Help

[george kennie]

Hi Bill,
Nope!, just flying straight and level. It doesn't load up, it doesn't
lean
out, it just stops like the fuel circuit has been interupted. I don't
understand why it runs out the whole tank while sitting on the ground.
Georgie

Bill Glaze wrote:

> Hi, Georgie
> Doubt that the problem is caused by side mounting.  I've got several Y.S.
> engines from .53 to 1.40 side mounted, and never a problem.  Are you doing
> some particular maneuver when it quits?  Does it seem to go rich or lean?
> Any other symptoms?
>
> Bill Glaze
>
> george kennie wrote:
>
> > Hey Guys,
> > Need a little help here. I have a YS-63 mounted in a profile airplane.It
> > will run out a whole tank of fuel on the ground turning a 12X6 APC at
> > 12000 RPM with no apparent problems, but take-off and I can only get a
> > couple of passes before it flames out. I'm running 20/20 Powermaster and
> > I changed the OS-F plug with no improvement.The clunk is not hitting the
> > back of the tank.
> > I think I remember something on the list about a year ago about YS
> > four-strokes not liking side mounting and that a modification was
> > required to the throttle barrel or something like that. Can somebody
> > enlighten me or make suggestions.
> > Thanks
> > Georgie
> >
> > =====================================
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