shootthrees
Tom Duncan
- Joined
- Apr 7, 2010
- Messages
- 436
- Location
- Medina, Texas
- Aircraft
- Tango 2
- Total Flight Time
- 170 Ultralight FW, 116 Gyro, 15 GA
Just curious as to who out there is building or planning to build the Ultralight Butterfly or any other Gyro with the MZ 202?
I am collecting engine tips and posting files to the following Yahoo Forum for the MZ line of engines:
http://groups.yahoo.com/group/Compactradialengines/
Below is my latest post:
Re: New file uploaded to Compactradialengines
I collected some tips and ideas from the Aerolite103 Yahoo Forum. My primary interest was about the installation of an electric fuel pump in place of the bulb primer and as a back-up to the Mikuni fuel pump.
The bulb primers have been known to fail (restrict flow or crack) during flight on two stroke engines. Another work around that I used in the past, was to put two tees with a line and two shut off valves around the bulb. The valves are closed to prime the system and opened to allow flow around the bulb. This solves the free flow problem the bulb can and has caused in the past. To completely eliminate the cracking problem, two more valves are needed on each side of the bulb.
The inline electric pump set up eliminating the primer bulb is much simpler and since the MZ 202 has a battery for the electric start, installing the electric pump as a primer and back-up is too easy as long as it is rated below 3 psi and if not a regulator would be needed.
I am collecting engine tips and posting files to the following Yahoo Forum for the MZ line of engines:
http://groups.yahoo.com/group/Compactradialengines/
Below is my latest post:
Re: New file uploaded to Compactradialengines
I collected some tips and ideas from the Aerolite103 Yahoo Forum. My primary interest was about the installation of an electric fuel pump in place of the bulb primer and as a back-up to the Mikuni fuel pump.
The bulb primers have been known to fail (restrict flow or crack) during flight on two stroke engines. Another work around that I used in the past, was to put two tees with a line and two shut off valves around the bulb. The valves are closed to prime the system and opened to allow flow around the bulb. This solves the free flow problem the bulb can and has caused in the past. To completely eliminate the cracking problem, two more valves are needed on each side of the bulb.
The inline electric pump set up eliminating the primer bulb is much simpler and since the MZ 202 has a battery for the electric start, installing the electric pump as a primer and back-up is too easy as long as it is rated below 3 psi and if not a regulator would be needed.