Giant energypak 500 battery self diagnostic test

soundwave

Esteemed Pedelecer
May 23, 2015
16,093
6,311
there are no parts for giant Yamaha motors only bearings if they are the same size as standard Yamaha motors.


you could try them and see if you have any other options but i doubt it bar a new motor.

a new motor wont be cheap either if you can find one.
 

Clive Norwell

Finding my (electric) wheels
Sep 16, 2017
20
2
57
Tiverton
Thanks mate, maybe I'll email Yamaha when I'm back off holiday with the serial number and see if they can offer any help.
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
20,091
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West Sx RH
Sureky the obvious is a Yamaha dealer with diagnostics ?
 

soundwave

Esteemed Pedelecer
May 23, 2015
16,093
6,311
Sureky the obvious is a Yamaha dealer with diagnostics ?
no he needs a giant dealer as they use can bus programming as make there own batts bms controllers and displays.

even if that Yamaha controller fits it wont work becose it uses uart programming :rolleyes:
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
20,091
8,212
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West Sx RH
Good point SW , forgot about the Giant connection.
Best put in the garden to use as a trellis and buy a nice generic hub bike, much better for spares and reliability.
One day all bikes will be hub again as the dodgy mid drive closed system bikes will have had their day :p.
 

soundwave

Esteemed Pedelecer
May 23, 2015
16,093
6,311
the yamaha motors were made to be serviced as why peter can get all the parts for them, giant took that motor and made it unfixable as wont sell the parts.

and there all the same as wont even sell bearings as all have to get custom made and 1000 min order.