hocbj23
+1y
Get some carb cleaner,take the air cleaner off,start the truck and let it get warm, have a buddy hold the accelerator at 1500-2000 rpm, and spray the carb cleaner into the carb opening.Truck will smoke,choke down, fart, spit and backfire, but that should clean carb internals.Then spray the outside of the carb and clean off the gunk. U may notice the secondary opening at this point.If not,ckeck for tightness of all the carb mounting bolts to the intake manifold and be sure no vacuum hoses are leaking.bj