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Old October 6th 06, 05:32 AM posted to rec.aviation.homebuilt
ULWA
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Posts: 13
Default Rotax 2 cycle Oil mixture

Thank you for the reply's. And Yes... MO = method of operation.
Aviation has way to many Abbr. and Acronyms to be adding to them and
confusing some here. I will keep them to a min.
After years of running 2 strokes, it was always a habit to give the tank a
good shake before
opening the gas. Didn't say it was a good habit....
If oil suspension has not become a concern or problem with the UL rotax's.
I can shorten my preflight list alittle bit for the short rest periods
anyways.
And take the little more uneven ground out to my preflight runups : )

Thank you for your inputs


..

"stol" wrote in message
oups.com...
I have several 2 stroke Rotax motors in various snowmobiles. In all of
them I run Klotz super techniplate with the castor oil additive. On
the stock ones I run 35-1 premix and use 92 octane gas. The oil has
never come out of suspension in the fuel over the summer, in fact the
gas will go stale first so I always top of the tanks with 100 LL at the
end of the season and that keeps the fuel fresh for the following
winter. On the mod stock sleds I run them at 30-1 and all other specs
stay the same. On my Open Mod 670 racing sled, it runs on alky and
nitro, that means I have to flush the motor after each race to prevent
the fuel from destroying the motor so the oil staying in suspension is
not an issue. I do run the same oil though, but at 20-1.

Ps. I do like BOb's sig line of " never re-elect a politician"....
Soooo true.....

Ben
www.haaspowerair.com
ULWA wrote:
Questions for the "people" "who" utilize the 2 cycle Rotax engine without
oil injection.
Looking for a good MO that you maybe using to keep fuel topped off for
moisture and yet the oil well
Blended with the fuel when the aircraft has sat for a short amount of
time.
Of course with the ATV variety
of 2 cycle it's easy to grab the front brake and give it a good shake
before
turning on the gas.
Obviously not my first choice to do with my airframe.

Thanks