Phillip asked about fuel pumps running from crankcase pulsations. I am flying a Renegade with a Rotax 582 two-cycle engine. It has a pulse powered fuel pump mounted on the firewall. That engine burns 5 1/2 gallons per hour at cruise, so the output of the pump would be more than adequate for a KR. The hose connecting the crankcase to the pump must be fairly rigid--rubber hose or ordinary urethane tubing will dampen the pulses.
I would assume that the crankcase pulses in a four or six cylinder engine at 3600 rpm would not be too far off the pulses in a two cylinder at 6600 rpm. Any Rotax dealer should be able to provide you a pump for around US $30. Jim Vance [email protected]
