hi again,
iwent out to the shed this morning, and Bruce you were right the flywheel key was 1/2 sheared. I then reset the coil gap and went and started her up and low and behold I mowed for 1 hour (it was very wet thought) and she held together. I recon at high speeds the coil must have been creating resistance, and shearing the bolts and keys. So keep it in mind next time, it may be an incorrect coil gap!
Thanks for the help
Regards jay
Jay you will have three reasons for the key in the flywheel to partly shear one is running the mower without a blade plate and the other is if you have hit something and last but not least if the mower has a bar blade and it could be out of balance.
As to the coil gap I have not experience that in the past. The coil gap you can usually use a normal business card to set it.
