Odd Noise - Ignition on but engine not running

[Not_Found]

Hi - my 2019 new-to-me Sport 1050 was delivered today.  Very pleased, it's a lovely ride.  But one odd feature I haven't encountered before.  Hoping someone can enlighten me. 

You know when you turn a modern bike's ignition on, there's a few seconds of whir, bleep "dial-up internet" noise?  Something to do with the throttle bodies getting themselves synchronised, I believe.  Well my new 1050 Sport does that, but after the whir bleep stuff it continues to make an odd, high-pitched noise - I've left it for several minutes and it doesn't seem to stop. 

The noise sounds like radio static, or steam escaping from a leaky radiator. It occasionally changes tone, and when I turn the ignition off, a few seconds later there's a solenoid click and the noise instantly stops.  So I know it isn't literally steam escaping from the radiator, it's an electrically switched function.  Maybe ABS pump, although I've never heard those be noisy before. I've taken a short video to illustrate - https://mega.nz/file/zFFzXb7L#40wVRW5RiKSHD4vbcWbId2ILPXbRvRVj10MNxWR4rw8

So, do they all do that sir?  Or should I be contacting the seller (Triumph main dealer).  Thanks in advance for your wisdom.

[Sidewinder]

That's not right.

The short whirr is the fuel pump priming.

After the fuel pump has primed, pull the fuel pump relay - left one of the row of four relays - see if the noise stops?

[Not_Found]

Originally Posted by Sidewinder

After the fuel pump has primed, pull the fuel pump relay - left one of the row of four relays - see if the noise stops?

Thanks for the suggestion - the strange noise continues if that relay is pulled out. 

May be coincidental, but now the engine is cooled the noise has changed to a rise-and-fall whine, with a "dot matrix printer" chatter beneath it.  (video - https://mega.nz/file/KU1VDTYC#OwssdCLDDOqqozBiOX-_pnH40vqvvjc-sZGKk7tdOs0)

[Sidewinder]

Ok not fuel pump then.

Maybe go round with a screwdriver stethoscope and see if you can localise it?

[Not_Found]

I've localised it to somewhere under the fuel tank, louder on rider's left.  My guess is an actuator or flap in the airbox/throttle system is sticking, but I'm not going any further on that hunch.  This bike only arrived today, and has Triumph Approved Warranty, so I'm going to ask the supplying dealership to rectify it.

Thank you for the help - I'll update when I know what it was.

[Admin]

I've taken a short video to illustrate ...

Small point on your post. Maybe consider using YouTube for your vids. Reason is that vid link you posted expires in two weeks so later readers to this thread won't be able to see it.   

[Not_Found]

Originally Posted by Admin

that vid link you posted expires in two weeks ...

I'm sorry, I didn't realise.  Thought I could share from Mega indefinitely.  If the links break, I'll upload to youtube for continuity.  Thank you for the kind nudge.

[Not_Found]

Originally Posted by Sidewinder

Ok not fuel pump then.

You were very close, I think.  Today I emailed the dealership (Linds in London) for support, but had another look while I waited for a reply.  First development was that the orange MIL engine fault light was now illuminated (it wasn't last night).  So I plugged in the trusty TigerTool and read the DTC - P1231 "Fuel pump relay short circuit to ground or open circuit"

I'm absolutely sure I pulled the correct underseat relay last night (see pic) and the noise didn't stop.  Also the noise is from under the fuel tank, so my theory is that P1231 is being activated by some other defect in the fuel system, which isn't powered through underseat relay 4. 



Anyway, the dealership noted 12.4v battery level on the Tiger Tool report, and said it might be a low voltage issue.  They asked me to charge the battery and reset the DTC, which I have now done.  After a quick test ride, the fizzing/rattling noise is still present. I expect the MIL light to come back on after logging a few repeat fault events. 

On the bright side, Linds assured me that under Triumph Approved warranty I can take it into any local Triumph dealership for repair.  So I'll ignore the noise until the MIL comes back, and then take it in for a hands-on technical diagnosis. 

Can't pretend this hasn't taken the shine off New Bike Day. I've owned this for barely 24hrs, and haven't yet been able to relax and enjoy riding it.  But so far the signs are good - the Tiger Sport has plenty of grunt, doesn't seem slower than my MT09.  And it floats over rough roads beautifully, where the Yamaha bounces around like a supermarket trolley.

So, I'll update when something happens but I want to say thanks to all for the kind advice.  So glad I came home to the Tiger Team, 

[Sidewinder]

Pulling the fuel pump relay while ign is on is what has brought the MIL on.

My next guess would be it's the stepper motor on the throttle bodies or the mechanism/motor that actuates the butterflies if it's a throttle by wire thing.

If you twist throttle with ign on/engine off does it change the noise?

[Not_Found]

Good grief, Sidewinder.  Are you literally psychic? 

Yes, twisting the throttle immediately changes the noise, in a smooth linear curve. It's so responsive to twist that I could probably play the national anthem on it. This is a ride-by-wire bike, so I think throttle actuator must be the defect. I can't inspect further without removing fuel tank & airbox, so the bike will be going to a local dealership for repair. 

Thanks again.