[plummer]

Can anyone advise?  Starts first pull but then can't keep it running.  Need to sell it have interest so need advise asap.

Many thanks Ian Plummer

[R Tallentire]

Is this with or without choke? The normal practice for a B & S 5hp is set full choke, half to full throttle. As soon as the engine starts push the choke off and back the throttle down to the speed you want. If this is what you are doing and you still have problems, clean the plug. If that doesn’t work, the fuel mixture is probably rich and re-setting it is a bit tricky, or the governor has been set wrong which is even worse to set up and may be best left to an expert.