Something's not quite right with my e in ebike (part 2)

Huge push last weekend ... was it time to open up the motor unit ... not yet, but was getting close..

Lots more forum reading ... lots more ... lunacycles have a great knowledge base and forum over at electricbike.com (direct to bbs02 knowledge base).

Spent a couple hrs riding up and down street :) Clearly I'm a bike novice, not used to hearing and correlating issue sound.

Plenty of trial runs with changing gears, changing PAS levels... Managed to get into a consistent mode where I could always make the 'jumping' happen. The gear selection needed to be in the highest gear (8) and a reasonably high PAS level 8/9.

Leaving in gear 7 resulted in plenty of clean runs, but moving into 8 the problem came back.

Tried to make some video's, but I couldn't hold it still enough to see what was happening, just hear..

So what was the issue...

Main fix was aligning derailer gears! Clearly with motor it's more important for them to be perfect. With all the quick release of rear wheel it gear alignment moved enough to cause problem. So gears we're still changing after the auto gear selector had dropped the power and reengage, thus causing chain skip, which I'd not experienced before, this thinking motor skip.

This time, I spent a fair amount of time aligning the gears and also aligning the deraileur hanger - quick view it didn't look out, but it was slightly, so bend it back to true manually. These tutorials from Park Tool and RJ the Bike Guy are very helpful, and with my hanger only slightly out - manual bending with some grips, although tough, worked out enough for me.

Then spending the time aligning all the gears - more helpful park tool videos -  

 

Definitely recommend, going back and forth on the setting multiple time to turn them as best as possible since clearly with the motor it's even more sensitive.

With that complete, definitely the shifting was amazingly cleaner, could feel the gear selector working well and it was back to be a dream ride ... although 8th gear still caused a couple of chain slips during the couple miles of testing.

Lubed all the chain and gear set up, and yippee - all smooth now.

Amazing for me - was a great learning experience - gear alignment is important and recognition of audio chain jumping :) soooo pleased not to have to crack open the motor casing.

Funny thing also happened with support... I'd finally got desperate enough late Friday to raised a support ticket request with lunacycle.com. Support excellent as usual, Scott from Lunacycle got back to me on Saturday with a request to check my derailleur alignment lol - what a star - typical.

All is still not perfect with the throttle as it cuts periodically, usually at speed, so am thinking maybe it's just tripping a limit as once I disengage the throttle and re-engage, all works again ...

I don't throttle much, so will loot at that one another day.