Not a great deal more than 4 stroke given the application.
You don't want the blade going much faster than 3600RPM 2 or
4 stroke. Even if it did, you just change the pitch on the
blade to get more suction if that's what you want.
Your commercial unit is designed for suction bagging.
My lawnboy's suction ain't all that great - but it's not
a commercial bagger. I don't bag, so it don't matter.
[Mind you, we're building a wind tunnel with a 2 stroke
weed wacker motor. A 16x16 prop generates quite a wind blast
at 8000-9000 RPM. During tests just below freezing, we
calculated a windchill factor of -50C. at 100% efficiency on
the prop, that's better than a 100MPH wind blast.]
Chris Lewis, Una confibula non set est
It\'s not just anyone who gets a Starship Cruiser class named after them.
Yup, got a new one from zacm.com (crappy web design, but good people)
and the thing fired right up. I did have a tough time finding a
replacement plug for it, though. I found a Lawn-Boy branded one at Ace
for about $7 - no thanks. I did eventually find it at Lowes for about
$2.50. I also picked up a new air filter and reed valves, but seeing
what would be required to actually replace the reeds I think I'll wait
on those even though they are a little leaky.
I am happy to be mowing again.
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