Hi Everybody..

Freedom · 10-26-2009, 5:29 PM

I've got a 1986 CBR400F NC23, which was a great ride till now...
it didnt run smoothly coz there was no ignition on piston 2&3.
I was only 3 miles from home at 2am n said I'll go through...
just b4 home, it stopped running, and there was no spark on piston 1&4 also..
the question is :
if it was ignition coil, did the second one stopped working because of the other or its just a coincedence? could it be the CDI? or any other part beside wires and connections?
PLEASE ADVICE ME what to do..

Sideshow bob · 10-26-2009, 5:41 PM

did you check for sparking when you got home?
have you still got no spark?

oh! and

to fireblades.org

Freedom · 10-26-2009, 5:46 PM

Thanks for wellcoming me..
I still dont have a spark at all cylinders, and I didnt reach home with d bike..

Twincam · 10-26-2009, 5:53 PM

Where abouts in London are you from?

SSB are the coils on these individual or is there one complete unit for all four leads?

jazzy · 10-26-2009, 5:55 PM

to the .Org

Sideshow bob · 10-26-2009, 5:57 PM

I'd check were you getting power too before looking at anything else.....

rule out the cheep stuff first

do you know if you getting power to the coils?

Sideshow bob · 10-26-2009, 5:58 PM

Quote:

Originally Posted by Twincam

SSB are the coils on these individual or is there one complete unit for all four leads?

same set up as most twin..... one coil to two cylinders

Freedom · 10-26-2009, 6:30 PM

First of all:
Thank u all for the effort to help.. I really appriciate it.

now, there r 2 coils (cylinder 2&3 and Cylinder 1&4) are they the same coils? the same actual part? but only connected to 2&3 or to 1&4?
and how do I check if I have power to the coils?

Freedom · 10-26-2009, 7:26 PM

how do I check if I have power to the CDI?
how do I check if I have power to the Coil?
how do I check if I have power to the main spark unit?

setanta · 10-26-2009, 11:38 PM

Surffrog · 10-27-2009, 4:16 AM

Freedom.

This problem sounds very much like something most 400 owners go through. Firstly, I would start from the beginning. Check the main fuse - probably located under the seat on the left side of the bike. If okay, then put a volt meter on the battery with the ignition off. It should be reading at least 12 -12.5v. If it's reading lower than 12v, then the chances are that you are either using too bigger wattage light bulbs (the stator on these bikes can't support the current drain) or the stator coil (not to be confused with the spark plug coils) is on the way out. There is one other thing it could be. The regulator/rectifier is located under the tail fairing (black box), and has several wires going into a white coloured connector. Check the thickest wire coming out of that connector. It's the one heading under the riders seat. Try bypassing it with an equally thick piece of wire. They get old and corrode from the inside while still looking perfectly good on the outside. If the bike then starts, replace the wire.

If none of the above helps (and you've checked all the fuses), then it is possible the reg/rec has died.

Freedom · 10-28-2009, 2:28 PM

thank u all..