Hayter Lawn Mower and others - Briggs Engines

[Nige F]

Got myself a bargain small self drive Hayter last year . 2 tips I can share . 1 the engine ran but when warm smoked out the exhaust - cure is to fit a new breather valve on the engine 2 This season it would NOT start. Cure spent £20. on a complete new carb genuine part off the net. The Briggs+Stratton carbs on TOP of the petrol tank are they try and pump the petrol up ( the ones with the primer bulb) and also suffer from fuel varnish/gum. Upside is they get dumped/auctioned because they become hopeless to use Next winter I'll be putting in some fuel treatment to keep petrol fresh.

 

[Burnerman]

Is that the breather on the tappet cover, Nige? Usually opened every 15 years or so
So true about the pump diaphragm, I buy them in 10's now.
Don't know if you've discovered GHS Ltd - excellent pattern spares site
John

 

[Nige F]

Hi Burnerman - that's the one . I sussed it because I remembered my old BSA that had a one way breather to keep a neg. pressure in the crankcase, to stop the oil leaks allegedly. Sure enough there was a little flap valve in the B+S breather. Don't much like the engine design - too clever for it's own good IMHO. My rotavator has a Lauson engine (became Tecumseh) and it is brilliantly simple with a clockwork starter .I'll check out GHS ltd.

 

[Burnerman]

A wind up starter Haven't seen one of those for 40 years!
That was on a Briggs rotavator.
John