Hello cyclamatic problem any advice be good !

[marknunnery]

Hi i am a newbie so hello all , i have a cyclamatic which has developed a fault, the lights come on on the grip and the batterie is ok i have tested with a volt meter it was giveing me 29 so thats good , so i dont know where to start? the moter does not kick in at all it feels like it is trying and now and again it kind of fires briefly, like 5 seconds on the stand with the back wheel of the ground and sounds a bit ruffer than usual, and then nothing?
i have tried wiggling wires and the servo brake cuttof to no avail , i have cleanned contacts and taken apart everything down to the controller it all looks fine no burned bits at all and no dodgy wires its all very clean and connected looking?the leds are bright and they show no drain when the throttle is turned, there is just no power getting to the moter in a nutshell. could it be a new controller is needed? or a new moter? it was fine and then all of a sudden nada! i have had it for about 3 years , how does one fault diagnose for the power issue , do i start at the throttle? the pedal assist does not kick in ether its got to be a connection somewhere or is it a new part? i also took out the key barral as that was playing up a bit but the wires are solderd on there ok at the back of the barral thanks in advance mark.

 

[Deleted member 4366]

Have a look to see if you have a connector behind the chain-stay. If so, push it together:

 

[marknunnery]

Hi thankyou for the reply, well i have had a look at that i have taken of the rubber housing and it all looks fine and new and connected up ok? can i test from there do you think ? ..what would the outputs from the wires be? how would i multimetrer test from there to find out if thats where the break in the power is , it kind of clicks very faintly when i twist the throttle and then nothing?
batterie is fine and charged so am flumoxed! may it be something in the moter??i hope i dont have to undergo surgery as i dont really know what i am looking for in there, and all the wireing looks ok so far hope you can point me in the right direction kind regards mark

 

[Deleted member 4366]

Don't give it full throttle until you've got it runninf properly. You can blow the controller like that. You can't test anything at that connector. You need to test at the controller end. If your motor clicks, one of the hall or phase connections to the motor is faulty, or you've already blown a FET in the controller. Most likely is the former.

The first thing to check is the wire where it comes out of the motor. Is there any sign of damage to it?

The next thing is the connector behind the chain-stay. Make sure it's fully in.

Next, you have to open the compartment under the battery and pull the controller out. Unclip the three thick motor phase wires (blue, yellow, green), crimp the barrels a bit tighter, then reconnect them. Check that everything in the hall connector is OK.

If that doesn't solve it, you need one of these to find out what's wrong:

http://www.ebay.co.uk/itm/1PC-24V-36V-48V-60V-Car-Scooter-Brushless-Electro-E-bike-Motor-Controller-Tester-/181246430524?pt=UK_Motorcycle_Parts&hash=item2a33210d3c

 

[marknunnery]

hi thanks for that guide really useful knowledge and i will be getting one of those checker things as well, i have checked all that , i have discovered that if i role the back wheel backwards a little bit, with the bike on the side stand with the wheel off the ground the motor kicks in but i have to role the wheel back with the throttle on? other than that it does not work some kind of resistance thing going on , has something blown in the motor? it kicks up to all speeds ok but it does sound noisier than usual have yet to try and get it to work on the road , also the pedal assist works as well as it should when the motor is engaged but i have to kind of role the wheel backwards a bit and kick the throttle??

 

[marknunnery]

there is a definet clicking when the motor kicks in it sounds like cogs going crunch crunch could it be a b;own phase thingy or hall thing? as i say all the wireing looks good and it is getting power through the system but in a strange way ..with thanks mark

 

[Deleted member 4366]

The motor has a free-wheel, so you can't turn it forward. You can turn the wheel forward, but the motor will stay still. With everything switched off, you should be able to feel a bit of resistance from the motor because you'll be turning it five times the speed of the wheel because of the internal gearing. If it's hard to turn backwards, there's a problem with the controller or wires. Can you confirm whether it's hard to turn backwards?

 

[marknunnery]

hi well the wheel turns backwards ok the pedals go with it as well it feels the same as when it turns forward so no change there

 

[Deleted member 4366]

The cause is still most likely a connector somewhere between the motor and the controller. Did you check the ones in the controller compartment?

 

[marknunnery]

ok gonna get it all out again thankyou so much for your guidence you are a star sir !!! its very frustrating this business as well as interesting but it is a life line for me for getting from a to b again thankyou! i will keep you informed and this is a valuable lesson in stripping down the teck i believe! x

 

[Deleted member 4366]

If you can't find anything there, the Ebike tester should point to the problem. Let us know when it arrives for an explanation of how to use it.

 

[marknunnery]

will do and thankyou again

 

[marknunnery]

hi my e bike tester has arrived , i could do with the explanation as to how to use it, as the instructions are ermm a tad hard to decipher! with thanks ...

 

[Deleted member 4366]

Instruction here about 2/3 down the page:
http://endless-sphere.com/forums/viewtopic.php?f=31&t=20413&hilit=ebike+tester+instruction

 

[pdarnett]

A bit clearer instructions here as well http://www24.brinkster.com/lyen/product/tester/ I got mine this week, thought I'd better have one.

 

[marknunnery]

thanks guys! gonna get busy with it!

 

[marknunnery]

Hi i have tested my cyclamatic doing the first test following the above guide i have found that when i pedal the wheel backwards only two of the lights blink .
a(yellow) and B(green)
C(blue) does not light up.
when i pedal the bike forwards nothing lights up?
This is using the controller tester with the power of on the batterie.
any idears i was thinking as it sais coil on the tester that maybee a wire has disconnected inside the moter connecting the coil thingy?
with thanks

 

[marknunnery]

this was doing the motor coil test

 

[marknunnery]

i have also done the moter hall signal wire test and this worked i.e the leds lit up in sequence when i span the moter backwards. nothing happend when i moved it in a forwards direction?

 

[Deleted member 4366]

Spinning the wheel forward is a waste of time because it doesn't turn the motor.

The blue phase wire not lighting up is a problem. It means that there is an interruption between that connector and the motor winding. The only question is where?
The windings themselves are OK, otherwise you'd lose two phases, so the most likely culprit is the connector behind the chain-stay if you have one, so check that again. Make sure it's in right up to the guide line. If it's not that, then the wire is probably broken or cut where it comes out of the motor, which means you have to disassemble the motor to pull the wires through, then lots of soldering and wiring.