If none of the magnets broke do you think you can find out what kind of glue Yami uses and repair and reuse the broken one?

 

Looking into Glue which could be used, problem is the temperature (as the starter motor is located next to the Head) and removing the old glue without braking the magnets.

Hoping to hear from more riders, as i am trying to found out how many have failed so far, As Yamaha have stated that there is NOT a problem with the starter motor magnets failing due to glue (bonding).

 

Hello
I'm sorry to bring you bad news but this failure is well known by yamaha and affects all R1 from 04 to 08 and some FZ1 models too it's major design flaw and sooner or later all will fail leaving you with peaces of magnets all over your engine.
Yamaha have a new redesign rotor assy to prevent this...
Just search the forums or google for R1 stator failure and you'll see what I mean.

 

I think you're referring to the generator rotor, not the starter motor...

Sent from my XT1254 using Tapatalk

 

I've never seen that on the starter. Mine died a while back due to unnecessary strain (but that's another story). They're not cheap unfortunately, so good luck with a potential repair! Any chance to find a rebuilt one on eBay?

Sent from my XT1254 using Tapatalk

 

There are plenty on ebay at present, but your paying anything from £50 to £200 on a second starter motor which will fail the same way.
Looking at the design, if that's what you can call it. many more will start to fail. Looking back at the last time i started the bike, it sounded like the battery was low on charge. but it started. Then the next time i tried to start the bike, all that happen was complete short of the electrical system when the starter button is pressed. Bump start required.

 

You're talking British Pounds, right? It looks like Yamaha has redesigned the starter motor, and brand new is going for $328 (£265 for you). Though I have no idea on additional fees related to your country...
https://partshark.vnexttech.com/oemparts/a/yam/50046007f8700209bc794ffb/starting-motor

 

Thanks for the information, looks like rip-off Britain strikes again. Wonder what the re-design is... different glue (bonding)..