How do i set spark advance on 1960 johnson 40 hp

starcraft guy

Seaman
Joined
Jun 11, 2002
Messages
73
I have put in new points,condensers, coils, carb kit,fuel pump working good,<br /> I have also put on a electric starter to make things easer,Motor will start run a short time<br />then kind of bucks and stops ,it will start every time but only run a few sec,<br />Any ideas way this won't run right?<br />thanks river run
 

oldboat1

Fleet Admiral
Joined
Apr 3, 2002
Messages
9,612
Re: How do i set spark advance on 1960 johnson 40 hp

Assuming point and plug gaps are right and the fuel system is clean, it might be your fuel mix. I think your manual should recommend about 30:1 or something in that range (24:1?) -- maybe experiment with 35:1 or 40:1 with fresh fuel and TCW-3 oil. Mix a half gallon at a time until you know what mix is right.
 

starcraft guy

Seaman
Joined
Jun 11, 2002
Messages
73
Re: How do i set spark advance on 1960 johnson 40 hp

Thanks oldboat1<br />Points set at ,020 plugs at ,030<br />gas oil mix 40to 1 with tcw-3 oil fresh gas too<br />Low spead set at1 1/2 turns out,high spead out 3/4<br />turn out,It wont run long enought to set low spea <br />thanks river run
 

Lark40

Senior Chief Petty Officer
Joined
Oct 29, 2001
Messages
793
Re: How do i set spark advance on 1960 johnson 40 hp

Go to your local boat store and buy a copy of Clymer's Evinrude/Johnson Repair Manual, 1956-1972.<br /><br />This manual has every possible tuning and repair advice you need, plus great wiring schematics. It explains the spark advance with pictures.
 

starcraft guy

Seaman
Joined
Jun 11, 2002
Messages
73
Re: How do i set spark advance on 1960 johnson 40 hp

Thanks Lark40<br /> Good idea ,will do that,<br /> thanks river run
 

fireman 757

Petty Officer 1st Class
Joined
May 18, 2002
Messages
276
Re: How do i set spark advance on 1960 johnson 40 hp

My '58 had a cutout switch under the flywheel that went bad and is no longer available. OMC advised me to remove it and hook the wires to each other and bypass it. I don't know if your model year had it or not. Get the manual as it will save you a ton of time and cash.
 

starcraft guy

Seaman
Joined
Jun 11, 2002
Messages
73
Re: How do i set spark advance on 1960 johnson 40 hp

Thanks Fireman,<br />I will have a look at that switch,There is one on mine ,<br />Thanks again<br /> river run
 
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