I have a 750s 2002, been running fine, went out last week turned the key and never heard the fuel pump prime, pressed the starter and turned over but never started. Called out the RAC, the guy spent a while working on it and came to the conclusion, no fuel pump and no spark from the plug, must be the immobilizer or ECU, cant help you sorry and went. I know any bike could have these problems but are the 750s prone to them, just to quit after running so well. Any help. Mike
I had this happen to me, exact same kind of bike. My dealer fixed it, apparently it was a cable under the tank that had worn through. From memory, I think the dealer said it was a lead on the ignition circuit but maybe he said it was the immobiliser (DataTool). Sorry I can't be more specific but the point of my reply is that it may be something simple, perhaps a wire needs mending. Someone more knowledgeable may be able to supply pointers for checking this.
My SS quit running while accelerating due to the bloody alarm draining battery !!! Talk about scary moment!!! Cut the annoying thing off in the end Check all relays too Hello and welcome by the way
From memory, the 750S uses the IAW15 ECU so it is not going to be a Ducati immo problem. It doesn't have one. As suggested, renew the relays. Check the wiring for the fuel pump/injectors under the tank as they are prone to damage. After market alarm? You don't say. If you think it is the ECU then see if you can borrow one to test. It is plug and play.
My knowledge is zero when it comes to ecus and relays. Oil plugs and filters after that I call in a mechanic. I'm a bit stuck until I can get a decent one that fits my budget. Thanks for the post. Mike
It has a Hawk alarm, looks like it's been there a while, I'm not to impressed with the wiring. The mechanic that's going to look at it is away for another week, we will have snow by then.
Looks like a cheap and cheerful alarm. I would trace where any circuit has been cut for the immobiliser and reinstate the circuit. Looks like the fuel pump circuit.
No fuel pump and no spark. This is my first bike and I've no experience with wiring, I could just botch the whole thing. Thanks anyway.
Oddly enough, my 750 wouldn't start this afternoon, leaving me stranded at work. Ignition switched on, fuel pump primes, hit the button, solenoid clicks loudly, no turning over. Eventually, it transpired that the bolts fixing the live and earth leads to the solenoid were not tight. A quarter-turn on each nut and off she went. There's always something, isn't there!
No need to snip anything until you are sure Mike, if your loom is standard then study the route until you find a wrapped splice/joint that looks non-std, unwrap the insulation (what's the worst that could happen even if you got it wrong? you can just re wrap it) then using the wiring diagram just correlate the wire colours and hopefully identify the alarm wire which you can then trace back to the alarm to confirm. Now you are hunting for the other 'tail' of that standard loom wire run which will be the same colour obviously. You can gain confidence when you discover that the wire you found is an ignition or engine-running related wire. Repeat this process looking for ' interrupted' wire runs ( usually up to 4) until you have accounted for all wires going to the alarm - there will be a live and earth wire usually as well.
