Garry Stout wrote:
>
> ... With respect to Rotax engines, they don't
> use a magneto, but rather a CDI ignition which requires something like a
> minimum of 600 RPM to cause a spark at the plugs.........highly unlikely
> that one could achieve that RPM by moving the prop by hand. Is there
> anyone out there who has successfully "hand propped" a Rotax to get it
> started? I'd like to know.
> ....
I'd further like to bet it at least isn't easy. For the record, 600
RPM makes it sound impossible, but the Rotax Service Manual states
only 150-220 crankshaft RPM is needed, or less than 1/2 that on the
prop. The actual effect may be that seen with those "high torque"
starter mods like the Sky-Tech, where on a fresh battery she'll crank
too fast for the impulse coupling to work, but not fast enough for the
mag coils to work either.
Except no impulse couling on the Rotax, so with sufficient free weight
workouts maybe?
Regards,
Fred F., A063
|