NX250 Thread -- official ADV owners manual

elcaptainq · Jun 29, 2013

front right large plastic for sale. Blue. Side left as well ( the smaller one) OK condition. Pm with offer

aquajake · Jun 30, 2013

So, I recently purchased one of these bikes, and I love it already! I've been lurking on here for a while, and looking for one of these bikes. When one popped up on my local Craigslist, I jumped on it. After I bought it though, I noticed something as we were loading it into the truck. It appears to have a broken weld in the area indicated by the red line in the attached photo. (Hopefully you guys will be able to see where I'm talking about) It looks like an engine mount or something? Have any of you guys ever seen anything like this?

wiltouterrain · Jun 30, 2013

scrambler66 said: ↑

 Today is your lucky day, because we already solved that problem a couple of weeks ago in our German NX250 forum – and another one, which you are probably not even aware at this point:

Honda never sold sealing and bearing or the complete front cover separately, so you would have to buy a new starter engine. But don´t bother, it’s not available anymore.
The dimensions of the starter engine front cover (towards the starter gear) sealing and bearing are pretty exotic (13.5mm) and not easy to get:

Sealing BC1693F 13.5 X 24 X 6
Bearing HK 13.5 X 19 X 12

We finally found a source in Germany, but in other parts of the world you have to look for yourself ;-).
But there is another option: the Mitsuba starter engine is used in 99% of all motorcycles and ATVs, only the cover differ. So you can take a complete front cover from a TRX ATV, spare part number 31210-HC4-003.

The TRX cover has a one piece sealed bearing without a lock washer, so when used on a NX250 starter engine, you must eschew the lock washer.

As for the reason for the water-oil emulsion: if the o-ring (nr10) is leaky, the engine sucks in air, and the moisture of the air starts to accumulate in the starter gear and starter engine. The next thing that usually happens is that the bearing of the front cover starts to corrode and the starter engine will make a lot of unpleasant noise.
Click to expand...

my starter makes an hrrible noise!!
So des it come from the special Bearing HK 13.5 X 19 X 12?
I saw a 900 cbr starter for cheap,mistuba MT-23,does it fit directly? and no more noise?
the starter: http://www.leboncoin.fr/equipement_moto/398576836.htm?ca=12_s

mine,like a lifting:

wiltouterrain · Jun 30, 2013

but I still miss that:

Sparke · Jun 30, 2013

I have been backtracking through this thread but can not find the accurate info on what 17 inch wheel swaps correctly. Please inform me , thanks

aquajake · Jun 30, 2013

Sparke said: ↑

I have been backtracking through this thread but can not find the accurate info on what 17 inch wheel swaps correctly. Please inform me , thanks
Click to expand...

Try the first page of this thread, there's some links there. (I believe the info for the wheel swap starts on page 67)

valvecrusher · Jun 30, 2013

Sparke said: ↑

I have been backtracking through this thread but can not find the accurate info on what 17 inch wheel swaps correctly. Please inform me , thanks
Click to expand...

I am very sorry to not have properly indexed this growing thread by now.

have made several attempts, but nothing has been accomplished at this point.

I will complete a new (better) index as soon as reasonably possible, and it will be much easier and complete.

Again, my apologies for not already having this done.

The wheel you are looking for comes from the
1984-1987 XL250R honda, or
XL350R honda.

IamsaparoS · Jul 1, 2013

Hello friends.
you can look spare parts for the AX-1 MD21/MD26/MD31 and another here.
http://auctions.isibike.com/?catId=0&freeWord=AX-1+MD21

scrambler66 · Jul 1, 2013

wiltouterrain said: ↑

my starter makes an hrrible noise!!
So des it come from the special Bearing HK 13.5 X 19 X 12
Click to expand...

Most likely. It`s almost always the front bearing of the starter engine, in very few cases the bearings of the starter reduction gear corroded, resulting in similar noise.

wiltouterrain said: ↑

I saw a 900 cbr starter for cheap,mistuba MT-23,does it fit directly? and no more noise?
Click to expand...

Since my crystal ball is in repair I have no idea As said, the starter engines are the same but their front covers (back covers as well) are different and I do not know which other might fit.
Moreover, since that bearing is a weak point of those starters, most used ones are also defective, so even if that starter engine fit, it might continue screeching.

Here you can get sealing and bearing

http://www.al-electric.de/?aktion=nummernsuche&nummer=bc1693f&pid=3801
http://www.al-electric.de/?aktion=nummernsuche&nummer=HK13.5x19x12&pid=3303

valvecrusher · Jul 2, 2013

scrambler66 said: ↑

As said, the starter engines are the same but their front covers (back covers as well) are different and I do not know which other might fit.

