NX250 Thread -- official ADV owners manual

Discussion in 'Thumpers' started by valvecrusher, Mar 17, 2008.

  1. valvecrusher

    valvecrusher tractus pro pensio™

    Joined:
    Feb 15, 2007
    Oddometer:
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    Location:
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    A place for NX250 or AX-1, or XL Degree owners to discuss or display anything related to the machine internally known as MD21 by Honda.
    (NX 250 AX-1)

    Terms of Service
    EULA

    [​IMG]
    [​IMG][​IMG]

    [​IMG].

    <table id="post13194675" class="tborder" width="100%" align="center" border="0" cellpadding="4" cellspacing="0"><tbody><tr></tr><tr valign="top"><td class="alt1" id="td_post_13194675">[​IMG][​IMG][​IMG] <!-- / message --> </td></tr><tr><td class="alt2">
    </td></tr></tbody></table>
    I hope this thread is a wonderful resource tool, helpful to all worldwide as we come here to gather...in camaraderie and respect..
    for members and motorcyclists worldwide.


    INDEX
    NX250 ADV owner's manual
    Terms of Service


    >>FAQs post<< Click here
    Flea Market FS/Wanted Ads < click here<click there="">
    </click>
    Mods:
    Not liable for accidents, or damages. What you choose to do to your NX, AX, or XLDegree is purely by your choice and judgement. We are not in any way responsible.

    Longer clutch cable for taller handlebars../longer fork tubes..
    80mm longer clutch cable
    Kawasaki OEM#: 54011-1164

    Air Filter mod, v.2 - Thx MuddyRabbit
    AF-modv2 link
    K&N air filter mod for NX250 --- thx WyoWillys46
    *K&NfilterMod*[​IMG]Oh oh. No more photos?:ddog

    16" NX rear wheel to 17" XL wheel swap
    17" XL wheel swap

    Rear shock replacement: SV650 shock: SV650 swap/upgrade
    starts with post #2407 and more info in 2410 thru 2424

    Upside down fork swap (CR80): CR80 Fork Swap
    post #2648-

    other 37mm forks for possible swaps:
    37mm fork list

    Performance camshafts(? availability ?) Megacycle Cams" -- thx Mito-nx

    Service Guide:

    Rubber well nuts
    link <------ http://www.desmoparts.com/products/parts-catalog/ktm/m5-wellnuts

    Service manual in PDF form for Nx250 --- thx WyoWillys46
    links to
    © copyrighted material is prohibited updated 1 march 2012


    Changing the NX250 clutch pack -- thx IBJim
    Clutch Change


    Restoring your rusty headpipe Header paint and restoration

    Stronger belly pan/ Metal Skid plate/ bash plate options Skid plate options


    Kickstand Mod: Kickstand Mod
    Keeps NX250 from falling over to the right

    New Stock size rims
    : different colors in different listings, hoop only
    link to ebay listing, silver, black, gold available.


    NX250 /AX1 XL250 Degree:TV & film stars:

    TV
    "Criminal Minds"...Episode: "Psychodrama" starts 20:33 link ~thx I&#9829;myNX
    "Mcgyver" starts 34:56..40:23 link ~thx RabidSquirell

    Film
    Class of 1999
    Jackass 3D










    _______________________________________________________________________

    Check back on this page often:deal

    Suggestions,:ear additions:clap , denials:cry, and rants:evil ARE encouraged
    welcomed, and invited, pertaining to content of INDEX
    Links and information for the INDEX can ALWAYS submitted to me via PM, I can add them into the post in the future here
    [​IMG]
    Click the picture of the NX250 above, to see a complete parts list, exploded diagrams, etc
    of the entire 1989 NX250...other years are available at the same link.
    This page is also referred to as partsfiche, exploded views, EPC, fiche, schematic, diagram, technical drawing or NX250 1989 USA spare parts list. Here you find all available NX250 1989 USA parts manuals.


    IF it's added to the thread, it'll be added to the INDEX

    for the NX250 - AX1 250 Dominator AX-1 XL250 Degree XL 250 NX NX250J NX250K NX250L XLDegree parts help info plastics cdi cowl fairing faring shroud seat fender wheel tire speed six Honda


    :ricky
    I urge all the NX and AX fans on this thread to TUNE IN!! to Sambucas' travels.
    [​IMG] HERE is the link

    (Use Google translate on foreign language pages)
    Sambucas has quite a story, and long journey
    [​IMG]
    [​IMG]
    Be safe guys!!

