Dellorto DHLA problem

[Biemmer81]

i don't know man, i tried all type of solutions, nothing seems to work. if i try to set the advance to 10degrees at 1000 rpm the engine starts to shake, rough idle, and it has the same problem when accelerating. I read a book about dellortos and it states that the H type is for normal engines with minor modifications, so that seems to be the problem in my case.

[Biemmer81]

i'm back:))) after some testing it seems that the advance has little to no effect on the problem, but i replaced the diaphragms with ones that are also used and there is a slight improvement...i will buy a repair kit for them and come back then. in the meantime, i have 42 idles (talking about the accelerator pump jets), i tried 33 and the engine runs far worse.... so i think 45s are ok in your situation...