My current experience with an old Victa 2 stroke has got me wondering a bit about the diagnosis procedure with small engines. I wonder how the pros go about diagnosing problems. I realise that over time a certain amount of intuition comes into it but for those who are starting out, what is the best pathway. Here's what I do:
Check for spark, easy enough by grounding the plug onto the body of mower.
If okay, move to carburettor, a little bit of petrol into the spark-plug hole to see if it fires up. If it does, investigate carby and repair.
If no firing up occurs then suspect compression, will try and check with a compression gauge but notice that Victa, Briggs recommend checks other than with compression gauge. Just curious about how others do it and in what order?
