Hi guy's, my 98 916 stopped on the way to work yesterday. At the side of the road it seemed the pump wasn't priming. Hit the relay wobbled all the wires, Nothing. Then 5 mins later while turning key on and off it made the right noise and fired up. Did 30 miles today without an issue. Anyone had similar? Will look in the tank at the weekend but a heads up on any common issues would help. Cheers guys... Greg
I’m stating the obvious but intermittent faults are the worst aren’t they?.. could be so many things in the chain of command, I take it that other ancillaries worked but just the pump wouldn’t prime? If not then basically even battery connections, ignition switch (rare), Killswitch, Pump it self (of course) solenoid and starter motor could be responsible plus connectors on route of course . I appreciate you don’t want to take a meter with you and start testing on your way to work but you can for instance, put your finger on the starter solenoid while you push the starter button and you should feel a “pulse”/hear it click and it will at least tell you that the current has got this far via ignition switch and Killswitch.. Kill-switch it’s quite a popular one and repeatedly switching on off, on off might reveal this.
This is from a few years ago ..... might be worth a look There were some problems cropping up at the point where the wires pass into the tank . Here's a description / fix ..... http://www.canberrariders.org.au/in...ues-solved-ducati-and-possibly-others.137839/
yes, I have an early MultiStrada where the routing through the pump housing seems to play up on many bikes approx 2003 on, but it doesn't seem to affect the earlier 748/916/996 afaia (despite a similar system) for some reason, but can't be ruled out.
I'd replace the relay first, they are prone to failure and starting off as intermittent is usual. Happened on my 96 M900 and 02 ST4 (I just linked out the side stand safety relay in that case) Hope you find it quickly
You are right Harry, if it’s just pump not priming then relay is a good one, i’ve forgotten, is it the one under the seat that you can swap over or the smaller normally yellow one?
Hi Chris, its one of the two under the seat, also the fuse(s) under the seat can get a little hot with dirty contacts, one does the fuel pump the other the ecu and overheating or pitted relay switch contacts can cause intermittent operating, usually obvious from discoloration around the relay connection pins. The yellow one is the high capacity relay for most of the switched services down by the battery. For the OP if you are opening the tank I would recommend replacing the fuel filter and pump tubing as a precaution unless you know it was done within the last couple of years.
Happened to me years ago. Got some replacement relays at Halfords for a few quid. They are still in there now. I keep a spare in the tool tray since then.
Cheers for the help - I'll let you know what I find - I've had the bike 6 years and never been Inside the tank!
Probably a good time to have a look in there as well. You can get the orings for the fuel pump plate and the quick connectors from simply bearings for a lot less than Ducati sell them. Fuel filter is KL145, again widely available.
Having a few ciders messing with the bike, wiring all checks out but blimey there's more paint in the tank than on it. Got familiar with the wiring and gonna leave the multimeter under the seat. But honestly there was so much paint debris round the pre pump mesh I wouldn't be surprised if it was causing a problem. Cheers for the help.
Very yellow but so is the bike, that seal was fun to get back in, thank god for you tube. Did the longer bolts and wind it in whilst teasing that seal. I swear one of the big bits was masking tape. Thanks
I had a similar experience with my 748, bike didn’t cut out, or stop until the key was turned off, but intermittently when the switched back on the pump wouldn’t prime, turn key on and off repeatedly and eventually it would come to life. Turned out to be the yellow relay to the left of the battery. Took a while to identify it, cost a fiver for a new one and it’s been good as gold since