Click to expand...

MANY starter motors are identical with different nose pieces(shaft and gear wheel) and different backs..
but the motor length/depth + diameter (body case) is the determinant iirc

For example take the Nighthawk 450 starter, switch the NX nosepiece and now viola'
NX starter...
(THAT was a FOR EXAMPLE, i'm NOT stating that the Nighthawk450 starter will exchange, but to give an example to what Scrambler66 was trying to say)

I will dig around and see if i can find the starter motor 'common bike' list..
I know i saw one somewhere

tntmo · Jul 2, 2013

I found a modified SV650 shock laying around from my old NX, if anyone is interested in it let me know. Cheap!

valvecrusher · Jul 3, 2013

valvecrusher said: ↑

MANY starter motors are identical with different nose pieces(shaft and gear wheel) and different backs..
but the motor length/depth + diameter (body case) is the determinant iirc

I will dig around and see if i can find the starter motor 'common bike' list..
I know i saw one somewhere
Click to expand...

After some thought, i seem to recall CustomerService(Sir Mobs) covering this early on IN THIS THREAD.

I'm sure it's in here, search this thread or his posts...

I knew this was covered...just took a little thought

wiltouterrain · Jul 3, 2013

Sparke said: ↑

I have been backtracking through this thread but can not find the accurate info on what 17 inch wheel swaps correctly. Please inform me , thanks
Click to expand...

too me,the best choice are kawasaki er5 wheels because front wheel has the disc on lthe left and rear wheel has drum brake.
On my bike,I put cb500 wheels (and fork,more slower and stiffer),that's such à probleme with front disc on the right,odometer doesnt work...

Ratchdaddy · Jul 4, 2013

tntmo said: ↑

I found a modified SV650 shock laying around from my old NX, if anyone is interested in it let me know. Cheap!
Click to expand...

I am interested. Just got my NX250 running again this morning.

petros600 · Jul 5, 2013

The instrument panel background lights are burned on my nx250. Any idea from where i can order them or did anyone convert them to LED's?

larry31 · Jul 5, 2013

petros600 said: ↑

The instrument panel background lights are burned on my nx250. Any idea from where i can order them or did anyone convert them to LED's?
Click to expand...

I got some LED's for mine. Not very bright, and they quit working in about a year. I went to my local Honda dealer, and bought new bulbs from them.
So far, they are still working.

If you do get LED's, check polarity on them, and the sockets. Some may be non polarized, but the ones I got were only good if put in one way.

CurtW · Jul 5, 2013

larry31 said: ↑

I got some LED's for mine. Not very bright, and they quit working in about a year. I went to my local Honda dealer, and bought new bulbs from them.
So far, they are still working.

If you do get LED's, check polarity on them, and the sockets. Some may be non polarized, but the ones I got were only good if put in one way.
Click to expand...

That's kinda the definition of a diode (the "D" in LED)

Jac Cambo · Jul 7, 2013

My NX has had a leaky expansion bottle for some time now - and I've repaired it but I think it's past further repair. It pisses coolant onto my leg and shoe when I drive it hard.

I was going to use a DRZ400 expansion tank I have in my shed, as it's a better design - but turned out to be too bulky to be fitted snugly anywhere.

There's a plastic bottle thing under the seat in front of the airbox that appears to have no function - does anybody know what it is supposed to be and if it could be modified to act as an expansion tank for my radiator?

arrcrussell · Jul 8, 2013

Hey guys, just picked up an '89 NX250 in pretty decent shape - of course it needs tires! Looking around the net I found Vee Rubber's dual sport VRM-163 in the proper rear tire size. Anyone have any comments/compliments/criticism about this tire? Thanks!

polarized · Jul 8, 2013

Jacl-Kampuchea said: ↑

My NX has had a leaky expansion bottle for some time now - and I've repaired it but I think it's past further repair. It pisses coolant onto my leg and shoe when I drive it hard.

I was going to use a DRZ400 expansion tank I have in my shed, as it's a better design - but turned out to be too bulky to be fitted snugly anywhere.

There's a plastic bottle thing under the seat in front of the airbox that appears to have no function - does anybody know what it is supposed to be and if it could be modified to act as an expansion tank for my radiator?
Click to expand...

I believe you are talking about the resonator for the air box.

I think it changes the sound of induction, not really sure though.

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