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Honda CBR 400RR NC23 1989 Hurricane restoration


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If you want to see where this story started and the build up to it go here https://www.themotorbikeforum.co.uk/viewtopic.php?f=3&t=72467#p1128101


Today i finally picked up this amazing 'barn find'.

 

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After following advice from [mention]Ian Frog[/mention] i took off all the fairings, petrol tank and air filter.


Ive bagged up all the bits and pieces, taken pics as ive gone, put screws and bolts back in where poss.


Ive no keys yet so cant empty the bit of fuel out of the tank but what has dripped out looks clear. This is where im up to.

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Edited by gymwitch
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[mention]oldgrump[/mention] just got bike on paddock stand (couldn't do it on my own. Apparently im a bird 🤷‍♀️) was getting ready to video whats happening with it and now its doing as it should. Cant move it in 1st gear at all, it gets slightly easier as you move up the gears but i couldnt move it at all. Andy did but it wasnt easy. Good news 😬

Edited by gymwitch
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Hi [mention]gymwitch[/mention] , that sounds a lot better!! And a lot cheaper :D , Have you tried unscrewing the screw's on side of float bowls to see if any fuel comes out? Mine fired up after 8 years under a sheet without stripping the carbs, and i just ran mine at first with a funnel stuffed in fuel pipe, or you could rig up a small fuel tank/container.

I did, after running mine up for a total of a couple hours, do the shims, and new plugs etc etc.

Also mine smoked a bit and it took about 100 miles of running before it stopped smoking on start up, so don't panic if it smokes, most bikes do when laid up long term.

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[mention]oldgrump[/mention] i will do that and get back to you. Im going to struggle without the keys though and getting them isnt looking hopeful anytime soon 😒

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Might be just as easy to see if you can get a secondhand lock set.

Especially if you can get same model/year then its just plug and play.

Cheers

Ian

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Might be just as easy to see if you can get a secondhand lock set.

Especially if you can get same model/year then its just plug and play.

Cheers

Ian

 

Thats probably the best thing to do under the circumstances. 🙂

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Hi [mention]gymwitch[/mention] , Or if you take seat catch lock out of Rear fairing the key number should be stamped on the side, here's a photo of mine and you can clearly see the number, last 3 on lock and that's the key number, also here's a website I sometime use.

Hope it helps :thumb: www.replacementkeys.co.uk/honda-a-d-series.html.

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That's if your locks are genuine :D

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Is this is the right wiring diagram for your bike? https://www.fireblades.org/threads/cbr400rr-wiring-diagrams-haynes.107112/

If it is you can turn the bike on by following the wire coming out of the back of the ignition. Follow it to the block connector where it joins the bike's loom. There should be three wires at the connector Red, Red/Black and Blue/Yellow. If you look at the ignition switch in the wiring diagram it shows that when the ignition is on the three wires join together. So if you join the three wires with some jumper wires into the back of the connector the electrics should turn on the same as if you had turned the key on. So at the connector jump Red to Red/Black and Red to Blue/Yellow and it should come on. The Red is 12V from the battery. The Red/Black goes to the fuse box. The Blue/Yellow goes to the fan motor. So when the ignition is on it switches 12V from the battery to the fuse box and fan motor. That is only correct if that is the correct wiring diagram for your bike

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Its afuckinoying !!! 😤

[mention]gymwitch[/mention] I must admit, after working on loads of bikes in my life, the NC23 has to rank as one of the worse, the bloody wiring loom gets in the way, and the frame just seems to narrow to pull them out :x

There is one other bike that is worse by miles!!!!! Yamaha XVZ13 Venture Royale!! Luckily not many made it to these shores!!!!

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Hair dryer worked a treat 😁 only taken 3 and a half hours. Now im reading up on getting the throttle cable off. Should have done that first 😳

Edited by gymwitch
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Wait while you try putting them back :shock: :shock: .

 

Agreed its generally harder to put stuff back together than the removal so @gymwitch I bid you luck

 

😭😭😭😭😭

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They are very dinky,

I’m sure if I sat on one, clenched my buttocks & straightened my legs they’d be no need for paddock stands 🤣🤣

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They are very dinky,

I’m sure if I sat on one, clenched my buttocks & straightened my legs they’d be no need for paddock stands 🤣🤣

 

🤣🤣🤣 now theres an offer. If you wouldn't mind i could use a paddock stand 🤣

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They are very dinky,

I’m sure if I sat on one, clenched my buttocks & straightened my legs they’d be no need for paddock stands 🤣🤣

 

🤣🤣🤣 now theres an offer. If you wouldn't mind i could use a paddock stand 🤣

 

If your in need of one, I have one I don't have use for

 

Thanks but bike actually came with front and back stands, i was just taking the rip 😁

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Took the choke mechanism off and the throttle cable. Undid the screws that clip the carbs to the block. These are fiddly and need opening up enough so that they spin.


Rocked the carbs with the rubber handle of a hammer and a large screw driver wrapped in a cloth. Used a hairdryer to warm up the rubber and 3 and a half hours later they popped off.


Numbered 4 tubs 1 to 4 to correspond to carbs so that anything ive taken off goes back onto the carb it came from.


Blocked the holes into block with paper towel so that nothing drops into the engine.


Could only get into carbs 1 and 4. The screws have been rounded off on the other 2 carbs (not by me ) . Hubs is going to sort those tomorrow.


Carbs 1 and 4 are spotless inside.

Would like to replace all the screws.....


Took plugs out. Plug 1 perfect. 2 a little darker. 3 was half and half and 4. Was black (ill post pics tomorrow of plugs.

Good productive day 🙂

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Edited by gymwitch
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Those screws round off very easily. I need to replace my ones at some point as I have had to do the hacksaw trick on them to remove.


[mention]Stu[/mention] Yes I know the answer is to buy a good set of jis screwdrivers!!


Edit: I replaced my brake fluid reservoir screws with torx head ones. I'm wondering if the same can be sourced for the carb :scratch:

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