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Johnston 60 hp motors difficult to start and keep running

mayliffe's Avatar
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02-14-02, 12:27 PM   #1  
Johnston 60 hp motors difficult to start and keep running

I have 2 1996 Johnston outboard motors which I find are very difficult to start and keep running after sitting around for a few weeks - months. The engines typically turnover and start but conk out after 5-15 second s as if they are not getting enough fuel. The also blow an inordinate amount of smoke when intially trying to get them running. Once I have got them running which may take upto an hour of turning them over they finally will run perfectly with no problems. Do you have any ideas of what may be causing the problems???

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fewalt's Avatar

Join Date: Feb 2001
Posts: 3,100

02-16-02, 07:12 AM   #2  
A number of things cause this problem I'm all too familiar with:
old gas, fouled lugs, dirty carb.
After my boat sits all winter, hopefully w/o any gas in the tank,
I always either replace plugs or at least give them a good once over.
The excessive smoke at first is about normal - the gas evaporates/gums up and there is extra oil to burn off at first.

BoatMech's Avatar

Join Date: Dec 1999
Posts: 592

02-17-02, 10:16 PM   #3  
yes it does sound like poor fuel,
have you used stabilizer during storage,
fuel deteriorates rather quickly with todays
octane enhancers.
try a fresh tank>

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