150 ocean runner stalling

irish guy

Recruit
Joined
Apr 4, 2019
Messages
3
after running my Johnson 150 Ocean Runner around the lake at 3500 RPM or so and i throttle down to 1000 or so then bring her down further to 600 or so she will stall out . she will struggle to restart then will run fine at 600 or so into the marina She starts fine when i first get on te boat but has a little cough at low idle RPMs. any thoughts out there?
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
39,282
Interested in trouble shooting ?------Could be water in the fuel.-----Could be warped carburetor bowls.-----Weak spark.------Fuel restriction.-----Compression issues.
 

irish guy

Recruit
Joined
Apr 4, 2019
Messages
3
thanks for your response. the stalling happened 2 summers ago So last spring i had all the bowls replaced, a new power pack and sensor and fuel filters replaced . ran fine till the fall then the stalling started again same as the last year.
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
39,282
So post #2 has the real details of the story----Maybe your shop will have another look at it.-----How much have you spent so far ?
 
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