Hello Forum,
I have just successfully completed my project. I wish to thank you all for your input, Deejay, Bonnar bloke, Grumpy and especially Cyberjack, who has been a tower of information.
For the benifit of the forum I will list my actions.
Firstly we had a machine whose motor was OK but the blades would not turn. I thought this was a clutch problem and listed this to the forum as such. Cyberjack directed me to a video from Deejay which was simple to follow, so I dismantled the motor, did not know what I was looking at, re assembled the machine which re adjusted the clutch lever, and away it went, I still don't know what I did.
With the machine in working order I asked about the correct spark plug to use, I had always been suspicious of the one in use when I bought the machine, but always replaced it with the same type plug. From this I learnt where the ID numbers were and reading them a couple of times you people identified the machine, and suggested a CJ8.
Having paid good money not too long ago to sharpen the blades I was not happy with the result so the machine went back a couple of times for adjustments.
I later unscrewed the chain cover to look and found all nuts and bolts were loose. I tightened them but was never truly happy with the cut.
With this in mind I thought I might get a little more adventurous and do a backlapping. On inspection I found the chain E could not be adjusted any more because of the blade adjustment. The other two chains were a bit slack, even after maximum adjustment, so I thought I would replace them, later deciding to add a half link to the E chain.
While I was doing this I would backlap.
Traps I fell into;
1. On reassembling the two new chains I found the mower would not pull backwards, Cyberjack says, loosen the main bolt, I mistakenly thought all bolts should be tight, loosened off all was well.
2. Having bought two new chains I asked for a half link, forgetting at the time it was a different size, I had to eat humble pie and correct my order, all is well now.
3. After backlapping To re adjust the blades I was loosening the lock nut and when I re tightened them the adjustment moved, I now know the proped sequence for these adjustments.
For a guy with no experience in these machines we have done well, till the next time, Thank you all again,
Cheers, WallyPat.