nsr 125 alcast 1992 CDI help

[funkysnair]

well guys i was messing with the bike the otherday pulled off the regulator to clean connectors and the plug from loom touched part of the frame resulting in a rather impressive spark, now to me instantly this isnt good and i was rather upset with myself for A still having ignition on whilst messing with electrics B not dissconnectting battery GRRRRRR

on further investigation i found the inline fuse is not there and the clips are just wedged together - person before me done this but i should have checked!!!!!
now upon firing my bike up its become nearly impossible to fire up and when it does its running like a bag of hammers, sounds like its missing when revving up and just stops dead while ticking over.

tried to fire it up straight after and nothing - took off plug cap and put in a fresh plug and earthed on bike frame turned her over - NO SPARK - NO SPARK - FAINT SPARK - FAINT SPARK - BIG SPARK - NO SPARK etc etc etc...

replaced a few parts
new coil - new iridium plug - regulator rec - problem still persists so i ordered a cdi off ebay which come in the post and is marked KR1 CF498, now this cdi is half the size of the one thats in the bike wich is marked KY4 CI572, the bloke who sold the cdi to me says it would fit the bike (bought it from a seller who was breaking a full nsr)

so can you guys give me some pointers as to whet you thing the problem could be and would the smaller cdi be ok for my bike?

cheers
ken
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honda nsr jc20 alcast 1992 - project
honda xlr 125r 1999 - workhorse

[cb1rocket]

try the smaller cdi, if it works its solves your problems. May have a different limiter and what not, also did these NSR's not have power valves in the exhaust?

[funkysnair]

Yes it does have a powevalve and servo works fine, if the cdi is restricted or for different bike then it's pointless as I'm running a derestricted bike.

Couldn't see point in running one of these without the toppend revs as that's where it's all at

Cheers
Ken
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honda nsr jc20 alcast 1992 - project
honda xlr 125r 1999 - workhorse

[funkysnair]

wired in the KR1 CF498 cdi and fired up straight away so im guessing my original cdi is goosed.
warmed bike up and started to rev her up, noticed the powervalve servo wasnt moving at all and bike hit a wall at 9,000rpm....

when i get bike fired up with original cdi powervalve servo works.

is there a nsr out there that doesnt have a powervalve? that would help me identify this cdi

cheers
ken
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honda nsr jc20 alcast 1992 - project
honda xlr 125r 1999 - workhorse

[cb1rocket]

aww crap its a restricted CDI, could be modified to work perhaps?

There's a guy on here called Alains (I think) guru of the NSRs

[alains]

i'm not a guru
i'm an owner who learn what he has between the tighes
an other tip : when you invest in a machine , keep yourself inform on how to keep it healthy !!!!!
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the worst day fishing is better than the best day working