Fabian
Well-Known Member
G'day all
I've purchaseda Rock Solid Engines 70cc motor with the Optional Dellorto carburettor.
From what i now understand, it appears to be a Dellorto SHA clone carburettor with an adjustable mixture screw in addition to the idle speed screw.
I can't find a fuel schematic for the carby anywhere, as i need to know how the mixture screw regulates fuel flow, i.e. is it a simple stop type valve like R/C glow engines or does it effect a certain percentage of throttle opening using a seperate fuel circuit connected to the mixture screw.
I can't see how the mixture needle would be able to regulate fuel flow through the entire range of throttle opening but more as a method of limiting maximum fuel flow at maximum throttle openings.
Maybe i'm wrong in my assessment.
There are no markings on the carby to show the manufacturers name or model number, apart from the fact that it looks identical to a Dellorto SHA.
I would be grateful for any advise.
Fabian
I've purchaseda Rock Solid Engines 70cc motor with the Optional Dellorto carburettor.
From what i now understand, it appears to be a Dellorto SHA clone carburettor with an adjustable mixture screw in addition to the idle speed screw.
I can't find a fuel schematic for the carby anywhere, as i need to know how the mixture screw regulates fuel flow, i.e. is it a simple stop type valve like R/C glow engines or does it effect a certain percentage of throttle opening using a seperate fuel circuit connected to the mixture screw.
I can't see how the mixture needle would be able to regulate fuel flow through the entire range of throttle opening but more as a method of limiting maximum fuel flow at maximum throttle openings.
Maybe i'm wrong in my assessment.
There are no markings on the carby to show the manufacturers name or model number, apart from the fact that it looks identical to a Dellorto SHA.
I would be grateful for any advise.
Fabian