp outboard on 12ft aluminum boat

Since you aren't generating enough thrust to plane the boat out, you are operating it at displacement speed, which does not lift the boat up on top of the water.

If it were planing out then the motor leg would lift up and place the cavitation plate at the proper height in relation to the waterline.

I have a 5.5hp on my 12' boat and it's got a snowball's chance in heck of planing the boat with 2 adults. I'm happy using it at displacement speeds since it's just a fishing boat for small lakes and rivers.

 

[Sea Rider]

Re: Johnson 6hp outboard on 12ft aluminum boat

Since you aren't generating enough thrust to plane the boat out, you are operating it at displacement speed, which does not lift the boat up on top of the water. If it were planing out then the motor leg would lift up and place the cavitation plate at the proper height in relation to the waterline.

You are correct, on the other hand, If you see the cav plate while on plane or full wot, your engine is set too high, will experiment excesive cavitation at tight turns and choppy seas. The best position is when you see the small plate some milimeters above water line when on plane. A matter to fine tune engine/transom height if in pursuit of boating perfection.

Happy Boating