Gsxr k1 dead after trying to jump start it.

[Dan5jj81]

As per the title I tried to jump my GSXR 750 k1 off my other bike but my leads touched together and after a few sparks my bike is dead.

I have checked the 30 amp fuse that is fine and the bike will try turn over by bridging the black and red terminal.

Where to look next? Green plug on the left side?

I have no idea about electrics any help will be greatly appreciated.

[stinkwheel]

Wasn't it dead before you started? Otherwise, why were you trying to jump it?

What were the leads connected to at the time of the incident and which end did you short-out (donor bike or recipient)?

There are a whole load of other fuses which may be worth a check too.
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[Dan5jj81]

No the bike was just fine it didn't quite have enough power in the battery to start it. Now it's totally dead other than what I stated. I'm just wondering where to look next for power issues

[stinkwheel]

[Dan5jj81]

Just read the last message in full. Great thanks. I can see 8 other fuses on the right side of the bike near the handle bar. Are there any more?

[RhynoCZ]

Is it fuel injected? Do you hear the fuel pump after you turn the key on?
____________________
'87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor

[Dan5jj81]

Yes it's fuel injected. I'm not with the bike now but I'm sure I couldn't

[RhynoCZ]

Well, that's not good. Check all the fuses and hope you didn't burn the ECU. I do believe the fuel pump has to have its own relay and fuse, so I would start there. I take it the START button does nothing at the moment, right? Maybe the ECU won't engage the starter without the fuel pump running. It'd be also good if we knew whether the ignition still produces sparks.
____________________
'87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor

[Dan5jj81]

Thanks for the reply. Bridged the starter relay with an old spanner it tried to start the bike. I will try find where the ECU fuse is. I'm not sure where all the fuses are. I will go to the bike now

[RhynoCZ]

When you bridge the starter relay you by-pass every electrical system on the bike. This only tells us the starter works and the battery is good enough to spin it.
____________________
'87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor

[Dan5jj81]

Right ok thanks. I'm not sure how to check the ECU? I have a multi meter but I'm not sure how to use it

[RhynoCZ]

Just wondering, do you get any power at all to the bike when the key is in the ON position? Do the lights work? IF there is no power, whatsoever, the main fues must be at fault.

Checking the ECU requires a skilled electrician/engineer. The easiest way of checking whether it works is to replace the unit with a working one.
____________________
'87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor

[Dan5jj81]

The neutral light comes on. The main fuse looks ok

[RhynoCZ]

Are you sure the kill switch is in the ON (run) possition? Do you hold the clutch in when starting the engine? Suzuki bikes tend to have that, the clutch in thing.

I know these things sound obvious, but once upon a time, I forgot about the killswitch (my first bike with such killswitch) and I couldn't start the engine for more than half an hour, I even tried to push start it, several times.
____________________
'87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor

[Dan5jj81]

Kill switch is on as in good to go. No lights anywhere other than neutral light.

[Dan5jj81]

So I guess my next question is what would be the symptoms of a fried rectifier? I just thought that it just wouldn't charge the battery.

So if it's the ECU would it be likely to have fried the rectifier also?

Right so my 3rd question is could I just pug in a new ECU?

Thanks

[Riejufixing]

[Dan5jj81]

I was using quite heavy duty leads over to my other bike. It was a bit if a struggle to keep them on whilst trying to pull the clutch and start it. The positive lead moved and touched the negative. A fair few sparks then zero power other than the neutral light. No lights at all other than that

[Dan5jj81]

The sparks seem to come from just where the leads touched. But incidentally I think that's above the ECU

[Riejufixing]

When you bridged the starter relay, did you use the terminals there somehow, or bridge from the battery to the starter side of the relay, or the starter motor? I have no idea what is positioned where on your bike, you see.

[Dan5jj81]

They are near the battery I did it with an old spanner

[Riejufixing]

[Dan5jj81]

What do I test? The battery is at 12

[Dan5jj81]

I can go test the fuse but I have already tried other 30 amp fuses

[Riejufixing]