Just thought I would post an update on the super four. I was still having some issues with the replacement IC engine stalling under a load so I put it in the shed and thought I would leave it for a day I was bored. Well today I was bored and thought I would have a look, I started by stripping down and cleaning the carby on the first now spare engine and installed it on the mower and still had the same issues. So I re-checked the valve gap and that was with in spec. Decided I would look at the linkages and governor as I couldn't get a powerfull high rev and the mixture screw had to be screwed in all the way to stop it coughing and pick up a smooth rev. I next decided to loosen the bolt on the governor arm and moved it around and on the next start it was reving it's guts out and was even reving high with the throttle leaver at slow. After a bit of mucking around and adjusting I got it ideling nice at slow and at high it revs hard and loud similar to my Rover Shreeder, mixture screw is now 1 1\2 turns out and slightly adjusted in to the sweet spot. I gave it a test run in some high thick grass and she dident hesitate at all and went straight through it with out any problems. Hoping next time I use it, it starts with out any trouble and performs as it did today.
So with out really knowing what I did can anyone relate to what the problem was? I'm not 100% sure how I adjusted it but I'm guessing it was somewhere in the governor arm where I loosened the bolt. Just curiouser for future problems that may arise or if I have to adjust it again down the track.
