1987 Johnson 70 Hp

[kenm11]

Engine Stalls A Lot At Slow Speeds (no Wake Zones)
Even At 2000 Rpms. Runs Fine At Higher Speeds.engine Was Rebuilt
About Two Years Ago.

Any Advise On What To Check.thanks

 

[SpinnerBait_Nut]

Re: 1987 Johnson 70 Hp

Engine Stalls A Lot At Slow Speeds (no Wake Zones)
Even At 2000 Rpms. Runs Fine At Higher Speeds.engine Was Rebuilt
About Two Years Ago.

Any Advise On What To Check.thanks

Welcome to iboats.
This is the wrong forum.
Needs to be in the Johnson/Evinrude forum way up^^^^^ there.
I will move it there now and again, welcome to iboats.

 

[smkonwatr]

Re: 1987 Johnson 70 Hp

you might want to check my post (1987 johnson traileritis to see what I have tried to cure my motor.The two things that I think helped my motor was the prop change and the idle jet change. Try hitting choke at slow speeds, does the motor than run or does the extra gas kill engine immediatly?If it runs better I would try a different idle jet. On my 70 hp the smaller number jet the less air and the more fuel.If motor kills when choked than I would try leaner idle orfice.

 

[HighTrim]

Re: 1987 Johnson 70 Hp

Were the carbs rebuilt along with the motor?

Will pumping the fuel primer bulb pick it up? What about spraying pre mix into the throat of the carbs? Choking it?