trouble with 1985 85hp force running

dave1563

Recruit
Joined
Jul 4, 2012
Messages
4
i have a 85 85 hp force ive had it a few yrs with limited trouble but i had to replace the impeller this yr and now the boat doesnt run right. itll star fairly easily and run as long as i have it throttled up in neutral. it will run when i throttle down but wont run for long before it will sputter and shut off. iput new plugs in it and cleaned the carbs. i think its a coil gone bad but the plugs all look the same. the only time u notice the trouble is on the water. itll run at no wake speed fine but when u up the throttle to get the boat to planing speed it wont open up. it goes just fast enough to cause a wake and thats it. i thought the gas was too rich so i leaned it up a little to no avail. i do mix it 50:1. any help would be greatly appreciated
 

jerryjerry05

Supreme Mariner
Joined
May 7, 2008
Messages
18,183
Re: trouble with 1985 85hp force running

A compression/spark test?Post the results.
The fuel pump,check the diaphram.
 

dave1563

Recruit
Joined
Jul 4, 2012
Messages
4
Re: trouble with 1985 85hp force running

I finally got it ruining somewhat decent. It had nothing to do with spark or compression. When cleaning the carbs I didn't put then back in the exact same place and the throttle pickup screw wasbt where it was sposed to be. However I am having a problem but think I've figured it out from the forum here. If I get the motor started the only way I can
keep it running is if I keep c clicking the choke on and off. If u spray it with carb cleaner it'll run fine. Im thinking its the fuel pump. It sounds like its starving for fuel. I guess I'll try it and see what happens
 
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