new carbys

Colin Linz · Post by **Colin Linz** » Sat Mar 26, 2005 7:50 pm

Well I finally got around to getting my bike back on the road. The 40mm carbys I brought from Steve have transformed my bike, it is better everywhere except in one area. I took it for a shakedown run yesterday up a local mountain. It went great until I turned around and came back down. There is one section of a few kilometres that is quite steep and twisty. When coming down the bike was missing and backfiring, you could hear the flames burning in the exhaust system, I’m pretty sure they were spitting back through the vertical carby too. I’m thinking it was over fuelling. Once we levelled out a bit I had no further trouble. Anyone experienced this before?

seddy · Post by **seddy** » Tue May 10, 2005 11:08 am

The carbs are supposed to function normally up to 40 degrees of angle (I seem to recall reading), but that would make it a very steep hill indeed. You could try sending a note to Dellorto UK (can find them on the web) I used to buy parts from them and they were reasonably willing to answer questions.

I have the same carbs on my 900ss, and ride in the mountains of colorado, I havent had any problems, and the carbs are jetted for sea level. (on my list of things to fix).

Colin Linz · Post by **Colin Linz** » Tue May 10, 2005 3:57 pm

Thanks for the reply. I think it may have just been a one off occurrence as it has not happened since. I’m very happy with the carburettors now; the bike starts really easy and goes so much better. I took it to a track day a few weeks ago and the bike ran faultlessly all day, although the day of thrashing has created a couple of minor oil leaks.