Separate names with a comma.
Pretty normal with that sprocket retainer. Check that it hasn't worn. Best to replace the retainer with every sprocket change.
I don't know if this has been mentioned before but if the pick up wires are reversed you will get very similar symptoms. Some replacement pick ups...
Check for continuity of the white wire between the LH switch (pin G) and the headlight connector. If that is ok check continuity between the...
The desulphate cycle puts high voltage pulses through the battery. If the lithium battery wasn't knackered before it definitely will be now.
I suspect that it contains a driver for the LEDs so not just resistors. Two other possibles; this from the US -...
If this is the part you are after they seem to be available - but hellish expensive....
