Johnson 1992 60 HP High speed starvation/hesitation?

Daleboat

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Jun 27, 2011
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I have a 1992 60HP Johnson, we recently replaced the CDI module, Plugs and Fuel filter and the motor starts with a tap of the key and Idles and runs at low speed (10-22 Km/hr) great. As I throttle up to max it starts skipping/hestiating or starving? makes a loud thrumming (dont know how else to describe) and will not go any faster.

I have cleaned the carbs with carb cleaner (it seemed to make things smoother at the low end), but the issue continues.

Two questions,
1. any idea on what is the issue?
2. Can I run the motor as is at low speed without damage until I can get it out of the water adn to a marina?

Cheers.
 

fireman57

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Aug 24, 2004
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Re: Johnson 1992 60 HP High speed starvation/hesitation?

I would check for spark with a timing light when it does this and make sure that you are running on all cylinders. Sorry, almost forgot, welcome to iboats!
 

Daleboat

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Re: Johnson 1992 60 HP High speed starvation/hesitation?

Thanks Sounds like I will need a mechanic then, I am comfortable with minor repairs, but I don't have access to a timing gun etc.

Everything was running prior to the CDI Box replacement, with the exception it was difficult to start.

Thanks.
 

fireman57

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Re: Johnson 1992 60 HP High speed starvation/hesitation?

you shouldn't need a mechanic for this. You can buy a spark checker at AAutopartscheapzone for about 10 bucks. The coils just unbolt. Check your wires for gunk on them and make sure they have good connection.
 

Daleboat

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Re: Johnson 1992 60 HP High speed starvation/hesitation?

I ended up at a marina with it, and these guys replaced the CDI module (a second one) and the boat ran great. Until I stopped it , and restarted, it started and as I put it in reverse is cut out, and then .... No spark gone dead.

Somethings blowing the CDI module and its getting expensive.

Any Idea's? I am having the same marina pick up the boat and fix it . I assume if the Module blows within 4 hours of me having it they would honor some warranty.
 

Daleboat

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Jun 27, 2011
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Re: Johnson 1992 60 HP High speed starvation/hesitation?

For anyone interested, it was a blown coil, which was in turn blowing the CDI module, the Hesitation was a result of a bad CDI module.

Regards
 

fireman57

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Re: Johnson 1992 60 HP High speed starvation/hesitation?

Thanks for getting back with us. When I wanted you to check for spark it is usually a coil.
 
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