IDF Carburetors Low Speed Circuit Tuning
It is most important to verify all linkage and levers are installed without binding
and the linkage opens to full throttle and is allowed to close to the Idle Speed Screw.
This is the number one and two reasons for tuning errors, improper linkage installations and over tightened linkage nut, causing binding in the linkage assembly.
The Individual Runner carbs, IDF, have individual Idle jets and mixture screws for each barrel.
They also have an additional air bleed screws and lock nuts. This is not used for idle adjustment or idle quality.
The settings for these screws should be closed.
Standard IDF Settings:
Parts you might need – link to category Performance Parts
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