1989 Force 50 - question about carburetor adjustment screws

skelton92

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Jul 28, 2013
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I recently purchased a boat with a 1989 Force 50 two-cycle outboard. I am tuning up the motor and would like to know where I need to set my carburetor screws at and which screw does what. One is brass, the other is plastic. Here is a picture.
fd52c050-35eb-415c-8c1b-4f09cef22d63_zpsd3843e32.jpg


There is also a mystery spring dangling that the previous owner said it has never been attached to anything. Surely it is suppose to be connected to something. Here is a picture of it.
StCloud-20130730-01006_zps005beded.jpg

mysteryspring_zps8b86f856.jpg

Any help will be appreciated.

Thanks,

Skelton92
 

skelton92

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Re: 1989 Force 50 - question about carburetor adjustment screws

Correction, I have a 1991 Force 50 outboard. I keyed in the Model# (H0507X91A) on ********** and it said it was a 91 model. The motor was running good until I pulled my son around on a tube.
 

Frank Acampora

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Jan 19, 2007
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12,004
Re: 1989 Force 50 - question about carburetor adjustment screws

The white plastic "screw" is simply a plug for the air bleed jet. You only remove it for cleaning the carb and you screw it in tight--there is no adjustment.

The brass screw IS a low speed needle and preliminary setting should be 1 to 1 1/4 turns out from lightly seated.

The mystery spring is just that. It was never on any stock force engine. perhaps a previous owner put it there in a vain effort to help return the trigger to idle position. Remove it before it bounces up under the flywheel and causes trouble.
 
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skelton92

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Re: 1989 Force 50 - question about carburetor adjustment screws

Thanks for your help Frank. I'm glad to have found a forum where there are people who actually want to help, rather than badmouth the boat and motor you own. The bottom line is, we all want to be out on the water enjoying it regardless of how fancy or simple our rig may be. Again, thanks for your help.
 

skelton92

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Joined
Jul 28, 2013
Messages
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Re: 1989 Force 50 - question about carburetor adjustment screws

The white plastic "screw" is simply a plug for the air bleed jet. You only remove it for cleaning the carb and you screw it in tight--there is no adjustment.

The brass screw IS a low speed needle and preliminary setting should be 1 to 1 1/4 turns out from lightly seated.

The mystery spring is just that. It was never on any stock force engine. perhaps a previous owner put it there in a vain effort to help return the trigger to idle position. Remove it before it bounces up under the flywheel and causes trouble.

Thanks for your help Frank.
 
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