I've just taken the air filter out and its full of what looks like thick dirty oil. I've taken the top cover off the unit and its also got oily stuff in it, through the pipes and into the top of the carb. The thin pipe that comes off the bigger one has got a pale sludge in it. Any ideas whats causing this? Is it a symptom of a larger problem or does it all just need a good clean?
Cheers.
Cheers.