On Monday, 22 June 2020 16:54:46 UTC+1, The Natural Philosopher wrote:
On 22/06/2020 14:16, Lee Nowell wrote:
Hi All,

A quick update on my mower - thought I would start a new thread in case the specifics helps someone else in the future

The mower started first time - I was amazed. However... The engine runs very unevenly. It doesn't sound like it is likely to stall but runs what I would call lumpy with an uneven rev. As advised here, I did the following before firing it up...
1. Checked the plug. It was clean with no residue. I checked the gap and it was about 21 thousandths inch. The manual says either 20 or 30 but I can't tell which one I have to know for sure
2. The air filter is mostly spotlessly clean but a little but of what looks like oil on the inlet side where the holes of the casing are
3. The petrol tank had a tiny bit of fuel left in it (not enough to pump with the priming bulb) so have put fresh fuel in with the dribble that was there
4. No smoke seen of any colour or noticeable smell

Anyone have any idea where I should go from here?

Thanks

Lee.

well it prolly has a governor and they can get sticky

look for that and see



--
There is something fascinating about science. One gets such wholesale
returns of conjecture out of such a trifling investment of fact.

Mark Twain

Looks like Harry was correct - thanks. It does have a speed governor. I have tried moving it with the engine running and it does change the revs although at the lowest end it seems like it may stall. Also, the lumpy running is evident no matter what I set it to.

It seems to move freely and the last 25% of the levers movement at the "fast" end doesn't seem to make any difference. Not sure if this tells us anything though