My flywheel came apart at the bottom where some metal blades are stacked together any idea why?

gica

Chief Petty Officer
Joined
Feb 24, 2016
Messages
550
So I had an issue with no spark and after taking the flywheel off I found metal blades all over and the trigger damaged stator not functional anymore.
Do you guys know why those stacked up blades are not secured?
Here are pics of the damaged parts and of the flywheel. I already got another one as I would not trust this one anymore. But how can I prevent this from happening?

 

jerryjerry05

Supreme Mariner
Joined
May 7, 2008
Messages
18,134
Wow never saw that one.
That part of the flywheel is what makes the spark happen when the magnets(tiny little brown strips)(color of the big magnetic strip)pass the trigger pickup.
That spot can be damaged easily and then come apart when the motor spins.
2nd flywheel: do a good inspection and check for any damage to the pickup.
Any modifications might cause problems???
 

gica

Chief Petty Officer
Joined
Feb 24, 2016
Messages
550
Wow never saw that one.
That part of the flywheel is what makes the spark happen when the magnets(tiny little brown strips)(color of the big magnetic strip)pass the trigger pickup.
That spot can be damaged easily and then come apart when the motor spins.
2nd flywheel: do a good inspection and check for any damage to the pickup.
Any modifications might cause problems???
Yeah, that makes 2 of us. Hey Jerry, can you use a CDI stator with a Prestolite
300-888797trigger 8 wire or does it have to be the 4+1 ground 888788 triggers?
 

Nordin

Commander
Joined
Jun 12, 2010
Messages
2,648
In my opinion you should be able to use the CDI stator with different triggers which are for Prestolite CD-modules.
The trigger sends signal to the CD-modules to discharge the capacitor voltage to right ignition coil.
The stator charge the capacitors in the CD-modules.
The stator and the trigger do not "communicate".
 

gica

Chief Petty Officer
Joined
Feb 24, 2016
Messages
550
In my opinion you should be able to use the CDI stator with different triggers which are for Prestolite CD-modules.
The trigger sends signal to the CD-modules to discharge the capacitor voltage to right ignition coil.
The stator charge the capacitors in the CD-modules.
The stator and the trigger do not "communicate".
Thanks Nordin, really appreciate all the advice, still trying to wrap my head around the way this break down occurred. Never seen a flywheel unravel at the bottom center and break up the trigger and render the stator inoperable.
I have gone through both of these motors and drives 100% I feel that I know them inside out. But just when I was sure that particular motor was all perfect no issues this happens. I already got the replacement flywheel, trigger and another CDI stator.
 
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