Never seen a Flywheel do this before

mreber17
Posts
14
Joined
10/20/2017
Location
Reading, PA, USA
Edited Date/Time 5/4/2020 10:56am
So I diagnosed a stator issue on my bike. I purchased a new one and went to install and found this mess. Just curious if anyone has ever had this happen before.



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mx_563
Posts
2210
Joined
4/1/2008
Location
USA
5/4/2020 9:26am
I had an ignition problem once that I could not figure out. Replaced stator and CDI but it didn't fix it. Then one day I happen to shake my flywheel and I heard something INSIDE of it jostling around. Replaced the flywheel and all was well again. Flywheels can fail apparently.
5/4/2020 9:28am Edited Date/Time 5/4/2020 9:31am
mreber17 wrote:
So I diagnosed a stator issue on my bike. I purchased a new one and went to install and found this mess. Just curious if anyone...
So I diagnosed a stator issue on my bike. I purchased a new one and went to install and found this mess. Just curious if anyone has ever had this happen before.





Edit - am I looking at this correctly, did the actual flywheel itself come apart?
1
charlie68
Posts
161
Joined
6/28/2019
Location
North Windham, CT, USA
5/4/2020 9:36am
Looks to me like the flywheel bolts backed off and the flywheel shucked around a while before the bolts broke off and caused this mess.
5/4/2020 9:39am
charlie68 wrote:
Looks to me like the flywheel bolts backed off and the flywheel shucked around a while before the bolts broke off and caused this mess.
Exactly my sentiments.

The Shop

mreber17
Posts
14
Joined
10/20/2017
Location
Reading, PA, USA
5/4/2020 10:31am
The bolts sheared off and some are stripped out. I never had this case cover off since purchase. I never thought something like this was even possible.
rbspecial138
Posts
156
Joined
1/29/2017
Location
Spanish Springs, NV, USA
5/4/2020 10:56am
I had the Shift shaft selector arm bearing come apart on my 2014 YZ250F (common issue) and a ball from the ball bearing got lodged between my flywheel and stator and caused a similar mess, and actually locked up the bike. Sketchy.
Not saying thats what happened in your case, but just that things of that nature can happen.

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