Flywheel clicking

[AndyJay]

I was out on my dt r the other day and the rev needle started to float around a bit when up in the power band, which was quickly followed by a crunching sound and a sudden lack of power.

It turns out the pickup coil came loose and became damaged by the flywheel which I presume is the sole culprit. Only issue now is that there's a loud clicking noise which appears to be coming from the flywheel/stator. Is this normal? It doesn't sound like it should be... I need to get the proper tools for taking the flywheel off so can't look into it at the mo.

[AndyJay]

https://youtu.be/ETxjPMswcdU

[oldman]

Expect some part has become attached to magnetic flywheel. Need to remove and inspect, never heard of pickup coming loose though? Live and learn eh

[Calum]

No, that doesn't sound good.

[AndyJay]

Yeah that makes sense, there's half a bolt I couldn't put my finger on so that's most likely where it went.

I've looked all over to try find a new OEM pick-up but no look, I'm going to have to get one that just fits the dimensions but need to make sure the ohms value is right... Does anyone know how to check what it should be? Struggling to find anything online

[Calum]

https://www.ebay.co.uk/itm/Yamaha-DT125-Stator-Base-Assy-1988-88-NOS-DT125R-Generator-Pick-Up-3BN-85560-00/254199412477?hash=item3b2f7736fd:g:segAAOSw7Sxcsuwd&frcectupt=true

https://www.ebay.co.uk/itm/Yamaha-DT125R-DT-125-R-Stator-Plate-Magneto-Generator-Windings/123584076575?hash=item1cc62f5b1f:g:bwMAAOSwpwZb1i1r&frcectupt=true

https://www.ebay.co.uk/itm/Yamaha-DT125R-DT-125-R-Stator-Plate-Magneto-Generator-coils/392299630461?epid=644688643&hash=item5b56e14f7d:g:5gYAAOSw175b9VAR

This one says the pickup is included
https://www.ebay.co.uk/itm/Generator-Magneto-Stator-Coil-For-Yamaha-DT125-DT-125-R-1999-2003-2002-2001-U3/192897169616?hash=item2ce99138d0&enc=AQADAAADAFjVrDbVsZ8oH%2F8PNHtt9VX4%2Fw7FZcmMuqsX8uaFEduVlb%2Fy1o7OXWNUQFv7nygf9YH3qjPXIas%2Ban%2BLeT152ClYtj0NopsDfdqpTzgik0U4Yg6utPCO4OwQW%2F5%2B1Zf4FXOD%2FJ7VLR0iF9iLJjHuI57WZvf7EmxOaFYUTlFptd9U8LEVL8C%2FZfx4hgJG1CYTAwTqx%2Fi2NJRKoufMeXQDie8%2BJl4jt0ErreFsM7j1ZP4KJ%2BoROCCkPU2p4Cpu0rHADuuNGcNicdEcbw3Xtv24FqCPFi4MRCyieCme3RGVglFDm%2B%2FODjuOiCI3Ys2wm9gvDPBnulHq1EkSWbk8RY2Pkfkl0DryHNzMuRR4DzqGzYFbD4HInX1w2GrWFLfefLcNVM16z%2F%2BTdlDqkB0B4WLrhG74o3F%2FrHjKlNve5GPyRsZShJ7CbT%2FChNBGa9vR0ifdz4gFyVivGj8ndD%2BAg3aOV7L6bkYPa2ehQESUODOUmU31qM%2BbBQAxKNkrM9SzMPMhN2wBhOU9iHTv7QIW84qa3iejapPubZFcIg7HqBheJjDJQf6hem20zvf4CP9zAPmXS2XuQKAvRqokOCGSfzpCEg4%2Bcj5UzgTvhizDfXQCEecrfFjxe1NfWphFcl5q7ryjfet4CS6k%2FNIss23QF7FmOhrChMZla8nEXZDEGWdtj2Z2KHqjx5RyJi2lwGtyfoaICjwxKPQzmKhRuME%2FeL7zO9IfZGYP4d%2B6kb4tl4Hj5rXgAwNW%2F4j%2B%2Fi3%2BsZQVr8V%2BvmBfO%2BXqgIU6YtCPhJQ8p7Bg6UUolaJZn%2BCY6Xf926QYla1VXMEcFEms5Lg74%2B67PwBW%2FVLtfvZknGqkxCtWeob2BfGWOm6%2BAQIagS8iIlVDl0othenYI3rLmBX6m280R9DXrC5UiA2DNt6%2BpYsfl821WJvzm1Z5aGbORtYLcjmUdgoKNvFhCjoOC7lC5Bj%2B6kAZqM8nhbSM5ArCYiSDlau7XuGvdlX9i%2BR%2F821i9BXAHPwsvTxhqc5%2FH3LPbf2nYg%3D%3D&checksum=1928971696160354e2d167584cfe82e8547d33f31c22

Used and cheap
https://www.ebay.co.uk/itm/YAMAH-DT125R-TDR125-TZR125-ignition-stator-and-rotor-3MB/352501812400?hash=item5212beccb0:g:XD0AAOSwr~tb13Db

There are loads.

i don't think you need a new one, it's incredibly reliable since there are no contact parts. Hall Effect sensors rarely wear out, it's why they're used in nuclear powerplants.

[AndyJay]

@Calum cheers... I know there are plenty of full sets including the stator generator but I was looking for just a new pick-up part due to the metal face being warn down by the tab on the flywheel when it came loose.
Once I can get the flywheel off I'll see how the current one fends - I might be able to manipulate it to still get the correct spacing for it to work.

This is what I was looking at
https://www.hpi.be/pickup.php