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1994 Johnson 150 Shift Switch issues

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Baxter83

Member
I think I'm having a problem with the shift switch, but I'm very open for other suggestions. I can back the boat in the water, fire it off, and blast off with no issues. After running for just a few minutes it looses power and comes off plane. Once this happens I'm down to idling where sometimes it'll "jump" like it wants to go again, but just a puff of smoke with a burst of power and that's it. I popped the cowl and poked around, but the only obvious thing I noticed was that the port cylinders were noticeably warmer than starboard. The last time I was out it did about the same thing, and since I'd read a little about the shift switch shutting down 3 cylinders I unplugged it. It never went down again, but it wants to keep running after turning the key off. Any ideas?
 
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Repair / adjust / replace the sticky shift switch.--------When you shut it off it is likely running on 3 cylinders.----Easy to test for that.
 
racerone said:
Repair / adjust / replace the sticky shift switch.--------When you shut it off it is likely running on 3 cylinders.----Easy to test for that.
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Thanks for the response!
Since the problem is intermittent how could I test for it? How would I go about testing the switch? It looks lo like it grounds to the block in one position and the other position maintains continuity?
 
Baxter83 said:
Thanks for the response!
Since the problem is intermittent how could I test for it? How would I go about testing the switch? It looks lo like it grounds to the block in one position and the other position maintains continuity?
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Lets see,runs poorly with switch hooked up,runs good with switch unhooked.how much testing do you want?
 
Rwbutler said:
Lets see,runs poorly with switch hooked up,runs good with switch unhooked.how much testing do you want?
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Lol, I gotcha. I'm thinking a little deeper though. Poor continuity through the switch, poor ground, open circuit in a wire, etc. I'm asking if there's a common issue with these, or if I should stop trying to figure it out in that detail and replace it?
 
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