I have had a Victa Self Propelled Mower with Briggs and Stratton 750IS Electric Start for 5 years with no problems at all - mower used to mow fairly large yard.
Oil changed yearly and always fresh petrol used.
Quite suddenly, the mower became hard to start ( normally only 1 long press on starter ) and after starting, engine speed changes constantly and within 5 mins it slows and dies. Able to start again after several attempts, but same symptoms again.
I have removed spark plug ( looked perfect ), cleaned and checked gap. Re-installed, but still same problem. Also air cleaner filter checked but only blow out required.
The various actuators on top of the carby all appear to be free and moving correctly ?
Any thoughts on this problem greatly appreciated.

Last edited by Gary8600; 09/05/25 05:59 PM.