748 Suddenly Wont Start!!
 

HELP AND ADVISE NEEDED-

ON MY WAY TO A LAST RUN OUT BEFORE REALLY BAD WINTER ON MY 748 BIPOSTE, STOPPED AT SERVICE STATION FOR PETROL, PUT SIDESTAND DOWN FILLED UP, SWITCHED BIKE ON- PRESS FIRE BUTTON AND NOTHING!! bike totally dead, checked sidestand, killswitch etc but nothing.

Called AA who came out, they checked battery, alarm, fuses, etc, he even put his own external battery on, and the bike would turn over but not fire up.

So decided to go for a coffee and wait for recovery van, an hour later walked back to bike put key in and BEHOLD it fired up so i rode home as quick as i could not stopping just in case!

Fast forward two weeks, bike resting in garage over winter battery on optimate, time for a quick turn over, put key in, switch alarm armining off, sidestand up , press fire button, bike turn over beautifully. Turn ignition off using kill switch to test, put killswitch back, press fire button-this time NOTHING.... full power, lights etc, but NOTHING!!! Bike has a datatool evo alarm, anybody can advise what could be causing this problem, or what steps i should use to try and isolate the problem, All fuses checked by AA, bike never seen water, so no terminal corrosioon?????

There's a small white connector plugged into the back of the solenoid. It's quite notorius working loose and causing your problems.
The solenoid is on the RHS of the battery tray. Pull the connector out of the back and using a very small driver, tighten the pin connectors. Push it back in and to make double sure run a thin cable tie between the two wires and around the solenoid and pull tight.

I have the Nelly "solenoid enhancement modification" on my 748R.

Works a treat :)

Seriously though, it does have a habit of working loose.

Faulty alarm - rip it out and kill it.

Try replacing the relays under the seat area if the fuel pump is not priming (whirring sound).;)

+1:)


Chris:burn:

thanks Nelly, i will try this fix the weekend to see if it cures the problem