Dellorto Carb help please
Posted: Thu Feb 29, 2024 7:20 pm
The Type 1 I'm rebuilding has a Le Mans engine bored out to 950cc and has a pair of Dellorto PHM40 AD carbs on it. I'm at the point of doing the throttle cables and choke - but there doesn't appear to be any choke function on the carbs...
I've looked on the web at pictures of the PHM40 and on those it shows a choke tube with either a cable operated plunger or a lever operated plunger as a modification. Al and I had a look at these carbs this afternoon (as I know very little about the carb engined Guzzis) and he's not seen these carbs before. We think they must either be very old carbs or maybe modified just for racing use? Can anyone help please with whether or not a choke function could be provided? I'm also getting advice that a pair or PHF36 ? carbs would be a better bet if I want some tractability etc?
Thanks Dave
I've looked on the web at pictures of the PHM40 and on those it shows a choke tube with either a cable operated plunger or a lever operated plunger as a modification. Al and I had a look at these carbs this afternoon (as I know very little about the carb engined Guzzis) and he's not seen these carbs before. We think they must either be very old carbs or maybe modified just for racing use? Can anyone help please with whether or not a choke function could be provided? I'm also getting advice that a pair or PHF36 ? carbs would be a better bet if I want some tractability etc?
Thanks Dave