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  Montauk's Johnson Outboard Dieseling

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Author Topic:   Montauk's Johnson Outboard Dieseling
ghwillis posted 09-19-2001 08:55 PM ET (US)   Profile for ghwillis   Send Email to ghwillis  
I have a 1979 Montauk with a 1972 Johnson 65HP outboard. Bought it used this summer. Engine was well maintained and runs like a champ. The problem I have is that the engine does not shut off with the switch after it has been running a while and has to ber 'choked' to get it to stop. I think this is called dieseling. I vaguely recall the same problem my father had with a 1969 Johnson he had. Any thoughts out there?
LarrySherman posted 09-19-2001 10:06 PM ET (US)     Profile for LarrySherman  Send Email to LarrySherman     
Nope, its not dieseling. I had the exact same problem. Its the kill ckt. The motor is stopped by removing the path to ground to both power packs. The path is is provided to the powerpacks via the black wire with the yellow stripe in the key switch, with goes from there to the poere packs through the harness. The motor keeps running because the ckt has another path to ground.


I re-wired my key switch and just removed and re-installed the power packs and all is well. You can do it too!

Let me know if you need help,

Larry

ghwillis posted 09-22-2001 07:28 PM ET (US)     Profile for ghwillis  Send Email to ghwillis     
Sounds good Larry. I peeked behind the console and noted that several of the wires have been pulled off the key switch. Where can I find out which wire goes where? I am pretty sure this is the original wiring harness but when I looked under the engine cover it was not clear which wire does what. I've got the choke switch as well to deal with. Thanks.
LarrySherman posted 09-22-2001 09:10 PM ET (US)     Profile for LarrySherman  Send Email to LarrySherman     
You need to buy one of the Clymer manuals for Johnson motors. A good comprehensive book store might have one, ore order online.

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