05 R6 Not Starting ?

[aletank]

My 05 R6 won't start, the only thing I've done was change the blue LED sidelights before the MOT,I've since put them back in.
When I turn the key the fuel pump doesn't start but the engine turns over, there are no fault lights on the dash except the Temp reading always says Hi.
I've had a Motorcycle Auto Elec work on it for about 3 hours but got no where. He bypassed the ECU and the fuel pump starts so thats OK,he tested the Tilt Switch which was OK.
My alarn is a Meta357T V2 which the Auto Elec says is OK, the bike will turn over but if left for 30 secs the Immobiliser beeps and kicks in so the bike won't turn over then which leads me to thinkin thats OK.
The bike was runnin great, I left it in the garage for 5 days on the Optimiser,changed the sidelights before the MOT and it wouldn't start!
Any Thoughts greatly appreciated as i really don't know what to do, Yamaha main dealer want £60 a hour and said they will just use a process of illimination same as the Auto Elec and wouldn't put a time scale/price on Diagnostic
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2004 05 Plate Yamaha R6, Mistral Black - SOLD
2009 Triumph Street Triple 675 R, Matt Graphite - SOLD

[Timmeh]

This is a classic example why you shouldn't mess with something that's working.

I assume your man has checked for obvious things like battery, bad earth, faulty relays, fuses etc.

If bypassing the ECU makes the bike work, then there's your answer. I'd beg/borrow/steal another one and put it in your bike to see what's going on.

If it isn't the ECU, then you're going to have to take the bike apart, strip the loom and inspect the main wiring harness for breaks/short circuits.

Good luck.
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GSXR400 x2 | '94 RVF400 | '93 TZR125 4DL (again)
20:22:30 BLUEX5: i would love to be forced to undergo a**l plugging with different sizes
20:48:18 Temeluchus: comp you hunk of smouldering homos3x you

[aletank]

I know the auto elec checked the fuses but after speaking to a bike shop they think it's a good chance it's the Multi-Function Relay, I may try one of them and sell on ebay if it's not.
AS for the ECU, I can't try one of them as the keys have to match as they have a chip inside that pairs up with the ECU.
If it is the Multi Function Relay or even the ECU why isn't there any fault light/code showin on the dash ?
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2004 05 Plate Yamaha R6, Mistral Black - SOLD
2009 Triumph Street Triple 675 R, Matt Graphite - SOLD

[StealthDJ]

Couple of questions, obvious (and insulting) one first:

1. You've made sure it's not the killswitch, right?
2. Has anyone had a go at the ignition switch recently, or is the keyflap stuck on it? Tried jiggling the key to see if the fuel pump activates?

Neither of those will directly solve the issue, but they might help point to where it is...
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Current garage: VFR800 FI-W | RD500LC YPVS | SV650 K2 | MZ TS250/1 | MZ ETZ251 | BSA WDB40
Previous notables: H100 S2 | CB250NA/B | CB250T | GT250X7 | Z650 B1 | SR650
Still owned, but long gone: RD250LC | CB750F2 SOHC | C50

[aletank]

[StealthDJ]

Um, more stupid/not so stupid questions, then:

The fuel pump often has its own dedicated fuse. Have you checked that?

Are you getting a spark?

After that, it's a case of a Haynes manual wiring diagram and a multimeter to see what is/isn't working. It's a slow time consuming process, but a lot cheaper than taking it to a dealer
____________________
Current garage: VFR800 FI-W | RD500LC YPVS | SV650 K2 | MZ TS250/1 | MZ ETZ251 | BSA WDB40
Previous notables: H100 S2 | CB250NA/B | CB250T | GT250X7 | Z650 B1 | SR650
Still owned, but long gone: RD250LC | CB750F2 SOHC | C50

[aletank]

[ZaphodBeeble]

Try your master key. Could be a fault with the key you are using.

The Meta 357 V2 has it's own immobiliser which may or may not be wired up as your bike has it's own immobiliser. A Meta System installer can plug a test box into the harness of the alarm and test the circuits in a matter of minutes so you could get that done for a minimal cost to just eliminate the alarm.

A Yamaha dealer can (I'm quite sure) plug in their diagnostic equipment and 'tell' the ECU to switch on the fuel pump. They would also be able to read any stored error codes. Again this would take a matter of minutes and shouldn't cost too much.

Good luck.
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Current bike: VTR1000F Firestorm. Previous: Firestorm (written off) - XJ600 Divvy - NSR125 - DT125 and a load of offroaders.

[aletank]

Thanks for the reply, I've tried all 3 of my keys including the red one.
The Auto Elec I had out said he tested the Meta system and said all is fine with that.
The Auto Elec also bypassed the ECU and the fuel pump started so I know the fuel pump is working.
Wigan Yamaha have told me that my bike doesn't have a Diagnosis socket so it would be a process of elimination and wouldn't put a price/time scale on that. However now that I'm gettin no flashing Immobiliser Indicator Light maybe they could concentrate on that.
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2004 05 Plate Yamaha R6, Mistral Black - SOLD
2009 Triumph Street Triple 675 R, Matt Graphite - SOLD

[Pete.]

With a problem like this I always go back to the last thing I did before it happened. In your case this was re-fitting the blue LED sidelights. Did you have to remove the nose fairing to do this? If so did you unplug any of the connectors.

I had a similar thing happen to me once on a Suzuki. I unplugged a multi-connector behind the nose fairing on the main loom to do something and forgot to plug it back in again. I had the exact symptoms you describe - funky dash outputs and no fuel pump though the engine would crank. I would suggest re-checking over the wiring up near where you were working.
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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

[aletank]

THanks for the reply, changing the side lights is just a case of removing a small cowling, then removing the cover held in with one fastener,then the bulb pulls out.
I'll go over the area again to double double check because if i don't and it turns out to be that I'll kick myself even harder!!
____________________
2004 05 Plate Yamaha R6, Mistral Black - SOLD
2009 Triumph Street Triple 675 R, Matt Graphite - SOLD

[Pete.]

Hmm, don't sound likely TBH
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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

[aletank]

Bike fixed!! I took it to the main dealer in the end, it turned out to be a broken wire going to the Yamaha immobiliser. 2 hours labour £120. Wish I would of took it the dealer straight away now!
I'm not sure where the wire is or how it got broken, the mechanic wasn't there when I picked the bike up so couldn't ask him.
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2004 05 Plate Yamaha R6, Mistral Black - SOLD
2009 Triumph Street Triple 675 R, Matt Graphite - SOLD

[TUG]

Alright? Bet you glad collin fixed it for you in the end eh? Told you nothing gets past him!
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Haz ER-5, innit!

[aletank]

[TUG]

[aletank]