Lane A and B check after start
During MOST Lane A checks I feel a "Bump" as I turn OFF the Lane A switch..
I don't feel the "Bump" on Lane B when I do the same test.
Engine has less than 100 hrs.
Please advise.
Thanks,
Bill
During MOST Lane A checks I feel a "Bump" as I turn OFF the Lane A switch..
I don't feel the "Bump" on Lane B when I do the same test.
Engine has less than 100 hrs.
Please advise.
Thanks,
Bill
Re: Lane A and B check after start
by Roger Lee » one month ago
Normal. I see this all the time. It could possibly be the way you do the lane check. It isn't exactly like the carb engine mag check.
Roger Lee
LSRM-A & Rotax Instructor & Rotax IRC
Tucson, AZ Ryan Airfield (KRYN)
520-349-7056 Cell
Re: Lane A and B check after start
by 912iSPower » 6 weeks ago
Yup. There's always a bump. The bump tells you it's working. 😛
Re: Lane A and B check after start
by Maximo Lema » 6 weeks ago
All ROTAX injection engines I saw have the same bump. I think it's because Lane A always has priority over the engine control, but Lane B doesn't.
Re: Lane A and B check after start
by Marty Jorgensen » 5 hours ago
I was told by Rotax that Lane B has a slightly Richer map than Lane A thus the slight bump in RPM's when B takes over.
Re: Lane A and B check after start
by Rotax Wizard » 2 hours ago
All
Lane A is fitted with the bulk of the sensors and when both are running Lane A is the primary and only with all the sensors working can give you the ECO mode. Lane B is mostly a map and always runs richer and can not run ECO mode on its own, When doing MAG check it is normall to see a slightly higher RPM than on A. The traditional MAG drop we see, in the 912ULS for example, does not happen.
Cheers
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