    Again, NX fans, HERE is the link
    [​IMG]

    .
    [​IMG]_____________________________________________________________________________________
    #1
  2. valvecrusher

    valvecrusher tractus pro pensio™

    Joined:
    Feb 15, 2007
    Oddometer:
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    NX250 ADV thread~QUICK LINKS
    where to get help and info fast

    *******(no links work, yet....just an example)********
    General.....Maintenance.. Body(general).....Lighting...Cooling...Engine(illustrated) ...Engine(performance)
    link..........Clutch change...link....................link...........link.... ......link..........................air filter
    link............pipe restore.....link....................link...........link.. ........link......................... air filter2
    link.............link................link......... ...........link...........link..........link...... ....................air filter 3
    link.............link................link......... ...........link...........link..........link...... .....................link
    link.............link................link......... ...........link...........link..........link...... .....................link

    Transmission/Drive.... Wheels/Tires.... Braking ...Skid Plate... Rear Rack..........Fork swap/Shock swap
    link..........................RollinJ's 17/21........link.........shovel..........RadBaron KLR6........link
    link..........................hondascoot17/21....link.........carbonfiber....link...........................link
    link..........................link................ ........link.........other............link...........................link
    link..........................link................ ........link.........link..............link....... ....................link

    How-To..(walk-thru)..... Feedback(product/trial.error)....Electrical(mods/upgrade).....Special Tools(illustrated)
    fix bodywork...................link........................... ...................link........................... ........clutch
    paintheader.....................link......................... .....................link......................... ..........link
    clutch change.................link............................. .................link............................. ......link
    link................................link.......... ....................................link.......... .........................link
    link................................link.......... ....................................link.......... .........................linkf you mind this photo being used, pm or email me, i'll remove it)


    [​IMG][​IMG]

    We'll have illustrations of changing the rear 16" wheel to a 17",
    how to do your valve adjustments...
    body modifications...seat coverings..skidplates, exhaust mods
    ADVenture rack function and implementation

    Miscellanous research and design -- R & D
    etc..
    BTW: if you've applied any of this photographic evidence to some other 'website' or whereever..would you please import it over here?...


    RULE #1:


    Creative criticism, or safety issues are always welcome, but please...
    no negativity....no flaming.....no ridicule..

    If you really, really hate it that bad..
    or think, "hey, that guy :jose or girl :toney is going to get hurt"

    plaster them in private( Use Private Message, or Email)....
    not here in the public eye..
    _________________________________________________

    seen it ruin perfectly good threads elsewhere...
    #2
  3. Jeff@TheQuadShop

    Jeff@TheQuadShop TAT survivor

    Joined:
    Nov 28, 2004
    Oddometer:
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    Location:
    Crestwood, Kentucky
    Give me a day or so VC and I'll start adding what I've learned. :evil
    #3
  4. Assfault

    Assfault Exposed Member

    Joined:
    Sep 1, 2007
    Oddometer:
    2,420
    Location:
    RockyMountains
    Been lurk'in in the shadows for a bit.
    Just came across a beat down 88 model
    on the cheap.Plan on using it as a commuter
    and fire road eater this season.
    A little here and there should sort out the
    niggles.
    A quick carb cleaning, fresh fuel, and air in the tires
    and I had a pretty good runner.
    More to come later as it is missing the front fairing
    and the instruments.
    This will give me the excuse to build a custom bike
    how I see fit.
    A blessing in desguise.
    Here's a pic as I got it.
    Assfault
    #4
  5. jamin_mathis

    jamin_mathis Long timer

    Joined:
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    2,519
    Location:
    L.A. CA. Echo Park y'all
    Good idea VC we NX riders need a place like this to find useful info with out all the other stuff.
    #5
  6. jamin_mathis

    jamin_mathis Long timer

    Joined:
    Oct 18, 2007
    Oddometer:
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    Location:
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    Getting that carb in and out was anything but quick for me, the whole time I was thinking "I must be doing something wrong this shouldn't be this hard to pull" I guess I was doing something wrong but after removing almost all the plastic, the tank, the air filter box and the seat about 3 hours later it was done and running great.
    #6
  7. Jeff@TheQuadShop

    Jeff@TheQuadShop TAT survivor

    Joined:
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    Location:
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    Here is what I've found for a better tire solution so far....

