Hi All,
I'm hoping that you can help me solve the following issue. Two days ago at 10:00am on a 35 mile flight in my Phoenix the Rotax produced >5000rpm on before roll started on takeoff. On my return flight I noticed a max rpm of 4800rpm even after leveling off. I thought the density altitude could explain the difference as it was about 10 degrees warmer on my return flight. Yesterday I did a static runup on the ground in cooler air and found max rpm to be 4700-4800 rpm. There was the expected mag drop and increase when each mag was tested separately at 3000rpm. I plan to check for possible fuel contamination.
Do you guys have any other thoughts?
Thanks
George Feldman N33GF