On Wednesday, September 11, 2013 3:36:15 PM UTC+1, JBL2527 wrote:

The powered lawnmower has a Briggs and Stratton engine, normally
bullet-proof. A couple of weeks back the bolt holding the fuel tank to
the body worked loose and the tank was wobbling. I was aware of this
because the engine started to rhythmically go fast/slow. It would lose
revs then pick up then lose again... continually. As this was not normal
I stopped the mowing and had a look and spotted the loose tank,
re-tightened the bolt and continued. The mower still drops revs and then
picks up again.
I have cleaned the air filter and plug but no difference.. so what do I
to do next to get it to run at a constant speed ?
Cheers
JBL

Hunting is due to the mixture being too thin. And that problem can be caused just about anywhere between fuel tank & cylinder.


NT