MacCullogh carburettor

[Ben van Bilderbeek]

I am looking for a reed carburettor of a MacCullogh MC91 kartengine. In my memory this carburettor has a very big diameter - approx. 35 mm / 1,5 inch. Fore sure much bigger than other kartengine's in the '70 years. Who can give some info?? Diameter connection, diameter venturi, fabricator??

[Jeff Stamper]

Take a look here

http://www.rearenginekarts.com/McCulloc ... 20Carb.pdf

[Jeff Campbell]

note that the pressure pulse carb document (previous post) refers to the original carb that had no venturi, most of the pressure pulse carbs used on mac engines had a venturi.

Here is link to BDC-14 spec page:
http://www.rearenginekarts.com/bdc-14.htm

..and the old duck bill article:
http://www.rearenginekarts.com/duckbill.htm

and of course you will find all the carb part explodes included in the engine IPLs on this page:
http://www.rearenginekarts.com/mcculloch%20ipls.htm

These carbs tend to be a little touching and more difficult to tune than the Tilly carbs, but I like to use them on my macs since they were the stock carbs.

Jeff