Triumph TT600 - Misfiring - we have a diagnosis!

[dextersaurus]

So, just in time for the BCF BBQ, the bike has decided to be an absolute bastard.

Went out for a run today, noticed it struggled to start but put it down to not been run in the past few days.

Took it to the triumph garage to get the fuel mapping sorted out, and noticed on the way there the idle speed was just below 1k RPM...

Then the fuse for the headlight blew.

Then the fuse for the indicators blew.

Then i noticed a burning smell.

Perfect, it's happening again.

They plugged it in, nothing. wouldn't pick up anything from the ECM. The guy told me 'there's a wiring fault, you'll have to sort it out, we can't do anything.'

Problem is the generator/stator coil putting too much into the reg/rec and it's melted the wiring loom. again.

So to fix this, am i correct in thinking i need to buy a new stator coil, new loom, and new reg/rec?

That'll come to just under £200 for the lot, so if i'm right, i'll get buying.

Dunc

[MarJay]

My Speed Four had a fault in the wiring loom. Apparently there is a front loom and a rear loom. My fault was with the front loom, and so I bought one from a breakers and had it fitted by Triumph.

So, you only really need to buy half a wiring loom rather than a whole one, unless of course the entire thing is melted.
____________________
British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.

[dextersaurus]

It's the rear part, the bit that runs behind the engine to the injectors.

Nightmare.

Can get a whole loom, with alarm, for £40.

Edit: forgot to mention, it's not a standard reg/rec in the bike. not sure what it's from, but it's higher rated anyway. non-standard wiring from my alarm too, and you can see where there's been the wires from the alternator cut before to join up the new reg/rec.


Dunc

[MarJay]

[ThoughtContro...]

Dunc, the stator is only a series of windings of some copper wire wound round a soft iron former to increase inductance. If it's the right one for the bike, and it's been wound correctly out the factory then how can it be putting out too many volts for the Reg/Rec? The Reg/Rec is designed to dump any excess voltage the Alternator windings produce, that's a part of it's job of regulation. Failures in the stator are going to be either dead windings or a physical breakdown in the enamel covering causing the windings to become ineffective. Both of these would usually result in reduction of alternator voltage, not an increase.

Either the Triumph Reg/Recs are utter shit or their wiring is made by Italians causing the Reg/Rec to short out and burn up. I hope you just replaced those fuses that blew and not shorted them out (?), as that is the worst thing you can do.

Check the resistance of each of your stator windings to see if they're in spec, and the output of the same. Unless there is some mad measured output voltage that's way out of spec, I'd suspect the wiring loom and the Reg/Rec were the primary culprits. The stator is probably fine unless you've been giving it too much Irn Bru

Just a guess.You have got their Service Manual or Haynes for the bike?
____________________
Prize cunt
--
"In a world of universal deceit telling the truth is a revolutionary act" - George Orwell

[ThoughtContro...]

[dextersaurus]

I see... i'm just going by what i've been told.

The bike has been dropped on both sides, judging by the state of the covers, and is leaking oil from the left side cover, so i'm guessing someone's had that off to get to the stator and not bothered with a gasket.

I don't have the time or tools right now to get in and test the resistance on the stator, i'd rather spend the money on a new one now and not worry about it...

It had this problem with the last owner, who, instead of replacing, had it repaired with an upgraded reg/rec. wires melted due to the problem.

Would you recommend, since i have the money, to just buy the new parts and see if that fixes it? if not, i can sell the old parts anyway.

Of course i replaced the fuses

Couldn't remember fuse the indicators took, so put a 10 in, that blew... put a 15 in, that blew, then put a 20 in, and that blew too. so i've left it with no fuse so no indicators, and no headlight.

Not going to use the bike again till this is fixed.

Dunc

[dextersaurus]

i'll get some pictures for you. Gimme a half hour.

Dunc

[ThoughtContro...]

[dextersaurus]

Right. stripped the rear end to get to it, so piccies.

Reg/rec
https://i624.photobucket.com/albums/tt325/duncdmc/DSCF0985.jpg?t=1305733580

Wiring from the reg/rec
https://i624.photobucket.com/albums/tt325/duncdmc/DSCF0986.jpg?t=1305733581

Wiring that leads to the bit that was cut
https://i624.photobucket.com/albums/tt325/duncdmc/DSCF0987.jpg?t=1305733720
https://i624.photobucket.com/albums/tt325/duncdmc/DSCF0988.jpg?t=1305733726

Alarm wiring
https://i624.photobucket.com/albums/tt325/duncdmc/DSCF0989.jpg?t=1305733726

WTF is this for?
https://i624.photobucket.com/albums/tt325/duncdmc/DSCF0990.jpg?t=1305733728

numbering on the reg/rec
https://i624.photobucket.com/albums/tt325/duncdmc/DSCF0991.jpg?t=1305733780

Hope that clears it up a bit.

Dunc

[N cee thirty]

[dextersaurus]

some job, isn't it.

[ThoughtContro...]

[dextersaurus]

Last owner said he took it to a GARAGE to get someone to do it.

If i saw that, i'd be telling them to either fix it, or pay for a replacement loom.

Looks like i'll be buying a new loom anyway.

But as in the pictures, anyone able to tell me what that connector is for, and why it's not connected to anything, and also where those yellow wires go?

Cheers

Dunc

[MarJay]

[dextersaurus]

TC, i have no idea, never saw it till you mentioned it there.

I don't have a meter at the moment, but i'll be getting one soon enough. get paid on friday so i'll be buying stuff then.

Got a link for that service manual?

Cheers

dunc

Marjay, it might just be some kind of emissions thing for other countries then.

[ThoughtContro...]

[MattJ]

Get a CG

HTH

[dextersaurus]

[ThoughtContro...]

[ThoughtContro...]

[dextersaurus]

New wiring loom is in the post, with the alarm.

Think i'll pull the flywheel and stator coil so it's ready to just go straight in when i get the new one, and i'll get the wiring tidied up for then.

Hopefully fixes my problems

Dunc

[ThoughtContro...]

When you get the new loom in, I'd test it all thoroughly with a meter before going out on any long rides.

Cant find any datasheet on FH008EC Regulator. It looks like FH008EB were fitted to later CBR600 and CBR1000RR and are rated at 35A. Maybe EC is a later revision? Current Shindengen production unit is FH012, rated at 50A.

Should be up to the job I'd have thought, if it isn't fried.
____________________
Prize cunt
--
"In a world of universal deceit telling the truth is a revolutionary act" - George Orwell

[dextersaurus]

Might just keep this reg/rec then. i'll be sorting out that bloody wiring though.

So, change stator coil, sort wiring out, wire up reg/rec to new loom PROPERLY.

Dunc

[ThoughtContro...]