ORIGINAL: w8ye
I have several Weed Whackers
The ones I liked the best for torque and low end power were the McCulluch 32's with the straight shaft but the throttle cables tend to break in the MCullochs. I've also had two that the crank pin came out of the counterweight.
I've got a couple Ryobi's that I've never had any trouble with.
The Homelites didn't give any trouble
The Weed Eater brand 21's were more of a little toy job and no a real entity as far as a weed whacker goes
all these are now obsolete types and no longer available as I have them
That is an interesting coincidence. I have been running a MAC 32cc for about 20 years. My throttle cable broke too. For years I used a string instead, it never broke. Once I got to fooling around with this junk I had spares and properly fixed the cable. I recently took it apart and cleaned out a the dirt. One of the gas lines needed to be repaced. IT has been pretty trouble free.