New with 2 year war. new owner

Hedge trimmer blades are really NOT worth sharpening, after you get done paying for the tech rate/ labor, you're better off just replacing them. It would take forever to sharpen each of the 2 blades with all those teeth... Don't waste your money, get new blades.

Small engine tech of 15 years.

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The likely issue is the gear pin has been sheared. The part is no longer available from Craftsman. (P/N from sears: 616255-001)

I had a similar issue with a similar electric trimmer. I removed the old pin and used a split pin and ground it down to the proper size. It's now worked for about 2 years just fine. This requires complete dis-assembly.

I have a stihlfs40 "old one" 4130 model that the owner of the broken clutch fs40 could buy for spares.

My trick is to make sure that I always lube the blades after each session with a 3/4 engine oil + 1/4 kerosene mix - making sure that every tooth gets a drops or 2, then run it for a seconds to spread the oil & leave the blades overlapping. Doing this allows the blades to self sharpen I've found. 2 stroke oil , unmixed is about the perfect viscosity aswell.

https://register.homelite.com/contact_us/new

Go to this page and fill out the form then choose need manual in the drop down menu for type of inquiry

Carburetor high speed adjustment ( screw nearest the filter ) open ( counterclockwise ) 1/2 turn.
Adjust again as needed to run when hot.
make sure the gas mixture ratio is as required.
Henry

Try this:http://www.blackanddecker.com/CustomerCenter/Default.aspx

could be the coil