Join Date: Aug 2009
Location: Sudbury, Ontario, Canada
Parking on a slope should not cause the fuel to run downhill (the tank is much lower than the top of the engine) enough to reach the engine.
If your 240 is has a carb, the float could be jammed, dirt in the bowl or needle/seat dirty or worn. Parking on an angle may help those symptoms and aid starting.
You'll need to fix this since an adequate slope is not always easy to find.
64 Saab 96 Monte Carlo 850 clone, 73 1800ES, 74 Land Rover Series III, 80 Mini 1380, 04 Jeep GC Overland & 2010 Nitro