crf450 0 1 Cars Posted September 20, 2006 I've got roped into helping one of my mates with his 6 engine conversion in his 205, he's fitting 48's and we were wondering if anyone could recommend a starting point for jetting, the carbs are suppose to set up for a Mi at the moment but do appear to be set very rich even for the six engine, before anyone suggest it we do know it will need setting up properly eventually but he's blown all his cash on the conversion for now and we just want to get it something like, Cheers Martin Share this post Link to post Share on other sites
taffycrook 2 Posted September 20, 2006 not sure if you have dhla or dcoe carbs Martin. But rough guess 40-42mm chokes 165 mains emulsion tubes as they are most are middle range anyhow. 190 airs 40 pump aux venturi should be ok as most people do not swop these and they seem to work with a number of sins. Use a wideband O2 sensor to check settings before any hard use. Make sure you haven't got drilled jets before buying new. Cheers Andy Share this post Link to post Share on other sites
crf450 0 1 Cars Posted September 22, 2006 not sure if you have dhla or dcoe carbs Martin. But rough guess 40-42mm chokes 165 mains emulsion tubes as they are most are middle range anyhow. 190 airs 40 pump aux venturi should be ok as most people do not swop these and they seem to work with a number of sins. Use a wideband O2 sensor to check settings before any hard use. Make sure you haven't got drilled jets before buying new. Cheers Andy Ta for your help Andy. Share this post Link to post Share on other sites