    I finally found another front tire that may work and be a bit more aggressive. Its the Mefo MFE99, its a 3.50-19 and the stock Trailwing is 3.8-19.
    [​IMG]

    The Dunlop K460 comes in the correct (close) size as well...
    [​IMG]

    Here is another option for the rear..
    Duro HF904
    [​IMG]
    #7
  8. Jeff@TheQuadShop

    Jeff@TheQuadShop TAT survivor

    Joined:
    Nov 28, 2004
    Oddometer:
    4,944
    Location:
    Crestwood, Kentucky
    I swapped out my 16" rear wheel for a 17" from a 87 XL250. This opens up a whole new world to rear tire options.
    I'll be going with the Kenda K270, this is a great long lasting tire that served me well on my TAT trip last year...

    [​IMG]
    #8
  9. wyowillys46

    wyowillys46 Hau Ruck!

    Joined:
    Oct 10, 2007
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    2,118
    Location:
    The Front Range somewere
    #9
  10. Jeff@TheQuadShop

    Jeff@TheQuadShop TAT survivor

    Joined:
    Nov 28, 2004
    Oddometer:
    4,944
    Location:
    Crestwood, Kentucky
    Welcome wyowillys46! Make sure you get some pics from your ride back home! :deal
    #10
  11. Assfault

    Assfault Exposed Member

    Joined:
    Sep 1, 2007
    Oddometer:
    2,420
    Location:
    RockyMountains
    Yea, there are certainly easier carbs to get in and out.
    But from my experiance the CRF 450 is way harder in my opinion.
    I do like the pumper feature for a late 80's bike is pretty nice.
    But when in the carb I tend to take my time so I don't have to
    tear into it again.Have fun with your NX.
    NX's RULE!

    Assfault
    #11
  12. Jeff@TheQuadShop

    Jeff@TheQuadShop TAT survivor

    Joined:
    Nov 28, 2004
    Oddometer:
    4,944
    Location:
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    Just for refrence, all these models use the same rear sprocket as the NX250. This may help in searcing for ones with a different tooth count.


    VTR250 Interceptor 1988L
    XL250R 1982-83
    XL250S 1978
    XL250S 1979-81
    XL500S 1979-81
    XL600R 1983-87
    XR250 1979-80
    XR250R 1981-82
    XR500 1979-80
    XR500R 1981-82
    #12
  13. valvecrusher

    valvecrusher tractus pro pensio™

    Joined:
    Feb 15, 2007
    Oddometer:
    1,764
    Location:
    Dos Circlos
    Items still needing identified or resolved:


    Chain slider - is there an aftermarket alternative?*'81 XR250R? not proven
    a flexible cutting board from Walmart has been successfully used in a pinch to protect swingarm, using RTV silicone gasket to affix the flexible cutting board(shaped like OEM slider) to swingarm.

    Front sprocket cross-reference -what other model will fit?
    rear sprocket: See Post #12, right above this post your are reading~thx Jeff@QuadShop

    regulators/rectifiers -- what other HOndas fit?

    If you can answer the above questions, please reply in the thread with your findings, and/or send me a PM so i can update and add it here, thanks!
    If you have any question you want added, please pm and it will be



    ***********************************************
    FAQs for the Honda NX250 AX-1 250 Dominator
    ***********************************************



    I need a longer clutch cable for high bar risers, wider handlebars, longer fork tubes, or taller handlebars?
    1984 Kawasaki GT550 (550GT)
    Kawasaki OEM#: 54011-1164 ~thank you Scrambler66+ArthDuro

    Can I use a different CDI than the factory Honda part?
    link CurtW found aftermarket CDI on Ebay link

    Are there any other footpegs that will fit my stock NX peg carrier?
    CRF50/XR50 pegs work without modifications~ArthDuro

    The headlight won't work, but the other lights are fine, and all the fuses are fine....etc... why? What is wrong with my headlight?

    There is a small spring in the 'start' button for the engine, built into the right hand control. This spring will get dirty, or become loose and break the circuit for the headlamp illumination.
    carefully, disassemble the right hand control, and clean the contacts and the spring.


    My NX250 keeps falling over, to the right side of the bike? wth?
    Kickstand Mod

    Is there a K&N style air filter option for the NX250?
    [​IMG]
    The OEM filter measures just under 4"x6" inches(add mm here VC!)

    K&N makes Part #MG-0001 for the MotoGuzzi V1000 Lemans/California models.
    It measures:Height: 1.22 in (31 mm)Outside Length: 5.984 in (152 mm)Outside Width: 4.449 in (113 mm)
    . Some work is required, mainly cutting and filing. Then an adhesive is used to glue the OEM rubber frame to the K&N filter's body.
    33-2263 is close, and is being experimented with.

    What size tire or tube should i get for my 19" front rim, or 16"/17" rear rim?
    here's a nice tube size chart, and a nice tire conversion chart thx-Rvn Ranger

    What's my battery?

