"Bora Cider" wrote in message
...
Rod and Calif Bill thanks for the
replies/suggestions. Just a little more info. I
did replace the old gas by draining 15 gals and
replacing it. I did not clean the tank. I also put
a fresh prop on it. Prior to the prop incidents I
put about 100 miles and 20 hours runtime at plane
and off with no problem. I will check and or
replace the rotor. I also checked for fuel
delivery after I replaced the prop but will check
it again. Any other suggestions. Thanks again

Put a timing light on the motor first.
Bill