What's wrong with it?... (a) It leaks a bit of oil. I've been told this is because the casing is cracked. But that's not a big problem as it leaks oil onto the chain, which is where it's needed. (b) It 'died' on me a couple of weeks ago and it needs a new coil. But the local service company can't obtain one, so I'm stuck with a non-functional chain saw.
