1995 Nissan 9.9 carb problems

Clea

Seaman Apprentice
Joined
Apr 19, 2008
Messages
41
When give it throttle and under a load, want to spit and sputter. Bogging down and takes a bit to catch up. Been told carb has been rebuilt. Is it the adjustments? Anyone help Please. Thanks Charlie
 

Sea Rider

Supreme Mariner
Joined
Sep 20, 2008
Messages
12,345
Re: 1995 Nissan 9.9 carb problems

If it's a 2 strokes engine, probably carb was not correctly cleaned out still with some varnish, gunk inside, how's gas pump diaphragms condition, dried, cracked, balooned ? If so, replace all. You could have air entering through hose connectors o'rings because are dried out or wored with use or even shorted plugs that fails when giving juice.

Happy Boating
 

Clea

Seaman Apprentice
Joined
Apr 19, 2008
Messages
41
Re: 1995 Nissan 9.9 carb problems

Sorry, It's a 2 Stroke
 

pvanv

Admiral
Joined
Apr 20, 2008
Messages
6,570
Re: 1995 Nissan 9.9 carb problems

When give it throttle and under a load, want to spit and sputter. Bogging down and takes a bit to catch up. Been told carb has been rebuilt. Is it the adjustments? Anyone help Please. Thanks Charlie

What is your actual model/serial?
 

Clea

Seaman Apprentice
Joined
Apr 19, 2008
Messages
41
Re: 1995 Nissan 9.9 carb problems

355a41551 ---- m99b2
 

pvanv

Admiral
Joined
Apr 20, 2008
Messages
6,570
Re: 1995 Nissan 9.9 carb problems

Be advised that there isn't any carb kit available for the 9.9B2 any more. A few individual carb parts may be available. I would whip out the Factory service manual, and using it as a guide, verify timing (link/sync), and if that's OK, check the carb and reed valve. Odds are that the carb needs a Proper cleaning.
 
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