wiring diagram for 3 wire tacho By beakeyozz (Read 7,720 times)

[beakeyozz]

hi all l need a wiring diagram showing a 3 wire tacho as my tacho is all over the place and l would like to trace the wires it seems to be picking up more than one spark at idle its at 6000rpm but the motors just idleing my scoot is a baroni meiduo 150 its made by taizhou city kaitong motorcycles there are several types yiben outlaw and geely and ozooma scooter mainly the same but l carnt find a electric diagram with a 3 wire tacho so l though l would try here thx in advance for any help

[JR]

On this scooter we would have a generic diagram that would work fine but here's the problem of all the diagrams I've ever seen and we have which is many non of them have the tach wiring part on the diagrams> No it sounds silly as I have two scooters with a tach and the diagram I have which is accurate has no mention of the tachometer.

My suggestion is to trace the e wires out and I'm betting one goes to a power source 12Vdc, the other to a ground and the other to the CDI. I'm fixing to take the front off of my scooter with the tach and I'll trace those wires out and see where they go, been meaning to do this anyway.



JR

[tvnacman]

JR, I changed my speedometer, with one that has a tachometer. One wire to switched power the other go to the coil.

John

[alleyoop]

John,
Were on the coil? the coils usually have TWO connectors?
Alleyoop

[beakeyozz]

this is what l have found out from the net the green wire is ground the black wire is 12 v postive so this turns on with the key and the black with a red stripe goes to the cdi puse trigger well most chinese wireing have differnt wireing colours and some say wrap the black wire with the red stripe around the spaerk plug high tension lead what do other s think l gotta figure this out n l keep trying n let you know my results thx all

[beakeyozz]

heres a wireing diagram that l found the only one with a tacho in it do you think it looks right

Attachments:

[JR]

That is right on! Can you give me a link to that diagram? I'll clean it up and put it in the wiring tech section!



JR

[beakeyozz]

heres the link for the wireing diagram 49ccchinesescooterproblems.blogspot.com.au/2010/11/scooter-wiring-diagram.html l hope it works thxx again for your help lm told a wire goes to the negtive side of the coil but dont realy know if thats correct

[beakeyozz]

l do a little more reasearch and start on scoot in the morning will let everyone know how l go

[JR]

Thanks a million! We await your results.

JR

[tvnacman]

Switched power from the ignition switch then spliced the green to the green on the coil and the other wire to tje other side of the coil (don't remember the color) . Not the pulse coil .

John

[beakeyozz]

here what l found afther pulling off all da plastics green wire that splices into lots more green wires .... a black wire that splices into more black wires .....a black with a yellow stripe on it which runs to the cdi and that black wire with a yellow stripe runs to one side of the coil and a green wire to the other side if the coil maybe its the afthermarket cdi makeing the tacho read lots more than it is at idle cgi.ebay.com.au/ws/eBayISAPI.dll?VISuperSize&item=290705695369 thats the cdi thats fitted tacho is still reading false

[beakeyozz]

try n take a pic of the cdi n post it

[alleyoop]

the link does not work? I would think hooking it up to the CDI TRIGGER wire would register the RPMS. But on the Diagram it shows it it hooked up to the COIL FEED.

What rpms does it read at IDLE?

Alleyoop

[beakeyozz]

7000 rpms