General Category => Engine & Transmission => Topic started by: Red on February 06, 2013, 09:02:19 AM
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Just figured I would pick yalls brains a little bit. Will any Tillotson MT carb work with my motor and what model # is original to the M motor? I have a Tillotson MT 57a and don't have a carb for my dads bike but have a few old cushman scooter motors with carbs
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MT1 came stock .
I went through this same thing . I have an MT9B and an MT48A . I've seen differences in venturi sizes , choke and throttle control attachments and the metering needles and tubes . These differences are among the various Tillotson carbs .
Here's a link to some discussion :
http://www.simplexservi-cycle.com/index.php?topic=484.165
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Pete,
The last time you asked about the venturi, I forgot that it is cast into the fuel bowl!!
Check this thread: http://www.simplexservi-cycle.com/index.php?topic=126.0
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Red ,
Apparently , MT57A was the last carb Simplex used .
The thread Rick just posted ^ talks about it .
Rick ,
I've looked in the bowls of both my carbs and can't make out anything legible . :(
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Thanks pd,that link was very helpful and now know what to look for if we cant get an original for my dads bike
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If your original MT57A is not useable, you can buy a new reproduction thru Dennis Carpenter (the guy who makes reproduction Ford rubber) for about a hundred bucks.
Mike Sal
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Hey yall,I have a question.There is a screw in the bottom of intake manifold where the carb bolts up. What is that for?
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That is the 64 dollar question. I kinda wonder if it was used at the factory when they put the motors together. Maybe it was a port to help fine tune them or test fire them.
Mike Sal
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My dad said he thought it might have been to drain fuel out of motor if flooded but not sure