Thanks for the videos Max, Exactly what I was chasing.
I removed the needle and face and like in the videos, it was pretty dirty. Cleaned up the seal and the o-ring and replaced just hoping that would do the trick. Put it back together and no active leak on pumping the bulb. There was fuel on the bottom so it might weep a fraction somewhere but ill tackle that when I order new parts.
Went to crank it and less response than before.
Double checked for spark. Got it no worries at all.
Jumped onto pushmowerrepair to browse the parts list and before I committed I thought it best to do the job properly and fully investigate the carb.
Pulled it off the motor and popped the cap to check out the diaphram etc.
First I noticed the diaphram was different than the carbs in the videos. Instead of the diaphram was held on by a very small clip and has a solid rubber centre to assist it holding shape. Attached a picture. Is this an earlier model before they changed it slightly?
After it was removed the carb could clearly be seen to be full of dirt. No filter and no cap on the intake line so obviously while stored mud wasps had decided to make a next in the centre of the tube. It was to far down to see but a solid lump blocking the whole tube.
So, I've cleaned it out. Cleaned out the carb and now I am waiting for it all to dry before I refit and try again.
Also, on pulling the carb apart, the rubber nipple thing (Called a cut out plug on the webstie) was split. It appeared to still function but I might look at replacing it.
