Originally Posted by
rafeeki
Can i run the FA180 inverted?
Can I turn the carb intake tube sideways or even pointing down in an inverted installation?
What should be the position of the fuel tank relative to the carb?
Yes you can run the FA-180 inverted. I ran an FA-150 as well as an FA-91S inverted, both W/CDI. The only issue is that you must watch your starting technique to avoid flooding the engine as hydro lock can occur. It never happened to me though. I do cant the engine to the starboard side so that the exhaust valve is located @ 6 o'clock to allow any accumulated oil to drain.
Leave the carburetor/manifold location alone as twisting it to the side or down will drastically change the centerline relationship of the needle/fuel tank.