Johnson "70mod"

[hupiveneilija]

compression check before starting it up.

Fire up first then check 😬.

[filthy phill]

I do hope this runs good for you.
you have put a lot of work in the motor.

Be good to hear it run, I hope you have video ready for us to hear the beast running.

[Ron Hill]

Fire up first then check .

http://www.odysseybattery.com/batter...FZ24wAodg6QHIw

These batteries worked GREAT on our 45 SS, amazing cranking power.

[filthy phill]

I use a banner 75amp with 660 cca. Works a treat.

[hupiveneilija]

Damaged propeller gets a new job. Cut the plades few cm, can use as a testprop on boatramp.

[hupiveneilija]

Here it is! https://youtu.be/oPcqyNwOrxE
Funny how much better it works when wires are in right places. Tomorrow to the boatramp with that "testprop" and see how it run.
1. 145psi 2. 148psi 3. 146psi. Cyl.head temp aprx.60*c. Ign timing 2*btdc.

[filthy phill]

it is running hooray.
sounds nice and crisp 2 stroke ..good.

not high compression though ? why seems very strange unless the head was from a 50hp 3 cylinder ????

[hupiveneilija]

it is running hooray.
sounds nice and crisp 2 stroke ..good.

not high compression though ? why seems very strange unless the head was from a 50hp 3 cylinder ????

Porting, ex timearea. With stock porting supposed to be higher. Correct?