£2.50 + vat to replace a carb diaphragm! Bargain- you can do all mine sub-contact at that price.
RRP of the kit is 70p plus vat (pt no 795083) and a proper job takes appox 20 minutes which will include cleaning out the air filter and de-carbonising the plug.
I charge labour out for every 15 minutes worked so 20 minutes equates to a charge of 30 minutes labour for which I charge £18 plus vat.
pleasant
September 2008