cdi problems

[lvn]

i got a new high rev cdi and ive wired it up. it gets a spark but the bike doesnt run like normal, it just seems like the spark timing is out cause it pops and splutters and then evetually dies. have i wired it up wrong or is the cdi just not usable on my bike?

 

[Shing]

Valve timing perhaps?

 

[lvn]

my other cdi ran perfect though

 

[samual]

all cdi r useble on bikes does the bike idle ok then under load it dies off on ya if so its a dud .cheers

 

[lvn]

it just doesnt run right, takes ages to kick and when it fires it blows smoke, doesnt idle and sometimes blows back through the carby, my old cdi didnt have any of these problems, does this mean the cdi is a dud or its just not connected properly?

 

[china boy788]

if it works fine on the old one,,, jst put that one on...

 

[themountain]

my other cdi ran perfect though

Why did you changed it then , Dumbo??

 

[headsmess]

Why did you changed it then , Dumbo??

now now, be nice it was all in the hope that a 30 dollar part would actually do what the adertisements say....instant performance gains

makes me wonder, does an irk require a special cdi cause fukd if i know why this 140 wont start.... compression spark and fuel...not even kicking back on me....this week is my " i hate china" week though, so...maybe next week.... i hate china, chinese, and anything thats crossed the chinese border....

 

[themountain]

mmm..sorry HM...I see that now....

 

[Cactus Jack]

Notice he said he "wired" it up ? They come with a female plug that simply PLUGS onto a male plug ... I'd say he's got 2 of the wires around the wrong way so that it advances the idle too far then retards too much up top ... or even retards the idle waaaayy to far ...

Yes headsmess ... IRK's require their own special CDI box ... it's usually red or black plastic with a hole for screw mounting them ... The stock rubber mounted CDI's don't work ... and I've read that even those blue alloy things (Posh) don't work on 'em ...

You cruel , cruel man Mr Mountain ... don't you understand that he's probably distraught and grieving over the death of Wacko Jacko !!!!!!!!!

 

[headsmess]

well, that solves my problem thankyou besides having an engine with a damn irk at all... that will need an ezi-out to remove.... bloody second hand engines


poor wacko....ima gunna go get drunk and drown my sorrows....

 

[lvn]

so that would be my problem, mixed the wiring up? because i had to take the plugs off because i took my electric start off and all the stuff that went with it, so i had a dual plug cdi. this new cdi is only single plug but same number of wires so i took the plugs off and used adaptors to connect the wires, ill change the wiring and see how it goes.

 

[china boy788]

did u make the adaptors with connecters????? if so where did u get the connecter bits from the dual plug and the single plug??? i was gonna try to make a adaptore but couldnt fine the connecter bits so i gave up,,

 

[lvn]

i took the plugs off the wires so my wires were individual, then used just normal wire connectors to crimp the wires together

 

[headsmess]

ok, from the engine, you should have a blackred, bluewhite, and green. not always, but usually...

im assuming you got one of those blue "race" cdis, cause they dont need a plug, as they have a lead coming out. or similar...

but same deal, there should be black red, or just red, blue white, or just blue, and a green. then the other two wires, should be a black yellow, that goes to the coil, and a black white, which is the killswitch


it might just be a dud, as someone already said and if its been wired up wrong, its now more than likely a dud... (semi conductors dont like high/ reverse voltages on the wrong terminals...) and they dont really make any difference either ie, put the original one back on it could even be just a bad join on one of the terminals...

and, if you look around on ebay, there are adaptors already available...usually come included with the twn plug cdis.... usually. depends on the supplier

 

[lvn]

ill play around with it and see how i go

 

[Custom]

Just a side note on IRKs, i have had one working with the stock 'black box' CDI

 

[china boy788]

the colours on the cdi box is diff to the ones coming from the connector,,, umm i wood tell u where which wire goes where but i lost the sheet i had maded that toled me,, ill have a look around for it tommorm for u tho,, if u have another bike with the that same cdi off it,, jst follow where them wires come from and firgure it out then,,

 

[headsmess]

Just a side note on IRKs, i have had one working with the stock 'black box' CDI

hmmmm, well, not me... maybe a different black box... nah, i go see dhz tomorrow

and yes, it had spark, but i never tried checking the timing...

 

[Cactus Jack]

Here's some old threads ... You might find something useful in one of 'em ...

http://www.miniriders.com.au/tech-talk/11471-reviewed-racing-cdi-blue-type-3.html

On the second page there's a diagram for IRK's ...

And some more ...

http://www.miniriders.com.au/tech-talk/9223-need-lifan-140cc-wiring-diamfram.html

http://www.miniriders.com.au/tech-talk/13288-help-wiring-cdi-got-ripped-out.html

http://www.miniriders.com.au/tech-talk/19114-wiring-diagram-loncin-110cc.html