My Airens snowblower has a 8.0 HP Tecumseh Snow King engine on it. There is a recall that is involved with the fuel shut-off valve, in which gas could leak out of the shut-off valve and cause a fire. Would it be ok to take out the gas hose system for the fuel shut-of valve and install a single hose running to the carb? Also, when i prime the engine before startup, fuel leaks out of the intake end of the carb. Is this another safety issue?