Jets to fit HT bicycle engine carbs

Finally we are able to offer Dellorto 5mm jets to fits stock HT carbs. We still have some supply line kinkages to work out, but so many people have asked over the last 2-3 years we fought tooth and nail to get them. Anyway we offer 0.60mm to 0.76mm REAL Dellorto 5mm main jets to get down with tuning your carb.

SICK BIKE PARTS - SBP - Carb Jets - Dellorto 5mm main jet

Re: Jets to fit HT carbs

I run a .66mm. It really depends on your state of tune, engine breathing and exhaust set up. What does your plug look like?

Re: Jets to fit HT carbs

Well if everything is running OK and spark plug looks OK, then why the need to change the jet? I would tell you that if it ain't broke, don't fix it - but you are probably trying to tune for some power increase. By all means, open up the ports (match them to the manifolds and gaskets), get a tuned expansion chamber, richen the oil up a tad, increase compression, etc - THEN what does your plug look like?