Ah you went and brought one. :/ I'd have lent you one to test it.

Ok, well since you've checked the earths and the front coils also have no spark.

Possible problems:

Battery is undercharged (will crank but no spark)
Broken wire from Igition box to coils
Faulty Pulse Generator / broken wire / loose connection.
Faulty Plug Leads
Faulty Coils(s)

To measure the pulse coil generator you should have approx 450-550 ohms @ 20degrees c.

Try the ignition box first and see how you get on. If not get back to me.

PS: The VFR doesn't use a CDI box, it uses a transistorised ignition box, hence the coils being powered all the time. They all do the same job just slightly different. I think the concensus among racers is that CDI is better due to the higher voltage / hotter spark. Although some prefer the reliability.

http://www.jetav8r.com/Vision/IgnitionFAQ.html#a7p0" onclick="window.open(this.href);return false;

Theres more info there shoudl you wish to read up :)

I've managed to free up some funds so will take the bike down to the local garage. I think there's a bad earth or faulty wire somewhere but I'm buggerd if I can find it!

I've just been looking through the short history available for the bike.

Between 2006-2008 there were 3 changes of rec/regs. With a note on one sheet saying 'gen only running on 2 phases then pulsing intermittantly at excessive amperage'. And 'shorting at no.2 plug wire'.

Faults were then corrected. Do you think this could be a clue?

Thats just the bike eating reg/recs (which is quite common) maybe they never put a new battery on there...

And the fact the genny was cooked.

Your battery is fully charged?

Theres only 3 earths on the bike...

The first is the main earth lead from the battery to the frame
The second is a green wire on a tag that bolts to the front coil bracket
The third is on the radiator top mounting bolt. (I believe this only earths the rad / fanswitch but i'm not 100% without looking)

Unfortuantly electrical problems can be a right bar stwered to track down. But if you tackle it logically you'll get there in the end.. a garage might charge you an arm and a leg!

It's only going to be possible a few things.

• One theory that comes to mind is that they genny / reg rec faillings have burned out the CDI with too much voltage (quite possible) (you have a new CDI on the way to test this)
  
  Burned out coils (all 4 is unlikely but you never know)
  
  Bad Pickup Coils
  
  Broken wire(s) to any of the above
  
  Bad Earth / Kill switch
  
  Flattened battery.

What Reg/Recs on there now? When you get it sparking and running the first thing to do would be a complete full test of the charging system on the bike.

Any signs of it not being right, get a new battery (a top quality varta for these bikes are only about £20) and a gsxr reg/rec (bulletproof).

New stators are also available if its dead (this will be the most expensive purchase approx £55.00)

I hope you didn't pay too much for the bike >.< but fear not.. it'll live soon enough :)

Shame you live so far away else i'd offer to help you get it running again.

Neosophist wrote:Thats just the bike eating reg/recs (which is quite common) maybe they never put a new battery on there...

I count about 3 new batteries in the history :)

Neosophist wrote:Your battery is fully charged?

Nope, it's shagged! jumping off the car for now.

Neosophist wrote:Theres only 3 earths on the bike...
The first is the main earth lead from the battery to the frame
The second is a green wire on a tag that bolts to the front coil bracket
The third is on the radiator top mounting bolt. (I believe this only earths the rad / fanswitch but i'm not 100% without looking)

Thanks for this! I will get checking.

Neosophist wrote: Unfortuantly electrical problems can be a right bar stwered to track down. But if you tackle it logically you'll get there in the end.. a garage might charge you an arm and a leg!

Had a quote of 2 hours labour to collect bike & diagnose, approx £70.

Neosophist wrote:It's only going to be possible a few things.

• One theory that comes to mind is that they genny / reg rec faillings have burned out the CDI with too much voltage (quite possible) (you have a new CDI on the way to test this)
  Burned out coils (all 4 is unlikely but you never know)
  Bad Pickup Coils
  Broken wire(s) to any of the above
  Bad Earth / Kill switch
  Flattened battery.

What Reg/Recs on there now? When you get it sparking and running the first thing to do would be a complete full test of the charging system on the bike.

I think I'll be looking at a total replacement charging system. Not sure what RR is on, looks pretty standard. Will try to do the R6 swap.

Neosophist wrote:New stators are also available if its dead (this will be the most expensive purchase approx £55.00)

ok cool, but what's a stator? lol

Neosophist wrote:I hope you didn't pay too much for the bike >.< but fear not.. it'll live soon enough :)

I paid £650, which would be a good price, but what pisses me off is that he lied, told me it was a good running bike, would fly through mot etc, just needs a new battery (BS!! - I HATE buying selling cars/bikes, always someone out to rip you off and I'm crap at knowing what to look for/check). A non running bike like this should be more like £300-500. Ohwell, I guess that's what I should expect when buying a <£1000 bike.

Neosophist wrote:Shame you live so far away else i'd offer to help you get it running again.

No worries, your replies here are most helpful! Thanks :)

Lets hope they can diagnose it then!

Where do you live actually? I think I was confusing you with another memeber!

£650 isn't so bad providing it was in vgc and with mot / tax. You coulda had one off me for that :D (with R6 mod )

The Stator is the generator that sits in the engine and provides the power to charge the battery and run the bike... some people call it an altenator.

Erm.. You have a bad battery on there.. hmmm. Have you tried removing the battery completely and just using your car battery for now? Do you have decent quality leads to connect it up?

Neosophist wrote:Lets hope they can diagnose it then!
Where do you live actually? I think I was confusing you with another memeber!

Norwich :)

Neosophist wrote:£650 isn't so bad providing it was in vgc and with mot / tax. You coulda had one off me for that :D (with R6 mod )

Ok I'm gonna ignore this or I think I might cry (got any pics?)

Neosophist wrote:The Stator is the generator that sits in the engine and provides the power to charge the battery and run the bike... some people call it an altenator.

Ahh okay, well £55 doesnt seem too bad.

Neosophist wrote:Erm.. You have a bad battery on there.. hmmm. Have you tried removing the battery completely and just using your car battery for now? Do you have decent quality leads to connect it up?

Yup that's what I've been doing. Gonna have one last try looking at the things you mentioned yesterday, then the garage will pick it up tomorrow.
Cheers!

I just measured the voltage going to the coil terminals when connected to the car battery. And the answer is none, and that's whilst cranking aswell. Does that give any clue? Also I followed the Haynes manual for the pulse gen check, all seems ok, although the book sugguests 450-500ohms at 20c, I got 370 at 5c.

Christoph wrote:I just measured the voltage going to the coil terminals when connected to the car battery. And the answer is none, and that's whilst cranking aswell. Does that give any clue? Also I followed the Haynes manual for the pulse gen check, all seems ok, although the book sugguests 450-500ohms at 20c, I got 370 at 5c.

Yeah thats fine.. and you should have power to your coils!

Either you have a broken wire in your circuit or a knackered Ignition box!

Wait till the ignition box comes and see how you get on :D

Ok well, I'm gonna get the garage to have a look so I know for certain what is going wrong and I can concentrate on putting it right. At the moment I'm looking at:

New ignition/charging system.
Complete exhaust system (including can).
get the frame cleaned up.
wheels re-painted.
New Screen.
new bolts all round.
possible overhaul of brakes.

This list could get much longer after the garage has had a look

Plus of course a full service and MOT.