912ul soft start

Re: 912ul soft start

by MARK JACKSON » 9 years ago

MARK JACKSON

12 332 11

Hi Steve

The soft start is not necessary for a 912 without the slipper clutch, it was designed for the 912s with the slipper clutch fitted.

Ask Conrad, after all, he did design it.

Cheers Mark

Re: 912ul soft start

by Roger Lee » 9 years ago

Roger Lee

131 5.38k 5.44k

Hi Mark,

True and all 912ULS engines that came into the US from 2003 on has them. This is how they were imported through Kodiak.

---

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

Re: 912ul soft start

by Stephen Foreman » 9 years ago

Stephen Foreman

3 14 0

Thanks Mark :)

I certainly prefer the start up without the soft start even with the new fly wheel fitted on the new engine which I understand is different from the original and has modified the timing slightly.

I think you pointed that out to me on an earlier post.

Cheers

Stephen

Re: 912ul soft start

by David Josephson » 9 years ago

David Josephson

2 9 0

In an earlier post I think it was mentioned that carb balance was even more critical with soft start than normally. I recall this was so when I was last at an IRMT class where we balanced carbs. When we were done it sounded like just lower power, followed smoothly by full power, as one would expect from 30-odd degrees of retard from the usual setting. But before we got there initial was rougher. Definitely worthwhile however to keep stress on the clutches to a minimum.