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Mounting Techniques for Bicycle Motors Every frame is different. Share and ask questions about mounting your engine kit to your frame or rack

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  #1  
Old 08-31-2010, 09:41 AM
mattkelly mattkelly is offline
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Default carburetor question?

Hi! new to this site, and i'm also not very technical. . . . . the boyfriend is the one doing all of the work. . . we are putting a motor on a 1958 schwinn twinn deluxe, that we have brought back from the grave. . . . trying to find the perfect place to put the motor, without altering the frame.

we have found a spot if we can make or find an elbow for the carburetor, and have it go off to the side around a bar that is in the way.

Is this possible? what is the name of the part that connects the carb to the motor? would we have to fashion one ourselves, or are these tubes standard at a hardware store?

we need something with a 90 degree angle and the same bolt pattern. . .
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Old 08-31-2010, 09:53 AM
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BarelyAWake BarelyAWake is offline
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Default Re: carburetor question?

"intake manifold"

Which is a touch odd as "manifold" would infer more than one inlet/outlet... but I digress lol

Anyhoo, while I would advise making your own by modifying your existing one or making one from scratch, this may be challenging if you've no access to welding equipment or friends who do - there's the "offset intake manifold" that's worked for a few folks with the same problem, while it may not be perfect... for $7 it may be worth a shot

http://www.spookytoothcycles.com/com...category_id=93


Welcome to the forum BTW
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  #3  
Old 09-01-2010, 02:22 AM
FreeWheeler FreeWheeler is offline
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Default Re: carburetor question?

Quote:
Originally Posted by BarelyAWake View Post
"intake manifold"

Which is a touch odd as "manifold" would infer more than one inlet/outlet... but I digress lol


Welcome to the forum BTW
Too late, you digressed. Go immediately to jail.

Manifold is a very old word with roots in Anglo and Saxon and Latin. Many + fold didnt evolve into multi inlet meaning until late 1800's as result of industrial revolution. The early meaning was closer to multi plex which still applies to the one tube inlet where air and fuel go into the engine after being folded and mixed in the carb.

I digreased.
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Old 09-01-2010, 02:32 AM
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BarelyAWake BarelyAWake is offline
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Default Re: carburetor question?



Bdanged industrial revolution and their newfangled ways *shakes fist* kids these days, I tellya
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  #5  
Old 09-01-2010, 02:41 AM
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bairdco bairdco is offline
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Default Re: carburetor question?

Schwinn Twinn? that's a tandem, right? gonna be a tough build. good luck.
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  #6  
Old 09-05-2010, 11:34 AM
mattkelly mattkelly is offline
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Default Re: carburetor question?

Well, thanks for the help!! It's done, I think he put 14 he's into the build, still modifying as we ride. It's awesome! I will post a pic on this thread when I figure out how. (p.s. He made his own intake thing/manifold) took a minute to get used to, because my knee sort of hits it when I pedal, but I got used to it and adjusted my body mechanics. Thanks again!
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Old 09-05-2010, 12:01 PM
mattkelly mattkelly is offline
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Default Re: carburetor question?

here is a couple of pictures! 1950's schwinn twinn deluxe with a 66cc motor.

(i meant to say 14hrs earlier)
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Old 09-05-2010, 03:39 PM
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2door 2door is offline
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Default Re: carburetor question?

Nice job on an unusual build. Tandems can be a challenge but it appears that this one is a success. Congratulations, have fun and ride safe.
As for hitting your knee when pedaling: Don't pedal...let the guy and engine do the work and you just sit back and navigate
Tom
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