I have one of the above. not sure what they are called in English. Souped up strimmer with a blade?
Anyway, I've just started using after the previous season and although the motor is starting and revving up ok it feels _slightly_ under powered and more to the point although the blade is spinning up it is being stopped by the smallest of weeds; whereas in previous seasons it would more or less tear down a tree.
I've replaced the carb (the old one had worn out internal gaskets (the one with the metal disc) and it was cheaper to get a whole carb than a rebuild kit, There is no spark arrestor on this model, but there is a lot of carbonisation and sludgy tar around the exhaust (as in previous years). The blade has been sharpened (it's one of the three teeth variant).
Yesterday it _mostly_ worked ok. there were moments of problem bust I got a good couple of hours after it (although I need to refill the fuel frequently - it feels like it's consuming 750mL every half hour, no idea whether that is normal.
