cylinder 1 and 2 are burning much too dark

by milo avram in 912 / 914 Technical Questions 13 years ago

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Re: cylinder 1 and 2 are burning much too dark

by shayne morris » 13 years ago

shayne morris

0 17 0

dear Shayne,

I appreciate,

interesting,

Â¿ how come this occurring recently only ?,

I'm feeling a weird vibration beyond 3 500 rpm too, that's why I balanced the prop.,

thanks

milo

Feel free to private message me if you need more assistance.

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Re: cylinder 1 and 2 are burning much too dark

by Roger Lee » 13 years ago

Roger Lee

128 5.28k 4.98k

Hi Shayne,

The vibration may be a carb imbalance. Have you synced your carbs in the last 10 hrs?

Roger Lee
LSRM-A & Rotax Instructor & Rotax IRC
Tucson, AZ Ryan Airfield (KRYN)
520-349-7056 Cell

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Re: cylinder 1 and 2 are burning much too dark

by shayne morris » 13 years ago

shayne morris

0 17 0

Missunderstanding here..Helping Milo out...

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Re: cylinder 1 and 2 are burning much too dark

by milo avram » 13 years ago

milo avram

2 20 0

ok, finally I got a time to check the idle mixture screw, both where adjusted at around 2 1/4 turns, I left them at 1.5 turns,

now I have to get the trike out of the stuffed hangar, examining the engine for changes,

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Re: cylinder 1 and 2 are burning much too dark

by milo avram » 13 years ago

milo avram

2 20 0

thanks a lot,

the engine is definitely working much better now,

still, the minimum revolutions are much to low, 1 200 rpm,
on thursday a friend and rotax mechanic will check carburetors synchronicity,
once again, to get ready for test flights,

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cylinder 1 and 2 are burning much too dark

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