Old Johnson Outboard

[inspirit]

I'm renovating a Johnson 3HP outboard (circa 1976). It wasn't working when I got it but now that I've replaced all the electrics I can get it to start and run for a minute or so. Then it stalls and I'm fairly sure that the mixture being too rich is causing it. Does anyone have experience of tuning a Johnosn Carb from this era as I can't see how to reduce the mixture?
PS the mixture screw for slow running is shut when it stalls

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[johna]

I have sent you a PM with copy of section from manual.

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[Phil_M]

See my thread on Evinrude Ob just down the page a bit..
I was given a good site to go to for outboard info. It also had extensive forums about outboards.

Phil

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[warrenmarkus1]

Hi Johna,
I too have a johnson 3.0hp which was a non runner. I too am having problems getting it to idel properly and wonder if you could send me a copy of the post if you still have it.
If you have anything on the coil resistances too, it would be most useful
Cheers
W

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