91 35HP Force Carbs

Captain Stagger

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May 27, 2008
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Please excuse my lack of technical knowlage, kind of new to this so you will have to bare with me a bit. I picked up a 91 force for a 15' trihull......I have gotton the engine almost working. Inside the carburator i see two flaps......one on the outer edge and one on the inside. I am assuming the outer flap is for air control, and the inner flap for fuel control. When i turn the key the engine tries to crank, just wont get there. However if i push on the lever atttached to the inner "throttle flap" giving the engine more fuel it will start right up and hum just fine as long as i press the throttle flap lever. With out this flap opened the engine wont start. Now the solution?.....There is only one part that can move the throttle flap lever which is conected to the hand held throttle shift knob at my steering wheel. How do i adjust the throttle flap lever to allow the fuel to reach the engine with out having to take the cover off and do it manuelly?

Thanks for your help
 

eurolarva

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Jun 24, 2003
Messages
4,182
Re: 91 35HP Force Carbs

The part you are describing is a choke. To engage it press the key in when starting. It will open the choke butterflies and the motor will start when cold. After you have run the motor and it is warmed up you should not need to choke it anymore for the rest of the day. When choking as soon as the motor starts stop choking by no longer pushing the key in. Also welcome to Iboats.
 

Captain Stagger

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May 27, 2008
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Re: 91 35HP Force Carbs

Thanks for the help with the choke, It is nice knowing where that is. But the issue seems to be more of a fuel variety than an air variety. The choke or front butterfly doesnt seem to have any effect on the start of the motor. The rear fuel butterfly is what gets it started. As in an old car you gotta give it a little gas when your starting it. Now when i bought the motor it came with an ignition, trim lever, two pull knobs (look and feel of running lights) and the throttle. On the throttle ther is a a silver knob than can be pulled out or pushed in. Is it possible to leave the motor in neutral yet still give it gas to start it?
 
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