Richard,
I would suggest you sign up for and post this question to the
Rotax-list@matronics.com
as there is some good Rotax specific knowledge there. Perhaps there's
someone who has had the same experience.
Blue skies & tailwinds,
Bob Borger
Europa XS Tri, Rotax 914, Airmaster C/S Prop.
Little Toot Sport Biplane, Lycoming Thunderbolt AEIO-320 EXP
3705 Lynchburg Dr.
Corinth, TX 76208-5331
Cel: 817-992-1117
rlborger@mac.com
On Mar 6, 2012, at 3:23 PM, Richard Iddon wrote:
My 912S hasn't run for almost 12 months. It started and ran well on ground runs.
Test flight was OK although there was some 'plucking'. Since then I have flown
three more times and am finding that the engine runs fine at full revs or climb
settings but when I back off at the top of the climb, it splutters and coughs
a bit and runs quite roughly as if it is missing a bit. Doesn't fill me with
confidence. I have pulled the plugs and they seem fine, nice even grey colour,
no oily plugs. Where do I look next?
Richard Iddon
G-RIXS
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