Question relates to the Yamaha PW Series SE unit fitted to my 2020 model Batavus Harlem E-go. Bike was bought new 13 months ago and has 1440 miles on the clock.
Some time (4-5 months/400 miles?) ago, I started noticing a very audible "click"-type sound from time to time, which seemed to come from the motor area. It's happening most of the time now, and it occurs once per rev of the pedals, irrespective of what gear I'm in. And it's really irritating!
I've finally found that I can to all intents and purposes stop the "click" by changing my normal way of pedalling. If I make a conscious effort to keep both feet pushing forwards (i.e. in the direction of rotation) during the whole 360° of rotation, the noise is absent! It doesn't seem to be getting any louder, and the frequency is still always once per rev of the pedals. I've checked that both pedal cranks are tight and I'm now at a loss to see what else I can do.
Am I right to guess that it's connected with the way in which the power unit senses rider input, which in turn might explain the very slight but noticeable degree or so of apparent slack between crank and shaft, even though the bolt securing them is really tight?
And finally, is this anything to lose sleep over?
Some time (4-5 months/400 miles?) ago, I started noticing a very audible "click"-type sound from time to time, which seemed to come from the motor area. It's happening most of the time now, and it occurs once per rev of the pedals, irrespective of what gear I'm in. And it's really irritating!
I've finally found that I can to all intents and purposes stop the "click" by changing my normal way of pedalling. If I make a conscious effort to keep both feet pushing forwards (i.e. in the direction of rotation) during the whole 360° of rotation, the noise is absent! It doesn't seem to be getting any louder, and the frequency is still always once per rev of the pedals. I've checked that both pedal cranks are tight and I'm now at a loss to see what else I can do.
Am I right to guess that it's connected with the way in which the power unit senses rider input, which in turn might explain the very slight but noticeable degree or so of apparent slack between crank and shaft, even though the bolt securing them is really tight?
And finally, is this anything to lose sleep over?
