NLC: Motorbike fuel pump testing..

[chris_c201]

Hi folks,

Used the bike today for the first time of the year and half way to work it decided to die, on the motorway.

Now just turns over but won't fire,I think it's fuel related as it's failed to start before then eventually fired up. I previously assumed it was alarm / immobilizer related (may still be) but not sure now as it started and was running fine then cut out.

When it's failed to start before, and now, when I turn the ignition on, instead of hearing the fuel pump priming I just hear a clicking noise.

Any ideas how I'd test whether the fuel pump is getting power and running?

It's a 2004 Yamaha R1, late 5pw model.

Any input appreciated.
Chris

[flyingscot68]

I'd normally check that there's a spark. If there is then is more than likely the fuel pump.
Check the filter isn't blocked and also try starting it with fuel cap open. I've seen bikes refusing to start due to a vacuum in the tank caused by blocked breathers.
Does sound fuel related.

[chris_c201]

I'll get in and take a look today, fingers crossed something simple

[Shug]

I've recently had this with my old 7R. The most foolproof way to be sure is to connect some cabling between battery and pump connector itself (in proper Shug-bodge style, I used some beefy speaker cable I had lying about) to double check it's the pump. More likely to be a relay, than the pump itself (although the click sounds like a relay, unless it's a constant clicking, which could be a knackered pump), but best rule out the first link in the chain, then work your way through it.

I'd do the stuff Kenny suggests first, to see if there's a simple explanation before digging into the pump though.

[Cisco]

If you have to take the pump out of the 04 R1 tank be aware that it is a very very tight fit to come out the mounting hole. You will need to give it a good tug to come out.

Normally a reliable piece of kit tho, ive had to take a couple out but only because of tank damage

ATB

Frank

[chris_c201]

After fumbling about with the volt meter in one hand, manual via phone in the left, for about an hour yesterday,I finally decided I was wasting my time as told myself / and wife that I wouldn't waste hours stripping stuff down.

As such got a mobile mechanic coming out tomorrow.

I'm pretty sure it's the alarm or the fuel relay, will report back when I've likely been proven wrong!

[chris_c201]

Alarm it is....now need to get it removed / by passed.

Any decent auto electricians recommended / rough costs?

I managed to bypass an alarm on a previous bike but struggling to find any info on this one (datatool s4 from the code I can see).

Cheers,
Chris