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MA Glow Miniature Aircraft Glow Helicopter Support Forum


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Old 06-16-2004, 12:57 PM   #1
reefguy
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Default ys91 motor question

for those of you that have a ys91 motor, when looking thru the exhaust port, is there a small square notch on the edge of the piston on the right side? the compression is fine, but just concerned, i will try to load a pic of it.
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Old 06-17-2004, 03:09 AM   #2
conrod
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no.
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Old 06-21-2004, 08:49 PM   #3
reefguy
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thanks,
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