Curvy starter not turning.

Hello all, I'm in need of some help with my 02 svs. This weekend I travelled down to cornwall and back (~400 miles) no immediate problems whatsoever (the lights flickered at one point but thought nothing of it as noticed no change other than that to the bike). This morning I go to start my bike and nothing happens...

Put key in ignition & turn (instruments light up and all lights are working), go to start the bike but nothing happens - engine doesn't even attempt to crank over. I started by checking all fuses including solenoid and they were all ok, checked battery and its fine, kill switch isn't on, then i bypassed clutch but still nothing happening. Using my extremely limited knowledge (guesswork?) i thought it may be starter switch so checked the connection and made sure it was secure. Still absolutely nothing though its as if im not pressing the starter at all. I've tried with stand up - didn't bypass as shouldnt make a difference to actually starting the bike as far as im aware. No idea if when the lights flickered on the ride back on sunday it shorted something or caused damage to the starter circuit hence why it kept running but wouldn't start?

any help would be greatly appreciated as i am completely stumped and don't want to take it in to a garage a) for cost b) would like to learn myself!

you got a multi meter?

[Sid Squid]

Just to clarify; everything else electrical works, yes? If no, what else doesn't work?
Does the solenoid 'click' when you press the starter button?

If no, then the first check to make is whether the solenoid is being powered or not, check there's suitable voltage on the yellow/green wire in the four pin plug on the solenoid when the starter button is pressed, (and all the other conditions for starting are met - neutral, sidestand etc). You'll need to back-probe the connection as if you remove the connector block the entire bike's electrics will be dead. If there is voltage there the solenoid isn't functioning, if there isn't see below.

Can you bump start the bike? If yes, then the circuit up to the right switchgear is OK, as the supply goes to the stop/run switch and the output of that to both the ignition system and to the starter button. If it had failed before there it wouldn't run with a bump.

The circuit is: stop switch - orange/white wire - starter button - yellow/green wire - right switchgear connector block - yellow/black wire - left switchgear connector block - black/yellow wire - clutch switch - black yellow wire - left switchgear connector block - yellow/green wire - solenoid connector block.

+1 try to bump it

Everything else electrical on the bike works. Absolutely nothing happens when the starter is pressed. Will check voltages as you suggest tonight when I am home and report back.

If that's the case it is the starter, remove it and strip it, clean it up they sometimes will work, else buy another.

[Sid Squid]

Originally Posted by Lawman

If that's the case it is the starter, remove it and strip it, clean it up they sometimes will work, else buy another.

Not necessarily - if the solenoid isn't being powered then the starter won't get powered either. OP hasn't replied on whether the solenoid 'clicks' when the button is pressed, if it doesn't then a diagnosis of a failed starter is a little premature to say the least.

Few little things that can cause this on 02 (assuming battery has charge). Bad connection inside switch housing (starter button) or between it and relay, turn signal relay, resistor inside ignition lock, clutch switch.

I had this, went through everything with a multimeter, removed my spyball incase it was that...turned out the clutch bypass connector had come out a little bit. oops. On the brightside, it got rid of my spyball immobiliser!

[Grant66]

Had a similar issue on my 02 Curvey, starter switch was the problem and just needed the contacts cleaning.