rotax 447 engine failure
in 2 Stroke Technical Questions
13 years ago
on the way home from picking the new super cat I encounted engine failure.whilst cruising for around 20 mins the engine started running rough then died. I made a restart, and as the engine still run rough I gave it full thottle and it ran fine again,when dropped back to cruise after a few minites it ran rough again ,full throttle applied and ran fine,so flew home at full revs (10 mins) and dropped revs for approch and ran fine landed no issues,but when broght the revs back up for taxing ran rough again. NOTE:noticed full leaking from air filter right before start up and when taking off noticed a slight miss , checked the float level,needle and seat,fuel tap removed inspected,plugs checked (brown) air filter cleaned and oiled NOTE" float level sits about 4mil below bowl top., ran up the engine and runs fine when applying revs up slowly but always runs rough when pulling back the throttle ,push the throttle forward fast and cough and slutters.? thinking I may need to overhaul the carby (jets)? any ideas????????????? should mention was told after,that its happened before! and noticed it come with a spare(old)carbie.?
