1976 85hp johnson will not shut off

[skruff33]

Hi everybody,im new to sight so hope i can get some much needed help here....recently had to replace power pack on my 85hp johnson its starts rite up no problem,just cant get it 2 turn off ,i tried everything went thru the ignition wires ,even replaced ignition,still same wont shut off,I even read a thread that i could ground out the black/yellow wireto motor and that would shut motor off but didnt do anything,im going crazy""""its prolly somthin simple ,but hope some 1 can give me some leads on what to do or check or somthin,,thanx hope to hear from a boat guru soon..............

 

[Billy O]

Re: 1976 85hp johnson will not shut off

I was working on a 78 35hp that did the same thing. Crank the motor and then turn the key off. Start wiggling the wire harness. Mine had what looked like a small capacitor mounted on starboard side of engine that had a single black wire coming from it. This wire ran to a connector that was wired to one of the coil packs. Wire was loose in the connector and would slip out .

 

[skruff33]

Re: 1976 85hp johnson will not shut off

ya i thought same thing shaked ,wiggled everything accept rip the dam thing out lol.....

 

[ezeke]

Re: 1976 85hp johnson will not shut off

Use your ohmmeter to test the kill circuit from the red plug at the engine forward.

With the battery disconnected, disconnect the large red plug and connect your ohmeter as shown in the thumbnail (click the thumbnail, please).

Turn the key to on, then off, ohmmeter should show open, then closed.

If it does not, you have either a bad ground connection, a bad ignition switch, or a break in the black wire with the yellow stripe.

 

[skruff33]

Re: 1976 85hp johnson will not shut off

i will try that thanx,,,would you happen to no how to hook up the ignition with a m m b s c i no purple goes to a/prple /white goes to choke/red purple to b/now i have that blak /yellow i think goes to the high m/then i have a solid black wire i think goes to the other m/a black ground on the control case not sure were that goes and a nutrael saftey switch wire i think goes to s,does that sound rite ,if not can you point me in the rite direction ,,thanx....

 

[emdsapmgr]

Re: 1976 85hp johnson will not shut off

I replaced a power pack once with another used one. It would not respond to the key switch to turn off. Kept running instead. I replaced the pack with another used one and it shut off normally.

 

[mike1245]

Re: 1976 85hp johnson will not shut off

the two m spot on your switch one comes from your ignition box and the other comes from the ground on battery i bet u left one of the two off when you turn off key the two m spots make contact and ground out motor to turn it off

 

[skruff33]

Re: 1976 85hp johnson will not shut off

Use your ohmmeter to test the kill circuit from the red plug at the engine forward.

With the battery disconnected, disconnect the large red plug and connect your ohmeter as shown in the thumbnail (click the thumbnail, please).

Turn the key to on, then off, ohmmeter should show open, then closed.

If it does not, you have either a bad ground connection, a bad ignition switch, or a break in the black wire with the yellow stripe.

ya did that test ,ohm meter showed open then closed,im leaning torward a bad power pack that i just replaced,anyway to test p pack ,or anything else you suggest