CBR600f electric failure!

[dextersaurus]

So my CBR died on me a while ago. turned out the battery was on fire due to the reg/rec failing and the battery overcharging.

Anyhoo, i've now replaced the battery and the reg/rec. Key in, ignition on... Neutral, oil and stand lights all came on, horn works, all lights work etc.

Went to press the starter button and.... nothing. Not even a click. It's like the button isn't connected. I tried to bump it but never got anything.

The engine cranks when i bridge the starter solenoid, but doesn't want to start. I've checked the spark and there isn't one.

The carbs were recently cleaned along with the plugs changed, and it was running perfectly before the thing died, so compression is fine, i'm just missing the bloody spark.

So - The fuses are fine, lights etc work, engine cranks when the solenoid is bridged, doesn't want to fire.

What else should i be checking? I'm guessing a replacement solenoid may sort it, but don't want to waste my money if it's something else.

Cheers

[Casper]

Look at the selenoid. You have a R/W wire (RED WHITE?) that goes back to the reg/rec. You could have burnt that out during the wee fire.

[Pete.]

No spark and no crank = duff alarm/immobiliser.
____________________
a.k.a 'Geri'

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

[mab]

can you start it with the sidestand up and the clutch in? if so, your clutch diode has gone.

Is the kill switch on run?

[dextersaurus]

Think rolf may have it.

It's not got an immobiliser, it's a '92.

And it won't start in any case, yes, i'm not that silly

[mab]

Checked your fuses? specially the 30A one, under the seat by the battery

edit: never mind. Just re-read your post

Edit 2: Have you double checked all your connectors?

[MaybeGuy]

[dextersaurus]

Checked all fuses. i'm not a tard so i did check the 30a at the solenoid.

If that's not in i get no lights anyway, so it has to be something else.

Connectors will be next on the list, but that'll involve taking the bike to bits again which i don't have the time for just now.

So i'll be checking the wire 1888 mentioned, and then also the connectors over the bike.

Oh the joys.

Any other ideas of what to check while i'm at it?


Dunc

[Casper]

Only other wires are the three yellow coming from the genny. That could have been fucked first burning out the reg/rec so check them three. Apart from the other i mentioned you have a green coming from the reg/rec but that goes to your lights (indicators) and horn but you say they work so i doubt that would be a problem.

The stator should have about 70v coming from each yellow but you cant check that until the bike is running so yeah, my money is on the R/W wire.

[dextersaurus]

Right, bike is now stripped and i'm looking through the wires. have the coils off and plugs out, and they're coming out wet, and i dont have a spark.

I've checked the wires as much as i can without a multimeter and they don't look burnt out or anything, but i'm obviously stuck without one at the moment.

Also re-checked all the fuses. The ones in the fusebox are all fine, as is the one on the solenoid.

Cleaned up the earths just in case, but no change.

What's the next step, other than checking the wires with a multimeter? (R/W wire goes from the solenoid to the reg/rec, so i'm checking continuity between those two points, right?)

Cheers

Dunc

[Casper]

Just to rule it out for sure bypass the side stand switch. You have three wires, looks like you want to cross the Green and Green/White. They go to the ignitor. It looks like you only have one diode but i cant sus what its for. Do you have the wire diagrm? You can solder two wires to a bulb to see if you have power going up a wire.

[dextersaurus]

oh, i have one of those screwdrivers with the bulb built in so i can test that.

If the ignition is on, this red/white wire is live then?

[Casper]

Hard to say. I would test at the reg/rec end. If no power try arking the two points on the selenoid.

[Pete.]

[dextersaurus]

It's an F2, but it's pretty much the same.

That red/white wire has power by the way, checked between the reg/rec and the negative of the battery and it lit up. nightmare!

I'll have a look at the starter switch/fuse.

Cheers.

[dextersaurus]

[dextersaurus]

Right. looked through this a bit.

Managed to find an F2 wiring diagram, and it's quite different.

going from the wires coming from the kill/starter switch - as everything but the coils seem to be getting power.

Black/white - goes to the ICM and coils.

Black/brown - goes to the lights, temp gauge, fuse 3, brake light switch and indicator relay

Black- goes to fuse 2, starter and kill switch.

Now all these wires are fine, everything that should have power, has power, but the only thing i'm missing now is power to the coils.

Red wire is live with ignition on, red/white wire is also live with ignition on. still no change in anything despite checking the connections.

I think there's something wrong with the ICM going from this

Anyone that can shed some light on this, it'd be a great help.

Edit: also got a connection between the black/white wire going INTO the ICM and the coils&switches.

[Casper]

What about the green from the reg/rec. It goes to front and back lights but also a junction somewhere going to the ignitor. If i was to guess i would think that was the power in. Is it live going in?

[dextersaurus]

[Casper]

My thinking is if you have power going in the ignitor and not coming out then yes its fucked. However you need to find the in first. What about the power going to the side stand switch as when thats up then it goes to the ignitor, i presume to kill the coils.

[dextersaurus]

Right.

One wire goes to the neutral switch, continuity is good.

One wire goes to the coils and switches. Continuity is good.

Two wires go to the coils. Continuity is good.

One wire goes to the tacho. continuity is good.

One wire goes to ground. continuity is good.

Two wires go to the signal pulse generator. can't check these.

The last wire goes to the clutch and side stand switched. not checked these yet, next on the list. i imagine they're fine though, as the lights on the dash work, and it's in neutral so don't see why it won't start, even if they aren't working.

New one is ordered on ebay anyway, to rule that out.

Cheers

Dunc

[Pete.]

I tried to look at that schematic but TBH it's so poor it's making me feel ill.
____________________
a.k.a 'Geri'

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

[dextersaurus]

[dextersaurus]

Hard at work

https://a7.sphotos.ak.fbcdn.net/hphotos-ak-ash3/s720x720/601096_302608733166352_2035110350_n.jpg

New ECM and solenoid have been ordered, just to rule them out. If that doesn't sort it, i'll change the switches over, and see what happens then, and if THAT doesn't sort it, i'll replace the whole loom.



Dunc

[dextersaurus]

So i've replaced the solenoid, and there has been no change.

Still no power to the coils, and nothing happens when i press the starter button.

Going insane here. someone come up with a bright idea for me to try. PLEASE!