Hey all,
I have a STIHL KM56RC trimmer that was running fine, then decided to not start/run anymore, so I took it a part, gave the carb a good clean with parts cleaner spray, inspected the gaskets/diaphragm, all seemed good, but I still couldn't get it to start properly... it would only start with the choke on (half I think, it was the first click.. will check tomorrow).
Checked online, a few videos of possible fixes, so I tried them, no fix. I ended up taking it apart again, gave it another good clean today, made sure parts cleaner was making it through the hole, so i could see that it wasn't blocked. I used fresh fuel, checked gasket/diaphragm again, seemed fine.
Wound the High/Low screws all the way in, as well as the idle, tried again, still not quite right. It start with the choke after a few pulls, but dies without it.
I started it again with choke, and went full-throttle, then adjusted the high screw, still wasn't quite right when I let go, but eventually, it would run without choke, or throttle.. but eventually cut out. I tried again, and tried adjusting the low screw, for some reason it makes little difference, I could probably unscrew the whole screw and it wouldn't help... so I'm thinking, it's possibly to do with the low rpm screw section.. but I remember cleaning it until the cleaner came out of the other end, so I'm not sure why it would be blocking up?
Aside from cleaning again, which I can't see making a huge issue, what else would cause it to not run correctly? to me, everything seemed fine when I cleaned it
iirc too, if I backed off the idle screw from being all the way in, it would die.
Another thing I noticed, there seemed to be oil coming out of the exhaust port, or at least near that area (see pics)... not sure if this is normal for 2strokes, or possibly an issue ?
[edit] I went to do a compression test, but my tester seems to be busted. I think I need to replace some o-rings, then hopefully it'll work again.
Any suggestions?
