Hi, as you can guess i am new to the site so be gentle haha, i have recently purchased a cbr400 1990 model which requires a replacement engine. The engine currently on the bike has the engine number NC23E-12 can anybody tell me which engine this is and and advise on where to find one would be much appreciated.

Thanks

Sorry i dont know about that engine number, looking at the specs E-12 does not belong to a triarm or nc29. Bung a picture up of the bike and engine if you can. 1990 could be a 23 or 29 but being a grey import who knows and i dont know the numbers for the Aero 23. If you have the money i think Graeme France Racing could help on a recon engine.

https://drive.google.com/file/d/0B0DAqK ... sp=sharing

https://drive.google.com/file/d/0B0DAqK ... sp=sharing

https://drive.google.com/file/d/0B0DAqK ... sp=sharing

Thanks for your reply here are some photos of the bike and why im going to need to drop a new engine in or create a hybrid.

This is a link i thought may be the correct engine as you can tell i am brand new to this and hope to learn as i go http://www.ebay.co.uk/itm/1994-Honda-CB ... Swo4pYWoVJ

It's a cb-1 so that will fit


Sent from my iPhone using Tapatalk

Yeah that's the badger


Sent from my iPhone using Tapatalk

Thanks for your reply, so i should be looking for any form of nc29 engine? there are a few on ebay would either of these fit?

http://www.ebay.co.uk/itm/HONDA-CBR400- ... SwtfhYrtg2

http://www.ebay.co.uk/itm/HONDA-CBR400- ... SwJ4hY-Nee

thanks alot for all your help in advance.

sorry didnt see you edited last post so the CB1 engine in previous post not these.

Bowman174 wrote:Hi, as you can guess i am new to the site so be gentle haha, i have recently purchased a cbr400 1990 model which requires a replacement engine. The engine currently on the bike has the engine number NC23E-12 can anybody tell me which engine this is and and advise on where to find one would be much appreciated.

The engine you have is from an NC23 Tri-Arm, CBR400RRK (1989). The 1990 models were NC29s. I don't know specifically what other engines would fit, but if I were you I would be looking to replace like with like.

Ciao,

Your links don't seem to be working for me so can't help with identifying the engine but:

The CB-1 engine in this link http://www.ebay.co.uk/itm/1994-Honda-CB ... Swo4pYWoVJ
won't fit as the cylinder head is different and the top engine mounts are in a different place on the CB-1.

The NC23 might fit the frame but the inlet from the radiator is at the back of the cylinders and not the front like the NC29 which you have.

Your best bet is to try and get a NC29 (1990 onwards) engine as that is what should be in there and therefore the easiest to fit - good luck, there's usually a few on ebay

Your best bet would be to post in the CB-1 section of the forum. They'll definitely know what fits and what can be made to fit. I'm sure the 29 and the cb-1 use the same engine but with different engine cases...


Sent from my iPhone using Tapatalk

FYI, NC29 engines start with NC23E-130000. I was assuming that your NC23E-12xxxx meant it was from the previous model (NC23 RRK), but, er, it isn't. I just checked the NC23 parts book and those engine numbers start 100000, 101500, 102000 and 109000, for RG, RH, RRJ and RRK, respectively. Sorry!

I don't know what engine yours is, possibly CB-1 as mentioned above.

Ciao,