This morning I took Arlene and Tim to the
hangar with me. We had a short window
for them to help run the engine and adjust the carburetors. I hooked up the CarbMate and we pulled the
airplane out onto the apron. I zeroed
the CarbMate and checked to see where the lights were. I had Arlene and Tim sit inside while I started
the engine. We ran the RPMs up to 2400
and it didn’t take too long for the engine to warm up to 122o . I turned the dial on the CM to 2 and the
lights came on to the right of center. I
manually pulled the throttle to see what way to adjust the linkage. I shut off the engine and made the
adjustment. I restarted the engine and
the light was green. I turned the knob
to 1.5 and it stayed green. I turned the
knob to 1.0 and it stayed green. I
turned the knob to 0.5 and one light right of center came on. I adjusted the linkage and the light went to
green. The carburetors are now
balanced. We shut down the engine and I
got in. I restarted the Rotax and ran
the RPMs up to 4,000. I checked the
ignition as required in the PAP. It is
acceptable. I advanced the throttle to
WOT. The indicated RPMs was at
4,895. That is acceptable per the
PAP. We now have a Rotax engine with
balanced carburetors turning at an acceptable RPM so I would say we are good to
go. I do need to complete the other
things listed under the Engine Run section of the PAP before it can fly.
