Hi All,
Saturday Update 8/3/25.
I have moved the Poppet Valve to C.
I have not bent the throttle cable as mentioned by Max.
I still have the original vacuum control button without a hole that is fitted on the motor housing and is connected to the Diaphragm Carby Cap vacuum line connector still on.
I tried starting it on cold position and it wouldn't start, i pushed the throttle forward just before it clanks to full throttle and tried again, It tried to start and once I push it over the clank to full throttle and pulled the cord it started.
So it seems to like to start in the run position only.
Does having a Vacuum Control Button without a hole effect the way it starts.
Secondly
Also I ran the lawn mower for 1/2 hour and tested its RPM and Compression. RPM was 3660 RPM and Compression was about 60 PSI.
I tried to restart the Lawn Mower on Run and it started after the Second Pull.
This time I ran it for another 20 minutes and its RPM was about 3820 RPM and Compression was about 55 PSI.
Again I started the Lawn Mower on Run and it started after the Second Pull.
This time I ran it for another 30 Minutes and its RPM was about 3660 RPM and compression was about 53 PSI.
At the moment my lawns are very dry and its a dust bowl. (The lawn mower is covered with dust).
So having a Vacuum Control Button without a hole affect the way it starts, and does the above RPM and Compression readings , still warrant a Piston Ring Replacement. I am happy to do it , if it will help compression & starting. Also to replace the Vacuum Control Button with one with a hole.
Thanks
Harry
