Vent Switching Valve
With engine off, remove vent hose from carburetor float bowl and blow air into hose. Check that air passes freely through hose into canister. With engine running, apply vacuum to vent hose and check that air flow is blocked.
With engine off, remove vent hose from carburetor float bowl and blow air into hose. Check that air passes freely through hose into canister. With engine running, apply vacuum to vent hose and check that air flow is blocked.