CDI units

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masterofinsanity
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CDI units

Post by masterofinsanity » Wed Jun 11, 2008 12:45 pm

taken from a post by Zimm from another thread, zxrworld & zxr400ownersclub and any persons involved with either ie me will not be held responsible for any innaccuracies.
zimm wrote:all L model cdi's are interchangeable, as are H models, but you cant put an H on an L or vice versa as the ignition rotor lobe spacing is different.

SP cdi's (L model) have a different advance curve, but also require(?) a TPS and flatslides.

the UK spec L model CDI (which has serial number 1332) has no speed restrictor circuitry so will allow you to exceed 180kph without an MMax derestrictor, or kph/mph converter
Don't forget people there is more to the zxr400 than this forum... check out www.zxrworld.co.uk also.

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Re: CDI units

Post by zimm » Wed Jun 11, 2008 1:55 pm

errata : H and L cdi's are non-interchangeable due to an apparent difference in the loom, not as previously stated the differing rotor's.. apparently.. although its still a bit of a grey area, either way they wont "straight swap"

L box on an H has been tested and found not to work, although H engine in an L with original H rotor worked with the L box and loom.

additional : H cdi's have a higher rev-limiter @14,800rpm import L boxes limit to 14,500rpm and uk L boxes limit to 14,900rpm
Last edited by zimm on Mon Aug 25, 2008 10:00 pm, edited 1 time in total.
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Re: CDI units

Post by U_h0rnet5 » Thu Jun 26, 2008 9:37 am

masterofinsanity wrote:the UK spec L model CDI (which has serial number 1332) has no speed restrictor circuitry so will allow you to exceed 180kph
Just to add aswell, i read there were two blue sticker CDI's, a 1331 and 1332 and both are unrestricted. However I tried out the 1331 and this has a limit of 10,000rpm and only goes up to just over 100mph.

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Re: CDI units

Post by masterofinsanity » Thu Jun 26, 2008 9:45 am

Don't forget people there is more to the zxr400 than this forum... check out www.zxrworld.co.uk also.

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Re: CDI units

Post by rover220 » Thu Jun 26, 2008 5:18 pm

ive said it before but ill say it again anyway

my 1331 revs out just the same as my 1332 cdi and is not restricted that i can tell
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Re: CDI units

Post by U_h0rnet5 » Fri Jun 27, 2008 11:24 am

Well that didnt happen with mine all i could get out of it was 10,000rpm!!!

Does the letters make a difference???

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Re: CDI units

Post by masterofinsanity » Fri Jun 27, 2008 11:25 am

surely it aint gonna make any difference on the cdi if the limiter is in the speedo?
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Re: CDI units

Post by U_h0rnet5 » Fri Jun 27, 2008 12:21 pm

not limited on the speedo as i put the other one back in and it revs well over 10,000rpm

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Re: CDI units

Post by zimm » Mon Aug 25, 2008 9:53 pm

masterofinsanity wrote:surely it aint gonna make any difference on the cdi if the limiter is in the speedo?

it does, because the 1332 box doesnt talk to the speedo to find out what speed you are doing, so it doesnt know you've disconnected it either which is what triggers the 10k "limp home" mode.
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Re: CDI units

Post by jimbo » Fri Feb 12, 2010 11:21 am

hi, does a restricted cdi unit affect your acceleration?

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Re: CDI units

Post by cargo » Fri Feb 12, 2010 12:44 pm

If you have unplugged the speedo then yes cos the bike will only rev to 10,000

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Re: CDI units

Post by jimbo » Mon Feb 15, 2010 5:24 pm

i just brought a uk cdi with the letter L on it whats the top speed?

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