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#1
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Damn, that is about the identical situation I had last week out at the Highlands. Maybe we can kill 2 birds with one stone. I've eliminated fuel issues at least up to the carbs.
__________________
1986 V-20 1986 Yamaha 150 HP 
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#2
10-19-2020, 04:03 PM
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It's not a fuel issue definitely electrical , the way she was running definitely electrical. What motor do you have?
__________________
love to fish
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#3
10-19-2020, 08:48 PM
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Go to harbor freight and pick up a fire fly type spark plug tester, less than 5 bucks
https://www.harborfreight.com/90-in-...ker-63593.html Run it on the hose to see if it’s firing on all cylinders Is your tach acting wacky
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#4
10-19-2020, 09:22 PM
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I should probably start a new thread so not to hijack this one. but yes as I was playing around with fuel lines and such the tach would read zero at times and work normally at others
__________________
1986 V-20 1986 Yamaha 150 HP
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#5
10-19-2020, 09:34 PM
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Quote:
__________________
1986 V-20 1986 Yamaha 150 HP
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#6
10-20-2020, 12:10 PM
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Tach was good, I had the stator replaced 2 years ago along with the trigger but I have had issues with my stators,
I must have had them replaced 5 times and one within a year. Can a switch box be tested?
__________________
love to fish
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#8
10-20-2020, 07:37 PM
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Yes phat but does the stator fire three plugs on one side what I mean if I'm losing three plugs on one side I know it could be a switch box but can a stator do the same thing?
__________________
love to fish
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#9
10-21-2020, 06:56 AM
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I am not a mechanic, but the way i understand it, if your motor is charging, your stator is working.
The switch boxes are like a distributor on a car, sends the fire to the right plug at the right time. Have u determined that it is only hitting on 3 cylinders?
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