Idle Problem

mike harris

Recruit
Joined
Jun 13, 2009
Messages
1
I recently bought a older johnson 75 horsepower around late 60s early 70s. I cant seem to get the motor to idle or cruise at very low speeds neutral or not. turns off sometimes when put in gear. The biggest problem is 70 percent of the time it doesnt start without starter fluid. I hate to use it like this, suggestions?
 

a70eliminator

Captain
Joined
Sep 9, 2007
Messages
3,762
Re: Idle Problem

Start with a tune-up of engine and fuel delivery system, including carb. A compression check would actually be my first move just to indicate the overall health of the powerhead, because a tune-up won't cure a damaged cylinder.
 

billy4hp

Petty Officer 1st Class
Joined
Jan 31, 2009
Messages
245
Re: Idle Problem

I recently bought a older johnson 75 horsepower around late 60s early 70s. I cant seem to get the motor to idle or cruise at very low speeds neutral or not. turns off sometimes when put in gear. The biggest problem is 70 percent of the time it doesnt start without starter fluid. I hate to use it like this, suggestions?

Using starter fluid is a big NO NO with a two stroke engine. There is no lubrication in the starting fluid and all you are doing (other than getting the engine started) is big time cylinder wear...

You surely have a dirty carb issue, get some rebuild kit ASAP.....

Good luck,

Billy
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: Idle Problem

no starter fluid period!!!!!!! what motor is it exacty? year model # they had several different 75's and carbs then.
 
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