Motor cutting out after a few seconds

[crE]

Thanks Trex. What kind of grease would you recommend?

 

[crE]

Just checked. It creaks when applying pressure to both pedals

 

[trex]

any grease will do. I usually have a small tube 40g Lithium grease that is enough for about 3 years.
http://www.ebay.co.uk/itm/Weldtite-Lithium-Bike-GREASE-40g-New-Bike-Cycle-Chain-Crank-Chainwheel-Cycle-/350782448248

You will want to refit one crank at a time to eliminate it from the possible causes.

 

[crE]

I assume the crank removal tool works exactly the same on the right as it does on the left?

 

[trex]

yes, use the same puller with both cranks. You have to be careful with the crank puller. The extractor is made of hardened steel, the crank of aluminium which is not as hard (2.5) as steel (8), so the steel thread can easily damange the aluminium thread. I always put a bit of grease on the crank puller's thread before screwing it into the alu crank by hand - for at least 6-7 turns to be absolutely sure that the puller is straight to the BB spindle and not cross-thread.

 

[john h]

crE arcing is what you get when a bare wire that has power in it jumps to bare metal causing a spark , just like a spark plug seemed to be as you pressed on the pedal it was like a clicking noise, the other vids where creaking noises

 

[crE]

Hi John.

I can confirm it isn't arcing. The battery has been removed from the bike and the noise remains

 

[john h]

crE id love to know my self now what is the cause, i have two whoosh bikes a cd and a sport and have never had any problems , just like your self i leave the car and use the bike, im one of those people that would have to strip it right down just to find the problem by now, hope you get it fixed quickley .

 

[crE]

I am the same in the respect that I want thr problem fixed! But I am not so handy with bikes (I'm learning), but give me a laptop and I will strip it down and diagnose it!

 

[trex]

positive spirit, crE. Give me a modern tablet and I don't know how to use it leave alone strip it down and fix it. With bikes, I found that I have to do each thing three or four times before getting the hang of it. Then there is the satisfaction that I am in control and I won't need to wait for and pay someone else to do that for me ever again.

 

[crE]

Right. I got that exact grease and greased it up well and good! The creak.. more like a crack now... is as bad as ever.

Somehow I don't think it's coming from the crank. Here's anothernothernother video

https://docs.google.com/file/d/0BztB4N7mO2y9ZHJnWmdycFpCT0E/edit?usp=docslist_api (sorry, 100mb)

Really have no idea what's going on.

I might just take it into the bike shop for some advice.

Bike is still off the road

 

[trex]

You have ruled out the cranks and I am out of suggestion. There is a sprag clutch inside the motor, the clutch has a leaf spring that could make this kind of noise.

If it does not slip, then the clutch is working. To be honest, I never heard that clicking noise before when I tried the CD bikes but then I did not try to test the cranks. May be it's time to ask Woosh to deal with it.

 

[crE]

I've just emailed andy. Thanks for all your help guys.

 

[crE]

This creak is happening without the battery even in the bike. Forgot to mention that

 

[manman94]

hello just upgraded my bafang motor to 750 watt with this controller ,when i pedal the motor it will turn and then stop rotating although the sensor on pedal assit is blinking red .
the pedal assist will not work continous it just stops after one rotation i cant work this out i have changed phase wires around ive checked all connecors,brakes are not connected and no errors on the display it will not continue turning no matter how much i turn the pedals only when it slows will it allow the pedal assist to kick in again.

 

[saneagle]

hello just upgraded my bafang motor to 750 watt with this controller ,when i pedal the motor it will turn and then stop rotating although the sensor on pedal assit is blinking red .
the pedal assist will not work continous it just stops after one rotation i cant work this out i have changed phase wires around ive checked all connecors,brakes are not connected and no errors on the display it will not continue turning no matter how much i turn the pedals only when it slows will it allow the pedal assist to kick in again.

Which pedal sensor do you have? If it's a 12 magnet disc type, some controllers can't handle the higher frequency pulsing, so either try a different pedal sensor or remove every other magnet to convert it to a 6 magnet one.

 

[manman94]

Aha thank you I will try that then

 

[manman94]

Hi yes tried with 6 magnets still the same one rotation the motor turns and then won't engage again even though sensor is blinking

 

[saneagle]

Hi yes tried with 6 magnets still the same one rotation the motor turns and then won't engage again even though sensor is blinking

Might be a speed sensor fault then. If your old motor had one magnet and your new one has 6. What does the LCD show for speed?

 

[manman94]

Hi it shows no speed because it turns the motor on for a few seconds and then cuts out until it slows down and with another rotation it will start up again.