Starter release differences?

[stopintime]

Local 750 ie owner has starting problems every other time, or so.

He says the starter keeps going after his starter button is released (the times the bike won't start)

My '07 is like that - I only push one short push.
Are the older bikes like that, or do you have to push and hold the button for as long as it takes for the bike to fire?

Any idea when Ducati switched from one procedure to the other?

[Howie]

The switch on the 750 would have happened in '02.  Sticking solenoid.  Replace it.

[stopintime]

 
My impression is that the old (?) bikes' starter turns for as long as you push the button, where the new bikes require one swift push for the starter to turn "forever" or however long it takes......  Correct?

Does a sticking solenoid explain starting problems?

[Ddan]

It would explain the starter continuing to run, but not the motor failing to start.

[corey]

My impression is that the old (?) bikes' starter turns for as long as you push the button, where the new bikes require one swift push for the starter to turn "forever" or however long it takes......  Correct?

Does a sticking solenoid explain starting problems?

I don't think it's FOREVER. It seems like 3 or 4 cranks, then it gives up and waits for another push.
Also, this function is definitely 100% ECU controlled (obviously). With my starting circuit bypassed (start button linked directly to solenoid) my starter button functions like the older bikes (hold to start).

[Speeddog]

'01 S4 and all '02 and later Monsters had the IAW5.9 ECU, which directly controls the signal to the starter solenoid.
The ECU checks a group of sensors to determine if it's safe to start the motor.

All Monsters prior to that had direct button-to-solenoid wiring.

I've seen that behavior from damaged ECU's.

[corey]

'01 S4 and all '02 and later Monsters had the IAW5.9 ECU, which directly controls the signal to the starter solenoid.
The ECU checks a group of sensors to determine if it's safe to start the motor.

All Monsters prior to that had direct button-to-solenoid wiring.

I've seen that behavior from damaged ECU's.

Yup. What's interesting however is that the bike still will not start if those sensors are tripped. The starter will now crank, but the bike still won't start. For instance, if the kill switch is in the OFF position, my starter will crank, but the bike will never start (no spark?). Or if the kickstand is down with the bike in gear... same business. Bike will start in gear.. but obviously stalls out after a small jerk...

Not the safest, i know, but an ECU isn't in the budget for this year.