Originally Posted by Rodeobob
Why WD40 that???

It is possible that the wd40 has reacted with the rubber diaphragm in the decompressor and it is now not working as it should.

I was young, ignorant, but enthousiastic and really really keen to make this baby run smooth wink
The plunger part went a lot smoother though..
The mower starts easy now. Its just the fuel economy being significantly poor. But I'm learning along the way..