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Hi
I have an sv650 curvy 99....I shorted some light wires and now the bike is dead,no ignition...all fuses are good inc the main 30amp....I shorted the solenoid and bike turns over...could I have fried the ecu?

What do you mean by dead? Do you have any lights? Panel lights, indicators, brake lights when the ignition is turned on. Which wires did you short and what condition are they in now?

Calm down n take a deep breath:smt119
I dont think your bike has an ECU not like the later pointies anyway. A fuse should have blown when you did this so double check them all with a meter.... Also can you identify the colours of the wires that shorted?

Thanks...im adding lights to it....no there are no panel lights etc....and all fuses are good.....would a dead ignition box cause these symtems?

Sounds like a fuse to me. As glang says, check them all with a meter.

Yes you would think a fuse...but all good?...

Maybe a wire or connection has burnt out - unusual as thats what the fuses are supposed to prevent. Let us know which wires you think shorted and we can have a look on the wiring diagram.....

I'm assuming you've blown the lighting fuse, but do not replace it until the short circuit has been resolved.

Providing you have a voltmeter you can do some basic checks.

1. Check that the battery terminals are both securely connected, and you have around 12.7V at the battery

2. Check whether there is a 12V supply to the fusebox.

Connect the -ve lead of the voltmeter to the -ve of the battery, then unplug a fuse and use a bent paper-clip or similar to check whether there is 12V to one end of the fuse

3a. If there is no 12V supply in the fusebox, go back and do the same check at the main fuse. You've probably blown the main fuse as well as the lighting fuse.

3b. If you have a 12V supply to the fusebox, check the ground block. Most bikes have an earth connector block. Inspect this, and confirm that there is a working ground connection by connecting the voltmeter between +ve on the battery and one of the blade connectors. If there's no ground connection you might have a corroded connector which has overheated when you shorted the lighting circult.

4. Download a copy of the wiring diagram and work through it methodically starting with the ignition switch. Check each fuse in turn, verifying that there is 12V supply to each part and replacing fuses where necessary. Also check the ground connection by using the ohms setting on your voltmeter between the ground connection and the -ve on the battery (should be less than 1 ohm). When you get to the lighting fuse, skip it and do that once the bike is working normally.

5. Track down the fault in the lighting circuit, and once it's resolved replace the lighting fuse.

Just my thoughts,

Keith.

Thanks Keith.....the wire I shorted was the black wire with white stripe?

Quote:

Originally Posted by simon1 (Post 3092128)

Thanks Keith.....the wire I shorted was the black wire with white stripe?

No, that's a ground (earth) wire. You may have shorted something to that but shorting that to ground will do nothing.

Red wires will have 12V all the time
Orange/with a coloured stripe will be switched 12V

... but there will be other wires with power on them too, depending on where you were fiddling and whether the ignition was on.