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Don't worry, if it's mechanical its fixable.

Although rare, there are several things that can fail following a heavy impact. One thing is for sure, we will have the parts if you find whats broken and here if you need us to take a look. (y)

Just for info, we now stock all genuine Yamaha and Giant gears (y) Yamaha Motor Parts - eBike Motor Centre (Performance Line Bearings)

Yamaha, unlike most motors, do not suffer from the motor angle issue when fitting a new board. (You can't change the board on a Giant "SyncDrive", they use their own proprietary software). One thing you absolutely should not do though, is take the torque sensor apart! It is calibrated to the...

When the cranks were moving was the motor still driving the bike forward?

Depends on the motor, most just rely on the bearing and no motor is waterproof.

Right hand seal is possible and designed, just speaking with the manufacturers, nothing for the left hand side yet. Got side tracked by many other things!

No, we stated that we do not rebuild E7000, 8000 motors due to the software issues and the E6000 was not re-buildable due to the plug orientation and the way the wiring was soldered to the board. However, we may have found a way round that issue now (not that we're repaoring them, we just never...

Gen 2 stayed at 75Nm I'm afraid :( Only Gen 4 went to 85Nm

Just for the record: Shimano are repairable, we sell the bearings and parts for them. Also the Brose motors are up-gradable Brose Motor Upgrade Service - eBike Motor Centre (Performance Line Bearings) which takes away many of the issues that cause this motor to fail.

Just for info: All mid drive motors, Bosch, Brose, Yamaha, Shimano, Impulse, Panasonic, Mahle, Continental etc. etc. have two clutches (Freewheel mechanisms) Some have ratchet and pawl systems, some have sprag clutch bearings or ramp needle roller bearings. If you could get around the...

Don't worry, you'll always have us to look after you (y) A lot cheaper than £850 too! Just have your motor repaired by us, or even upgraded... then you shouldn't have to worry about warranty anyway. Click on our name to take a look: eBike Motor Centre If you're not from the UK? Just click the...

What he said! Personally, I say... buy a bike with your heart not your head. What you see on the forums does not show a true representation of the thousands of people happily riding around on all different makes of motors suffering no issues what so ever. A bike should make you smile when you...

The fault is a software error or a calibration issue, depending on which fault. It cannot currently be removed as far as I am aware. Yes, if your motor is out of warranty, the current thinking is, you will be happy to pop out and buy a new motor.

The green "Bosch long life Tacky Grease" should be used for the seal and MudStop. The MudStop should also be removed and re-greased every 3 to 4 months, depending on terrain and cleaning regimes.

All your problems are being caused by the plastic bit around the front of your sprocket, did you remove it? The sprocket you need is a "Boost" sprocket, this will have the return on it. BBB Boost sprocket "Boost" sprockets help spread the sprocket load on the carrier or 'boss' and stop the...

I posted the PDF instructions in this thread 6 posts up from your original question on page 3.

No annual servicing is required. Just the seals from time to time. These motors are not really something you want to keep taking apart and putting back together again. They are the epitome of "if it aint broke don't fix it". But if anything starts to go wrong, feel wrong, sound wrong, STOP! Get...

No, you can do a seal clean and re-grease :)

Stops you ripping your trousers on the sprocket :p No, it makes no difference to your motor if mud packs down the front of the sprocket because it can't get into your motor from there.