Re: Carb

Posted by gasman on
URL: http://silk-motorcycles.221.s1.nabble.com/Carb-tp5000808p5000829.html

Yippeeeeeee, getting somewhere with the carb. Gone back to 30 pilot, 108 needle jet, 480 main jet, 2 1/2 slide, 2f1 needle.
Runs fast on tick over with cold start on, idles fine with cold start off, throttle response not bad but I think a touch weak, will go for a 35 pilot as screw in to about 1/2 to 1 turn out, went down my dirt track spinning the back wheel, happy days.
The fault it would seem was Amal, after long suffering day's and night's for some reason last night my brain worked, the brass bit that sits in the airstream which the needle goes into has a cut out, this cutout was facing the airflow, so the airflow would actually cause a blockage across the hole for the fuel, tonight I took that bit out and fitted it with the cutout on the engine side so the airflow would go round the tube causing a vacuum at the needle sucking fuel out. It is now soooo much better and the carb may well live another day or two. Happier day's are coming, Kev