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Mend Mountfield SP470 Lawnmower Start

Mountfield SP470 ~ STARTING PROBLEM?

lawnmower won't start ~ primer bulb no pressure when operated. I have drained and removed the fuel tank and cleaned the carb and reassembled. Still same problem being experienced........HELP

brian slade
May 2009
Hi machine is splashing oil and very smoky.
Can you help please?

Muniru Kayode Azeez
May 2017
thanks Phil - B&S with carb on the tank engine - will check the carb diaphragm. sorry but Im a total beginer where is the diaphragm located and how do you replace it?????

brian slade
May 2009
What engine is fitted? If it's a Briggs carb-on-the-tank engine, I suggest replacing the carb diaphragm. If it's a Briggs with a primer on the FRONT, I suggest a ruptured air-cleaner gasket.

If it's NOT a briggs engine at all, come back here and I'll advise.

phil_saunders(a)bigfoot.com

Phil Saunders
May 2009

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