    YTX7L-BS
    (same as Honda Rebel, Ninja 250) Ebay is a good source for inexpensive ones...
    Try Here or here or here
    For suggested starting prices, browse from there...
    Also, look for the newer Gel type batteries(add notes here VC!)
    Another option is to find a battery with the same physical size, but more 'plates' are in the battery.
    (Put example here VC!)

    My NX250 fell over to the right, i need a front brake lever? Anything cheaper than stock?

    Parts Unlimited has # 44-1001 Polished brake lever Honda for $5.95, also in black

    My bike needs fork boots! Who makes some?
    Daystar Fork boots Part# F00234
    There are others, the boots need to fit 37mm forks, with x amount of travel.

    Why won't my bike spark?
    Why doesn't it crank, or even hit a lick? Sometimes my bike misses, runs like crap and cuts off, then it won't start. My tachometer reads funny sometimes, or the tachometer doesn't move when the bike will turn over, but not start.

    Check your CDI. If it starts with KW3....its the old 80s CDI
    there was a factory issue with the CDI in the late 80s.
    They will all fail sometime. Replace with a known good cdi, before you look for other component failures.
    KW3H is the new part, updated sequence code....
    should be printed on the CDI plug area..

    There is a good video of a functional CDI p#22.
    Video of good CDI tach view here
    CDI discussion on abouts page #22 of this thread.


    My bike is hard to start when it's cold?( I use choke a mighty long time, or else the engine shuts off when it's cold. Also, it doesn't quite have the normal power i remember)

    It needs intake valves adjusted (do all 4, shim under buckets)
    Check here for the short list of symptoms.
    the carb's dirty

    Is there a carb rebuild kit?

    Keyster KH-0858N is the kit number.
    Try Googling the part number, "NX250 Carb rebuild kit", or looking on Ebay.
    This is just a suggestion/illustration...it's pricey! on that site.

    What parts fit my bike?
    The NX250 doesn't 'share' parts with very many US machines. Internationally, the NX250, AX1, XL250 Degree use the same engine, share frames(though some are square rails, and some are round frame rails)
    HERE is a list of nearly all parts for the NX 250....Thx RabidSquirrel

    My shifter is 'loose'. Can i get an aftermarket shifter? What model should i use to crossreference?
    The (84-85) XR200R, XR250R, (84-87)XL250R has the exact same shifter as the NX250.
    The (84-99) XL600R, and XR600R will also fit!, thanks Jeff!theQuadShop.
    A little bird told us the Yamaha TTR250 (99-06) will fit, but lengthwise?-VC

    Can I get those funny rubber 'wellnuts', they are like threaded rubber sleeves that hold my cowls to each other and to the bike?
    Here or
    link <------
    http://www.desmoparts.com/products/parts-catalog/ktm/m5-wellnuts

    What is a good tire for my bike?
    Did you read this page?:lol3 the one you are looking at to see these words? Tire discussion is on this page and the next few after this one.
    Also around post #850, it's revisited a bit.

    Where can i get the 17" rear wheel for swapping onto the NX250?
    84-87 XL250R, 85-86 XL350R

    Where can i get a cheap jack for my NX250? Something just to grease the chain, or check swingarm bearings and the like...maybe like a light duty lift/jack?

    try Here

    Where can i find the cheapest parts OEM online?
    www.servicehonda.com

    www.troy-racing.com
    www.motorcyclesuperstore.com

    www.bikebandit.com

    _________________________________________________________

    Promo materials section
    _________________________________________________________

    If you have a scanned sales brochure, owners manual, or historical "flashback" information relating to the NX250, send it to me...and I'll post it in this message.:deal
    [​IMG] [​IMG]
    click to enlarge


    An original sales receipt from your dealer would be smash out bangin'!!:freaky

    ~smell of mousehide~

    Other bikes that were made at the same time as the NX250/AX1 include:
    Pacific Coast(PC800), Gold Wing, Transalp, CB-1, Hawk GT, GB500, NX650, CBR, VTR, NX250, NX125, XR600R, XR250R CR500R, CR250R, CR125R, CR80R
    Show us the above showroom! OLD PIC that has all the above HONDA's..That would RULE!

    This bike was available as the NX250, the Ax-1, Baby dominator, 250 dominator and the like..some with minor differences.including OEM 239cc equipped
    Also offered as XL250 Degree, but not in the US.
    #13
  14. valvecrusher

    valvecrusher tractus pro pensio™

    Joined:
    Feb 15, 2007
    Oddometer:
    1,764
    Location:
    Dos Circlos
    The NEW NX250 AX-1 250 Dominator Flea Market...

