help with wiring: no power anywhere?

[jordey]

okay i just spent ages wiring up my tzr 125 as the bike came in parts, but theres no power to anything. speedo doesnt light up, no brake light, and the starter motor doesnt go. i charged the battery and even tried a different battery and different fuse but neither seemed to work. i must have wired something wrong, how do i find out what?

[Aff]

Get your multimeter out and start poking.
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Current Bikes:Honda 929RR Fireblade, Honda CD200 Benly (Project), Stomp Z2 140
Electric Bike Project

[Islander]

Check your earths as well.

[jordey]

[jordey]

[Efes123]

As you have no power, it should be relatively simple to find. Just follow your main live feeds between the ignition and the battery (and the main earth from the battery). And get a proper multimeter, they're only a fiver
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Honda Goldwing GL 1000 Current love
Honda VT500 ED - SOLD
Projects Suzuki GS125 Done, then stolen - Kawasaki GPX750R SOLD - Honda VF750S SOLD

[Pete.]

If you haven't got a multimeter you can do a lot with just a bulb and two bits of wire.
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[unitynotsocri...]

as other posters,just remember youre lucky as it appears to be a singular wire fault.

check all the connector blocks and electrical pins inside for cleanliness and tightness.

if its a fault from the generator earth you could link a wire from the engin/alternator case to the earth,but do all the simple stuff first..............fuse,charged battery etc.

if you dont have a meter then use a small bulb with two wires on it to test for 'continuity'.....e.g.put one wire on the engine/frame/battery earth and prod around with the other wire seeing if power is getting to the clocks/lights etc...... make sure you test with ignition switched on...........i'd take a poke and say that your engines not earthed to the frame/battery.

good luck...
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nearly a normal tax paying tosser.......with ferrileness suzi100,cg125,cb125scb100n,cb175,cd100,cj250t,kh250,c15,125 bantam,super 6,rickman gs750,xt500,250rs,dt175,lifan125,dolomite1850,metro,Morris220ld,morrisfg,leyland princess,range rover,corsa,vw camper .now struggling with legs. MORE ORDER = MORE CHAOS

[jordey]

[Pete.]

[jordey]

[Islander]

Switch the ignition on and measure the voltage at the live terminal (the one you just measured) and then the output (switched live) terminal. They should be the same. If there's nothing there then it might be the switch. You can verify that by doing a continuity (resistance) check between the live and switched terminals while operating the switch.

[jordey]

[Pete.]

If you're getting power at the brown wire to the horn, then the bike is powered up and the switch is working, for power anyway.

Press the horn, does it go peep peep?
____________________
a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[jordey]

[Turkish]

Sounds like you have the probes connected ass about face.

Connect the black lead to the negative terminal (or ground). The red lead will be your 'probing' wire.

With the probing wire, put it on the positive terminal - you should get battery voltage. Then check ignition switch, main relay (if present) and so on.

One side of the horn will be short to earth (Ohm function on meter), the other side should get battery voltage with the switch depressed - but then you would also hear it....

It sounds like the ignition isn't being switched on, hence nothing works, so trace this circuit. You'll be looking for a pair of wires (usually) being shorted in the on position.

Got a wiring diagram so I can be more specific?
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ZX-6R G2
CBR125R RW6

[jordey]

[jordey]

[jordey]

https://i39.tinypic.com/4iiltt.jpg
https://i43.tinypic.com/8why10.jpg

[jordey]

okay so i've been poking about but still don't know what/ where the fault is.

the wire from the fuse box splits, one way goes to the ignition coil, the other then splits again, going to the rectifier one way, the rear lights, and then the ignition/ front electrics.

theres voltage (the same as the battery) both at the rectifier and the loom connection for the ignition. nowhere else seems to have voltage, apart from a few random wires with 0.1-0.4v.

the ignition barrel is f*cked and can be unlocked by anything (random keys, screwdriver) so im thinking this could be the problem

[Aff]

You been doing continuity tests on all these wires without voltage?
____________________
Current Bikes:Honda 929RR Fireblade, Honda CD200 Benly (Project), Stomp Z2 140
Electric Bike Project

[Turkish]

Do you have 12v on the red wire going to the ignition switch?
____________________
ZX-6R G2
CBR125R RW6

[jordey]

[jordey]

[Aff]