Poor throttle down

[Chris Jones]

hI , CAN ANYONE HELP, I AMA NOVICE TO OUTBOARDS,AND JUST PUCHESED MY FIRST BOAT WITH A JOHNSON SEAHORSE 20hp .SHE STARTS OK AND SEEMS TO RUN FINE UNTIL YOU THROTTLE BACK,THEN SHE CUTS OUT AND IS VERY DIFFICULT TO GET GOING,USUALLY HAVE TO GIVE IT CHOKE,DONT THINK ITS ELECTRICAL BECAUSE OF THIS.ANY ADVICE WILL BE WELCOME

 

[bktheking]

Re: Poor throttle down

Sounds like carb, either try adjusting the idle mix screw or clean the carb for starters. Welcome to iboats and lose the caps lock

 

[Chris Jones]

Re: Poor throttle down

Thanks captain , i'll try that . Would it be worthwhile running the appropriate cleaners through.
Chris::

 

[CatfishMN]

Re: Poor throttle down

Thanks captain , i'll try that . Would it be worthwhile running the appropriate cleaners through.
Chris::

By 'cleaners' do you mean Seafoam? It won't clean your carb while running. Take the carb apart and soak it in carb cleaner, yes.

 

[bktheking]

Re: Poor throttle down

Like Catfish said you can't clean a carb by running a cleaner in the tank, the carb has to be removed, soaked and all the internals replaced with a kit.

 

[Chris Jones]

Re: Poor throttle down

Thanks Catfish and Captain,i'm used to car engines more , so still finding my feet. Will have a look at carb and get an expert on it . Thanks again
Chris