1966 33hp johnson

[Jamo31389]

I have bought a 1966 33 hp johnson. it had no fire in both cylinders i replaced both coils points and condensor, wires are also good and still no fire does anyone have any ideas

 

[lindy46]

Re: 1966 33hp johnson

Are the coils mounted properly - flush with the mounting bosses? Are the wires firmly "screwed in" to the coils? Plug boots properly installed on wire ends? If you replaced all components with new, there's not a lot else that can be wrong. Oh, and make sure you have the key on. It won't fire with the key in the "off" position.

 

[Jamo31389]

Re: 1966 33hp johnson

yeah i went through and checked everything again and its all fine I am going to replace the key on the crankshaft and my cut out switch maybe that might help. thanks for your help

 

[tx1961whaler]

Re: 1966 33hp johnson

Disconnect the two kill wires and try it again...

 

[Jamo31389]

Re: 1966 33hp johnson

ok do you have any diagrams or anything on the wiring Im not sure which ones they are ive ordered a manual but i dont have it yet

 

[lindy46]

Re: 1966 33hp johnson

The kill wires are two black wires connected to the points. One goes directly to the ignition switch "M" terminal. The other goes to the other "M" terminal, but jumps through the cut-out switch. Disconnect those wires and see what happens.

 

[boobie]

Re: 1966 33hp johnson

Really a dumb question but have you got the points wired to the right coils ? The only reason I ask is I've seen this done before with the new style coils which sometimes have longer primary leads on them. I wouldn't worry to much about the cut out switch as it only effects one cyl only. If in doubt just disconnect the two black wires from the small terminal on it and see what happens.

 

[Jamo31389]

Re: 1966 33hp johnson

yeah they are wired right. ill have not disconnected the wires yet and tired it drained my battery trying to start it so much so its on charge but i will try it first thing

 

[jay_merrill]

Re: 1966 33hp johnson

Double check your point gap - I've seen lack of spark with surprisingly little variation from the correct gap. You must also set the gap precisely at the peak of the cam lobe on the crank shaft.

If you replace the woodruff key, be sure to get an OEM part - do not use one from a hardware store. The key must fit precisely and only an OEM part will do that. BTW, unless the key is sheared and is allowing the flywheel to move out of place, I doubt the key is your problem.



???

 

[samo_ott]

Re: 1966 33hp johnson

Here's what the wiring should look like.

 

[Jamo31389]

Re: 1966 33hp johnson

i went through and checked all my wiring and disconnected the two black wires and i got spark in my bottom cylinder