"Weatherlawyer" wrote in message
oups.com...
On Mar 10, 5:35 pm, Alan wrote:
In message , MikeB
wrote

My Dad's acquired a Qualcast 35c Petrol mower and he's having trouble
getting it to work. The manual he has keeps referring to the engine
manual
but he doesn't have an engine manual. We've searched the Qualcast site
but
they only show the manuals he already has.

Possibly because Qualcast don't make the motor. They possibly fitted
something from the Briggs and Stratton range of small motors for lawn
mowers. - maybe the Classic/Sprint/Quattro range

http://www.briggsandstratton.com/om/pdfs/100/MS3479-GB.pdf

http://www.briggsandstratton.com

If it's not Briggs and Stratton it is likely a motor from another well
known manufacturer. Check the motor itself for the makers name/model.

Three major problems can hit a mower engine. Water in the fuel after
standing (over winter especially) and clogged filters.

You missed a dead plug.

The other one
is timing. When the blade inevitably hits something hard and heavy,
the blade can get knocked back a notch or two.

Utter bollox!
The timing has NOTHING to do with the blade itself, rather that it is a
component associated with the crankshaft and the location of the trigger to
the sensor.