2000 Sv650s Starting issue

Definitely not the Starter Button or the kill switch as I just swapped them for a working one and again there was nothing. I'm at a total loss with the bike now. I cant see how it wont start as once the starter relay is bridged the engine cranks over. cant see what else I could do with the bike except another wiring loom and try that but that's out of my comfort zone.

swapped what? the switchgear?

If so there might be an issue further down into the loom, there is a lot more to check matey

yea I swapped the switch gear out for one the definitely works. As I said this is probably beyond me now. as I have looked at the wiring diagrams and they make no sense to me at all.

[yorkie_chris]

Well replacing the full loom is a daft option.

Get an indicator bulb with 2 wires on it and I will walk you through where to test

[yorkie_chris]

Right here's one way to troubleshoot the curvy wiring


There are two circuits you need to worry about, one is the "run" circuit the other is the "start" circuit, the first feeds the second.


So start from first principles. Get yourself an indicator bulb and two wires. Put one wire to earth.

Switch on the ignition. Gearbox neutral.

Check the back of the fuse box, an orange wire with yellow tracer should light the bulb.

Now check the back of the lockout relay, the orange wire with black tracer should light the bulb.*


This feed then goes to the kill switch. The easiest way to check this is to put your test light on the coil wires, this main switched "engine run" circuit is orange with white tracer. Check it at the front and rear coils and at the ECU connector.



Next is the "start" circuit, it splits off the "run" circuit after the kill switch. Put your test light on the yellow w/black wire coming out of the right hand switchgear. This should have fire when the button is pushed.

Then it goes to the clutch switch, yellow w/black into it, then yellow w/green out of it. **

If you still got current coming out of the clutch switch, then try it down at the starter relay ... but that's a PITA because the connector there has rubber boots on it.



*
Personally, I cut and solder the wires at this point, orange-yellow and orange-black.... this gets rid of all the sidestand/neutral bollox.

**
I cut and solder the wires for the clutch switch together on the bike side to get rid of the whole system. It's more reliable than a paperclip in the connector!

[Red Herring]

Hi mate, you say the tank is off. Is it off as a result of this problem or were you doing something else to the bike when this fault occurred?

[Sid Squid]

Read me for detailed starter circuit checks.