Petrol lawnmower

[woosie]

I have a petrol lawnmower that has no choke. It will start ok but then will start to splutter and cut out after about 10-20 secs. Any ideas for a cure greatly appreciated.

 

[merlin50]

what make is it

 

[woosie]

Its a McCulloch lawnmac 3450P

 

[merlin50]

if its under warranty take it back and get a refund, if not take it to the dump. do not try and get it repaired, its junk.

 

[dbaplaya]

check the air filter is not blocked, had same issue on mine. gave the air filter a wash and it works fine now.

 

[Burnerman]

Has it a Briggs and Stratton or Tecumseh engine?
If it has, there's a gasket between the carburettor and the fuel tank that needs replacing.
John

 

[merlin50]

if its a Briggs and Stratton remove air filter and pour a tea spoon of petrol in the Carburettor this is the only engine that will start better this way. i have done this with thousands od new Briggs and Stratton motors

 

[woosie]

It is a Tecumseh, engine so I will give the gasket a try. Thanks for the responses

 

[wotan]

There is also a diaphragm in the fuel pump, if this is damaged it will not pump the fuel to the carb.

Wotan