3 If a new belt was installed run belt in at 1500 rpm for at least two minutes then recheck deflection NOTE If a strand tension gauge is not available adjust belt to give a 3 8 deflection between blower and idler pulley under a 15 pound load and have belt set with a strand tension gauge as soon as possible 4 Replace or repair frayed or broken Delcotron wires and tighten all wire connections Service Fuel Lines and Fuel Filter Inspect fuel lines for kinks bends or leaks and if engine has been flooding replace fuel inlet filter NOTE If a compliant of poor high speed performance qxists on the vehicle fuel pump tests should be performed Service Air Cleaner Refer to Engine Fuel Section 6M Service Crankcase Ventilation Fig 5 1 Disconnect hose from vent pipe 2 Inspect for deteriorated or plugged hoses 3 Clean positive ventilation orifice using a 5 64 drill inserted through orifice in vent pipe and twisted by hand 4 Connect hose to vent pipe then inspect all connections CARBURETOR Sl Mechanical Adjustments 1 Disconnect accelerator control rod swivel at cross shaft lever and connect accelerator pull back spring to swivel hole in cross shaft lever A fig 6 Iy D r r 1B s Fig 6 Carburetor Linkage ORIFICE h v I 6i v T Uln i Fig 5 Crankcase Ventilation NCHRONIZATiON 2 Disconnect choke rods at choke shaft levers on both carburetors and open choke valves B fig 6 then tighten carburetor hold down nuts 3 Back idle screws away from throttle shaft levers on both carburetors 2 1 2 turns should be sufficient to leave clearance between the throttle shaft levers and idle screws 4 Disconnect throttle rod from cross shaft lever on R H carburetor C fig 6 NOTE A strip of paper approximately 3 8 wide and 8 long should be used in the following step Feeler gauge stock will not provide a SENSITIVE feel and should not be used 5 Set idle screw on L H carburetor by placing strip of paper between idle screw and throttle shaft lever and turning screw in until a firm drag is felt on the paper Turn idle screw in 1 1 2 additional turns fig 7 NOTE This will give an initial idle speed of 500 600 rpm 8 Connect throttle rod to cross shaft lever on R H carburetor and disconnect throttle rod from cross shaft lever on L H carburetor D fig 6 7 Set idle screw on R H carburetor in the same manner as L H carburetor 8 Adjust throttle rod on L H carburetor by holding up on rod so throttle shaft lever is against idle screw and turning rod in lower swivel until rod freely enters hole in cross shaft lever fig 8 9 Connect throttle rod on L Ii carburetor to cross shaft lever CqtVAR SHOP MANUAL