I have an engine and frame and need help identifying the models/years
.
Frame NC231009018
Engine NC23 E1009094

viewtopic.php?f=26&t=18530

Frame NC231009018 - Model, Code and Production Year - CBR400RR-L (1990 and 1991)
Engine NC23 E1009094 - Fuck knows CB400 maybe unless you meant E109094 in which case its
Model, Code and Production Year - CBR400RR-K (1989)

looks like you may have a 29 frame and a 23 engine....which are incompatible.

all the info is in the link.....doesn't hurt to say please by the way.

Hi, Thanks for that, the engine no is def 100, which is what got me puzzled, it is an older model, could it be an Aero?
Thanks.

yeah more than likely actually.