    Here is where we will list who has what, who wants what...and what they want for...uhhh....what... :lol3
    Email me if you have something for sale, to sale in the NX market and i'll list it immediately
    [​IMG]


    FOR SALE:

    NX250

    NX250 16" rear wheel and brake - will remove the tire $20.00 Plus shipping~HondaScoot
    130/80-16 Duro in good shape and holding air $10.00 Plus shipping~HondaScoot
    Front hub and Rotor $10.00 Plus shipping Contact HondaScoot
    19" front wheel and rotor -will remove tire $20 + ship ~HondaScoot
    front fender, no cracks, some scratches $10 + ship HondaScoot


    1998 NX250 engine, complete, 9000 miles, valves not adjusted, no carb - 400 + UPS shipping ~ Contact PTC LINK
    complete 1988 NX250 bike. . tank,seat,plastics,speedo,tach assy., and more, etc
    carb, electrical-gone ~ Contact PTC LINK

    RollinJ's NX250 odds and ends LINK

    Complete radiator, fan, rad cap, VG,

    Gas tank, VG in primer.

    Gas cap, VG.

    WP cover, VG.

    <s>Gas petcock, VG</s> SOLD
    engine electric starter - bench tested ~good.

    Trades, offers? ----------- DonD

    rear Cargo Rack for NX250 (Make offer) -- Spaceman_spiff

    a headlight, spedo/tach brackets. -- Zeph4x

    stock OEM 16" rear wheel + brake hub -- Jeff@theQuadshop

    NX125
    rear wheel, sprocket, brake hub $50pm valvecrusher
    seat $50 pm valvecrusher
    FAIL gas tank (free with above) pm valvecrusher



    NX ITEMS WANTED


    Front brake master cylinder, complete unit - TheBohemian

    OEM rear plate -tag hanger -- pm Showallen

    19" front wheel, complete -- PM Fiep

    Rear fender bracket NX125
    -- PM SpringCreekRider

    NX 250 seat ~ PM Wolfy317

    Front Fender ~PM ClaytonRoy

    chain guide assembly on swingarm, headlamp, headlamp bezel ~ pm Kiesler



    AX-1 Items wanted

    AX1 speedo/headlight frame/bracket and all 4 AX1 turnsignals
    and ALL their related bracketry. ~ PM Micahshaw


    AX1/XL250~degree headpipe --stainless -- PM ValveCrusher

    AX-1 Cams - PM IheartmyNX

    NX Bikes wanted
    1988-1990 NX250(or frame only) with title,
    any condition -- PM
    ValveCrusher







    OTHER Motorcycles' Parts
    #14
  15. selah

    selah Crestone

    Joined:
    Dec 15, 2007
    Oddometer:
    63
    Hey Wyowillys46,

    Welcome. Used to live up there in Laramie. Lot of nice terrain to explore on your NX.
    #15
  16. wyowillys46

    wyowillys46 Hau Ruck!

    Joined:
    Oct 10, 2007
    Oddometer:
    2,118
    Location:
    The Front Range somewere
    Picked it up today.
    [​IMG]
    #16
  17. jamin_mathis

    jamin_mathis Long timer

    Joined:
    Oct 18, 2007
    Oddometer:
    2,519
    Location:
    L.A. CA. Echo Park y'all
    Thats a very clean looking NX:clap Good find! Too bad you miss the BBQ though.
    #17
  18. Jeff@TheQuadShop

    Jeff@TheQuadShop TAT survivor

    Joined:
    Nov 28, 2004
    Oddometer:
    4,944
    Location:
    Crestwood, Kentucky
    Wow, that one does look nice! But you should have waited for the fish!
    #18
  19. wyowillys46

    wyowillys46 Hau Ruck!

    Joined:
    Oct 10, 2007
    Oddometer:
    2,118
    Location:
    The Front Range somewere
    Well, it's not quite as nice as it looks. Some scrapes here and there, cracks on the rear fender by the brake light. I think it sat outside at some point, because some of the plastic has a lot of UV damage, and some of the metal has oxidized. But I didn't really want a garage queen.

    P.S. Valvecrusher, I realize now this should have gone in the other NX thread. Didn't mean to dilute the technical nature of this one with a bunch of gossip.
    #19
  20. Jeff@TheQuadShop

    Jeff@TheQuadShop TAT survivor

    Joined:
    Nov 28, 2004
    Oddometer:
    4,944
    Location:
    Crestwood, Kentucky
    Its cool, post here all you want.
    #20