1976 Johnson 9.9 popping out of gear?

TAKE EM!

Cadet
Joined
Nov 23, 2008
Messages
7
I have a 1979 Johnson Seahorse 9.9 and when going full throttle the prop quits spinning and the engine revs up really loud. It almost sounds like it popping out of gear but the knob is still on forward. Any ideas/tips/answers?
 

tashasdaddy

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51,019
Re: 1979 Johnson 9.9 popping out of gear?

Re: 1979 Johnson 9.9 popping out of gear?

spun prop, or shear pin. or it could be a bad clutch dog. did it just start doing this? is this motor new to you? has the lower unit been off lately, for impeller?
 

TAKE EM!

Cadet
Joined
Nov 23, 2008
Messages
7
Re: 1979 Johnson 9.9 popping out of gear?

Re: 1979 Johnson 9.9 popping out of gear?

This motor is new to me. I have never taken the lower unit off. What do i need to look for when i take the lower unit off?
 

TAKE EM!

Cadet
Joined
Nov 23, 2008
Messages
7
Re: 1979 Johnson 9.9 popping out of gear?

Re: 1979 Johnson 9.9 popping out of gear?

When i put in a barrel and run it, it never happens. It only happens when the boat is moving. When going full throttle every so often the prop quits spinning and the engine revs up really loud and then it kicks back into gear. Should i take the lower unit off? If so, what should i first look for?
 

TAKE EM!

Cadet
Joined
Nov 23, 2008
Messages
7
Re: 1976 Johnson 9.9 popping out of gear?

It was a spun prop. Thank you. As you can tell i dont know much about boat motors. Im sure ill be back needing answers to something else. Thanks again.
 
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