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post #1 of (permalink) Old 09-06-2002, 11:26 AM Thread Starter
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MC2100 - Identify the power valve on this diagram

I have an MC2100 (manual) choke and need to identify the
specific location of the power valve. Please look at the attached image and let me know which part number is the power valve. The board responded to a recent post of mine that the power valve may be faulty/stuck. I now wish to find it.

Thanks for all your help. Sorry if this is a stupid newbie question.
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post #2 of (permalink) Old 09-06-2002, 12:18 PM
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Re: MC2100 - Identify the power valve on this diagram

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post #3 of (permalink) Old 09-06-2002, 01:09 PM
 
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Re: MC2100 - Identify the power valve on this diagram

Will's right... #48... screws in from the bottom... nasty little mess when it blows out....
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post #4 of (permalink) Old 09-06-2002, 02:29 PM
 
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Re: MC2100 - Identify the power valve on this diagram

If you are running a manual choke, plug the opening inside the choke housing that is connected thru the casting to manifold vacuum. It draws additional air into the manifold, unfiltered in your case. Remove the plastic manual choke cover and with the motor idling you will find the approx 3/8 inch diameter barrel shaped opening. It can be sealed off with epoxy or silicone. The original electric choke had no openings to the exterior,(other than the casting's threaded fitting that goes to the exhaust passage) and this port draws heated air through the choke to warm up the choke coil. Mights as well plug it. Or you can removed the choke housing and plug the small hole in the casting revealed. There should be a small oval gasket there where it attached to the carb body via a screw thru the choke housing.

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