Deactivated circuit ?

[Jtgator]

1997 Johnson o/b 2 stroke 60hp.
Engine stutters on acceleration, idles fine...Took to local marina mechanic. Diagnosed a deactivated circuit, repair ticket states reactivated circuit.
I took the boat out after repair and it ran great for about 5 or 10 minutes then developed stutter again. I did not get a chance to talk to mechanic after repair.
Anyone know what a deactivated circuit means, cant find any explanation from Google.

 

[Crosbyman]

well in my limited experience as a boater ( not a mechanic.... just a boater) for 50 years it sounds like mumbo jumbo talk and the mechanic should have been explicit

​in any event looks like your engine is deactvated again so better bring it back to the shop and ask him to be explicit......

 

[ajgraz]

That is far too vague. Mech may as well have written "something was broken."

 

[Chris1956]

I agree it is far too vague of an explanation. A possible explanation is that the overheat circuit was grounded, activating SLOW which kills spark to part of the motor, SLOW kills spark to 1/2 the engine on the larger V4 and V6 motors. Not sure if you have it or not.

 

[clanton]

Time for compression test.

 

[gm280]

Well I don't have the answer either. But any time a "circuit" is mentioned, I would say it is pointing to the spark system. You could verify that part by running the engine and one at a time, remove each spark plug wire to see if the engine changes RPMs. If it does, then you know that cylinder was working. When you get to a cylinder that doesn't change RPMs when you remove the wire, that cylinder is dead. And that would verify a circuit not activated/ working. JMHO

 

[oldboat1]

VRO pump plug/circuit maybe?

 

[boobie]

Find a different mechanic !!