bertsmobile1
Lawn Royalty
- Joined
- Nov 29, 2014
- Threads
- 64
- Messages
- 24,705
As I keep saying
You can test them properly but you ned thousands of dollars worth of gear to do it and more than a little electronics understanding
As mostly they can not be fixed it is a case of works / don't work .
And remember they are magnetos so the "advance" is actually lack of retard
retarding a circuit generates a lot of heat
Heat destroys solid state components
Yamaha ran into this problem with their SR 500 motorcycles that use a flywheel magneto
They overcame it by using 2 sets of coils and a complicated electronic system to switch between the low speed coils ( < 2000 rpm ) and the high speed coil ( 2000-7000 rpm )
Even then the electronic retard to allow it to idle @ 1400 rpm regularly burned out the low speed power coils
You can test them properly but you ned thousands of dollars worth of gear to do it and more than a little electronics understanding
As mostly they can not be fixed it is a case of works / don't work .
And remember they are magnetos so the "advance" is actually lack of retard
retarding a circuit generates a lot of heat
Heat destroys solid state components
Yamaha ran into this problem with their SR 500 motorcycles that use a flywheel magneto
They overcame it by using 2 sets of coils and a complicated electronic system to switch between the low speed coils ( < 2000 rpm ) and the high speed coil ( 2000-7000 rpm )
Even then the electronic retard to allow it to idle @ 1400 rpm regularly burned out the low speed power coils