SOHC.co.uk Forums > CB500/550

Carb coversion to SU

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matthewmosse:
A long while ago now I read about someone who claimed 90+ mpg from his sohc 550 by fitting a Su carb and home made log manifold. Anyone else kow anything about this conversion and who did it, I'm thinking of doing this on one of my bikes, probably in conjunction with adding a 650 top end to one of the 550 bottem ends littering my shed.............

SteveD CB500K0:
I was in email conversation with Steve Scott earlier this year. He makes single carb manifolds for Goldwings and also CB/4s

Jessco Motorcycle Works
gl1000singlecarburetor AT midco.net
http://www.tinyurl.com/Jessco

flc:
i have been looking at this for a while, still not sure have a look here
 http://www.britchopper.co.uk/forum/viewtopic.php?f=25&t=7075&hilit=collector

matthewmosse:
Cheers, better try doing now - well sometime soon anyway, a good link there. I'll probly have a go at a diy manifold first since I've trained as a welder / metalworker and it's embarrasing not to give it a go........

daz:
I have seen this done, a chap turned at at a vjmc night, he also by passed the oil way with an external pipe to stop the oil leaks.
It was about 3 years ago, not seen him since, Daz

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