Hi Hammermechanicman, sorry for the delay in reply but been busy. New diaphragm obtained and fitted. Same result - will not start when cold. Opened the jet in increments of quarter turn attempting to start each time. Got to 1 and a half turns open and still no joy. Took air cleaner off and...
Briggs and Stratton Magnetronic 3.5hp engine for lawnmower. Serial number indicates built in 1992. Unused for a number of years - was running OK before being put into storage. Generally cleaned up; sump and petrol tank cleaned out; air and fuel filters cleaned; carburettor dismantled and...