sportsfreak90
New Member
How do you determine what gram spring to use under the diaphragm in a carburetor? I'm doing a pop off pressure test on my carbs but I'm not sure what gram spring I should be using and what PSI I should be getting.
The shop manual has a table with different size valve seat diameters but lists all four different spring loads. Any help is appreciated! I have a 787 motor with factory dual mikuni's.
The shop manual has a table with different size valve seat diameters but lists all four different spring loads. Any help is appreciated! I have a 787 motor with factory dual mikuni's.
