Thanks Beech.
I plan to take the head off tomorrow and have a look at the valves. If the valves are OK I will replace the head gasket and rings before I put it back together anyway. Sounds like I should have a look at the carby too, even if the valves are OK. The carby makes me nervous - looks fiddly - but I guess that's how you learn.
And thanks again to Gadge for pointing me in the direction of the manual. I think it would have taken some finding otherwise.
One general question. I have looked around for parts, and see that most things come in a genuine Briggs and Stratton option, or a cheaper option. Is there any difference in quality, or only price?
Cheers
