Race Loom

duke907ie · Post by **duke907ie** » Thu Jun 25, 2009 10:58 pm

I have tried to make a race loom up and followed the one in the manual BUT now don't have a spark!! :smt013 Can anybody who uses one please tell me if the Grey wire going to the 4 pin plug on the ignitor box go to ground or positive?
Thanks

Davw · Post by **Davw** » Thu Jun 25, 2009 11:51 pm

IIRC it goes to positive via a 100ohm 1watt in line resistor. If you havent put the resistor in the grey wire then no sparks

duke907ie · Post by **duke907ie** » Fri Jun 26, 2009 8:46 pm

Thanks for that reply, it makes sense to me now you've told me that.

duke907ie · Post by **duke907ie** » Sat Jun 27, 2009 4:11 pm

She runs!!!!

jamkwak · Post by **jamkwak** » Thu Jul 02, 2009 10:01 pm

Davw wrote:IIRC it goes to positive via a 100ohm 1watt in line resistor. If you havent put the resistor in the grey wire then no sparks

Hi Dave,

Can you tell me why the need for the resistor..?
I have a zxr750, made up a race loom and no spark either...I wonder does it need a resistor aswell...?

John

Davw · Post by **Davw** » Thu Jul 02, 2009 10:22 pm

Not sure if the 750 needs it but possibly. As I understand it the resistor overcomes the inbuilt anti-hot wiring device in the ignition key switch which drops the ignition voltage to the CDI from 12 to 9V

Davw · Post by **Davw** » Thu Jul 02, 2009 10:24 pm

Sorry - it doesnt overcome it - it replaces it - as obvously with the key switch out of the system (as per a race loom) it is as though the bike has been "hot wired"

benedict · Post by **benedict** » Sat Jan 21, 2012 6:11 pm

i am building a zx9r race loom trying to copy zxr400 loom but their are slight differences.can you shed any light on the subject

www.zxrworld.co.uk

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