picked up 76 70hp johnson what prop is correct for this motor

[shawpdx1]

the prop on it is watsted not sure of stock prop it came with also no spark on her its a dark green motor with white cowling says 70hp seahorse good motor? comp was 138 in all 3 cylinders.

 

[Boss Hawg]

Re: picked up 76 70hp johnson what prop is correct for this motor

Boat size, type, what you use it for, ect is needed
I have a '87 70hp Johnson & it's great
FWIW i run a 13X19 on it pushing a 16' fiber bass boat

 

[mobiletec]

Re: picked up 76 70hp johnson what prop is correct for this motor

mine came with a13 1/4x 17 on a 16 foot fiberglass

 

[kenmyfam]

Re: picked up 76 70hp johnson what prop is correct for this motor

You need a prop to suit your load, hull and type of use. There is a "standard" prop that your motor originally came with but that does not mean that it would be suited to your needs.

 

[shawpdx1]

Re: picked up 76 70hp johnson what prop is correct for this motor

I have a 16' seaswirl open bow IM on the fence to either go with my 85 85hp force or this johnson for some reason im leaning towards the johnson the name says it all really all 3 cylinders are at 135psi

 

[Bill3434]

Re: picked up 76 70hp johnson what prop is correct for this motor

I have a 1977, 70hp. can't tell you what size since my marina guy has it whyl I restore my boat. But like others have said it depends on the boat. Needs to go WOT about 5500rpms with the boat you have. You don't want to over rev. I tested mine with just me in it and 12 gals of fuel. Ended up with what I started out with. That is likely to change since I'm restoring my boat, you wouldn't believe all the wet wood that was taken out.

 

[steelespike]

Re: picked up 76 70hp johnson what prop is correct for this motor

This is a 3 year old thread.Your not likely to get a response.Oh wait a minute you just did.
You should start your own thread about your project.
Be sure your boat holds it shape as you gut it.you don't want to end up with a hook or too much rocker.

 

[Bill3434]

Re: picked up 76 70hp johnson what prop is correct for this motor

Thanks, didn't notice it was a three year old thead. Yes I started my own thread on my project.