Hi Andrew,
These are my thoughts after reading your symptoms.
Sounds to me like your battery is failing under load.
I'm not familiar with your machine.
But, you say it is starting easily with the manual starter, so you can eliminate the primer being at fault.
Sounds like your starter motor is OK, as it is turning your engine over.
A fully charged battery is no indication of how it will perform whilst doing its designed task.
The only true way to test any battery, is to measure its terminal voltage under load.
Do you have a multimeter?
Cheers
Last edited by mark electric; 12/08/14 12:31 PM.
