Help

george kennie geobet at gis.net
Wed Jul 30 18:20:11 AKDT 2003


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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