CDI: would the cdi for an er5 be the same as a gpz500

[shleppy]

i now really need a cdi for an er5 and because of their stupid deisgn they are in short supply, i dont think i can afford the price of a new one, so i need to find out but all the breakers ive contacted do not have one.

can someone tell me if the cdi for a gpz500 would work with the er5.

[baldy]

they look the same, just a different colour. whether they do the same is a different story.
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One day i will rule the world, just not today.

[Jamie S]

what heppend to the one on ebay shleppy ?

[baldy]

probably went for a fortune.
____________________
One day i will rule the world, just not today.

[Jamie S]

it was on £15 last time i seen it with like 2 days to go

[shleppy]

went for £92, i didnt get it, i was well pissed

[Jamie S]

would you have payed that for it ?

[shleppy]

at this point, quite alot

[Jamie S]

tbh thats what puts me off them bikes, i have heard they go wrong a lot on them .

[finpos]

shleppy -

I saw your other thread, there is still some hope for you.

CDIs are generally are pretty tough and have a lot of internal protection - they are the last thing that will go pop.

You say your Rev counter is damaged. The rev counter takes it's signal off the low tension side of the coil. If the rev counter has broken and is grounding it's signal wire, then you'll get a misfire. Possibly if you disconnect the rev counter signal wire, the engine will stop misfiring. If you point me at a wiring diagram I can be a bit less vague.

Your bike is a twin yes? how many coils has it got, and have you checked the spark from each one?

finpos.

[stinkwheel]

The CDIs have a different advance curve because the engines have a different fuelling profile in the carbs, you wont believe how much 'till you see the throttle needles next to one another. The GPZ has a much hotter cam too.

There are also two different CDIs for the GPZ, one engine has a wasted spark, the other doesn't (although the wasted spark one still has two seperate coils, which struck me as odd)

[finpos]

Schleppy sent we the wiring diagram and I spotted the direct link to the ignitor to the rev counter. Unfortunately that means that the signal is probably taken from the less protected side of the ignitor gubbins. There's still some hope for disconnecting them, but I'm more pessimistic about it.

finpos.

[stinkwheel]

I put a GPZ500s D1 rev counter on a GPZ500s C and it reads exactly half revs.

If I worked it out correctly, that means the D models have two pickup coils and the C models have just the one.

[shleppy]

have sourced an expensive cdi from a breakers after frantic midnight emailing. just gonna get that, they are so hard to come buy. ty for explaining it better i was doubtful that it would be possilbe to interchange the cdi's

[finpos]