Mend Suffolk Punch 35S Lawn Mowers

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Mend Suffolk Punch 35S Lawn Mower Engine Starting Problem

Manual or details required?

I have a 14" Suffolk Punch 35S petrol mower with electronic ignition. There is a good spark with the plug on top of the engine, the gap is set at 0.025". Petrol is fresh but it will not start or even fire.

Does anybody have a copy of the relevant part of the manual telling how to check the ingition. Are there points for this machine? Can the spark plug need replacing? Could a valve be partly open?

Help me please !!

Alan

Alan
August 2009

Suffolk Punch Suffolk Punch 35S Garden Tools, Lawn Mowers Lawn Mower Engine Starting Problem

The plug certainly can fail - and that is the most likely cause of the problem. Change that first. Put a teaspoon of fuel into the plug hole before replacing the plug.

If it fires, the problem is in the carburettor.

If it does not, remove the plug and put your thumb over the hole and pull the rope. The compression should easily blow your thumb off the hole. If it does not, it's possible that a valve is stuck, bujt this usually only occurs if the engine has been standing for years.

You may also have a blown head gasket, and/or a weak coil. Head gasket is cheap, ignition coil is not. Testing the coil properly requires expensive test equipment.

There are no points. Hpoe this helps - there is no service manual as such for this machine.

phil_saunders(a)bigfoot.com

Phil Saunders
August 2009