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Could my CDI be F**KED
CraigJ - 27/10/07 at 04:23 PM

The engine is a 88 Kawasaki ZX10, everything is coming on and working but im getting no spark?????

I know theres a live feed going to the coils as its the same one that goes to the fuel pump and the pump is working fine. the other 2 wires that go to the coils are coming from the Ignighter/CDI unit.

It worked fine before i removed it BUT when i was doing a bit of soldering very close to the CDI i forgot to unplug it, could this have damaged the CDI?

Does anyone local have a spare CDI that i could borrow just to see if its the problem as i dont want to spend £35 on a replacement if theres nothing wrong with mine.

Thanks.

bigrich - 27/10/07 at 04:32 PM

I would doubt very much you have damaged it by doing a bit of soldering.
Check the crank pick up and wireing and the sidestand/clutch switch wires to make sure they are connected/bridged correctly

Rich

Guinness - 27/10/07 at 06:12 PM

I can't help with the diagnostics of the cdi unit I'm afraid. I do have the Haynes though, so if you need the relevant pages I could copy them and post them to you (no scanner I'm afraid).

I blew one up once, but that was by leaving one of the coil input leads lying on the chassis. Hmm, melty.

However Zilspeed did have a VERY simplified wiring diagram for the zx10.

It was here http://www.locostbuilders.co.uk/viewthread.php?tid=54962
but for some reason I can't open the pdf. No doubt a u2u to him would see a copy on email to you. As I recall it was about 5 wires. Much easier than using the bike loom.

In fact if I ever get time, I'm going to remake mine in the same design.

HTH

Mike

CraigJ - 27/10/07 at 06:26 PM

Sorted. the side stand switch was'nt working right so ive removed it and just joined the wires. runs now, bleeping loud thought with out exhaust lol.

Guinness - 27/10/07 at 06:40 PM

Glad it's working!

I remember how loud mine was with just the bike headers fitted and no can!

Mike

zilspeed - 27/10/07 at 07:33 PM

Result !!

Well done indeed.

How far along is your build now ?

JoelP - 27/10/07 at 07:38 PM

quote:
Originally posted by Guinness
Glad it's working!

I remember how loud mine was with just the bike headers fitted and no can!

Mike


me too, i got halfway to harrogate before the pain was too much, had to turn round and go home! Couldnt give it any throttle at all!

i also remember how loud yours is with an empty silencer!

CraigJ - 28/10/07 at 10:06 AM

quote:
Originally posted by zilspeed
Result !!

Well done indeed.

How far along is your build now ?


Its getting very close to being finished now, going to update my blog next weekend, hopefully by next week it will be 85-90% complete. It will only be missing brakes, lights and nose cone/engine cover.

bigrich - 28/10/07 at 01:44 PM

Glad is was nothing serious (or expensive)

Rich

CraigJ - 28/10/07 at 02:35 PM

me too lol.