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Old 02-23-2010, 01:58 AM
Merkava_4's Avatar
Merkava_4 Merkava_4 is offline
LawnSite Bronze Member
Join Date: Sep 2009
Location: Clovis CA
Posts: 1,276
What can you do with a 21cc trimmer?

Are those trimmers just meant for trimming
6 inch tall grass? How big of an engine do
you need for cutting down densely packed
clover and 3 feet tall weeds?
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Old 02-23-2010, 03:40 AM
topsites topsites is offline
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Join Date: Mar 2005
Location: Richmond Virginia
Posts: 21,673
Well no, on the more powerful trimmers the engine is actually big and
powerful enough that it could be used to power a moped, but they're
also closer to 49cc's than 21...
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Old 02-23-2010, 03:52 AM
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Alan0354 Alan0354 is offline
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Join Date: Jun 2009
Location: San Jose, Ca.
Posts: 4,458
Unless you just do front and back yards of homes with grass, I think you better stay with the 25cc Honda engine type to be safe. When I was trimming a house with 2 feet tall weeds, even my big Honda brush cutter drop some rpm. You can tell it is not like hot knife going through butter.
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