Here is the Jonsereds 50 brochure. It talks about an automatic chain sharpener. I have never seen or heard of one of these, anyone else?
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Yeah, the power to weight ratio would be pretty poor compared to the smaller brush cutters of today.......but that powerhead would probably outlast 4 or 5 brush cutter engines of today's manufacture. Be a real hoot to try one of those with a good shoulder strap! I have terrible luck with weed eaters...I just flat wear them out and the parts are always ridiculous to buy for rebuilding. I had this TroyBilt weed eater once...four cycle. It starting running poorly and I couldn't figure out why, ordered a rebuilt kit for the carb...was like over $25...holy cow. Put that on and no change. Finally found out that the 'finger' choke was nearly hidden and was about half on...had hit it somehow! Never had any reason to use the choke as it always started right up. Then the spark module failed and the module was close to $100....so it sits in a box waiting for a donor or the landfill. Bought another TroyBilt(yeah I know, you can't fix stupid), this time 2 cycle. It has this dumbest start procedure I've ever seen on an engine. Do it any other way than they tell ya and you'll pull on it forever.
Other than the weight, I'm thinking a chainsaw powerhead would be awesome as a brush cutter....anyone ever use one??
Kevin