NX250 Thread -- official ADV owners manual

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

  1. Local Machine

    Local Machine Been here awhile

    Joined:
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    Globe Trotter
    I feel you ameego, I'd do the same thing myself.
    These keihins are super cool and all but there way too complicated to set them the right way.
    CV carbs are more easy to fix
  2. oldmanaz

    oldmanaz Adventurer

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    IMG_1537.JPG

    A member asked me to post a photo of the front mounting of the mmotoracks.com crashbars.

    Might be able to help with measurements and other questions. These provide some really good radiator protection.
  3. Bunce1260

    Bunce1260 Adventurer

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    So there's 2 bolts on each side there right? And it looks like those crashbars use 2 per side?
  4. oldmanaz

    oldmanaz Adventurer

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    Tucson, AZ
    IMG_1539.JPG
    IMG_1540.JPG

    In the process of rebuilding the front brake system. New stainless hoses to replace the 7/88 dated hoses on there currently.

    All new hose and fittings. They had to reuse the square fitting on the long line. And they properly indexed the fittings on the long line too.

    $94 total which includes the $12 return shipping. Turn around time was over a week, but I had sent him my spare brake hoses and was in no hurry.

    Brake Materials & Parts. Ft Wayne, IN.
  5. Spurlock

    Spurlock Long timer

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    Location:
    Vacaville, N. California
    My riding buddy and I headed down to the Sacramento River delta area today to ride some levee roads surrounding some of the many islands. Most all was paved, but very lumpy and rough in places so the NX's really worked well. On the way we took an almost deserted twisty road through a huge wind power farm.

    [​IMG]

    From there we rode along the rivers enjoying the scenery, lunch on an old riverboat, and a couple of ferry crossings. What cool bikes these are for knocking about.


    [​IMG]


    [​IMG]


    [​IMG]


    [​IMG]

    -Bill
  6. larry31

    larry31 Back Roads Explorer

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    New Hampshire
    Wanting to be more visible to distracted drivers, I mounted a cheap pair of LED's on my NX.

    Did a road test showing Both daytime, and nighttime results.

  7. Spurlock

    Spurlock Long timer

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    Good job Larry, and a nice clean installation. Any problem with blinding oncoming drivers?

    I use one of these blinking taillight bulbs to help get the attention of people behind me, really makes it obvious when you are slowing down:

    https://kisantech.com/mag/tailblazer/20w-d.html

    -Bill
  8. larry31

    larry31 Back Roads Explorer

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    New Hampshire
    Thanks
    I really don't know if it's enough to blind someone in daytime. I don't have anyone close, that can ride my bike, so I can see for myself. I'm going to have my wife get in her car, and make a pass on the highway to see if she thinks it's to bright. I adjusted them pointing down a little to minimize that.
    I would normally ride with it off, until I get in an area where there is a chance of turning traffic. ( Congested areas. )

    Which type flashing bulb did you get? Halogen, or LED? Do you have a video of it in operation? How does it compare with original bulb for brightness?
  9. Spurlock

    Spurlock Long timer

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    I got the halogen type, which comes with a spare replacement bulb. It seems equal brightness to the original. I don't have a video, but there is a GIF image of it on this page:
    https://kisantech.com/mag/tailblazer.html

    At $70 they are pricey, but if it keeps someone from "ass packing" me at a stop sign it's worth it. I like to activate it for tailgaters too.

    -Bill
  10. Bunce1260

    Bunce1260 Adventurer

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    Oddometer:
    56
    To free up some wattage for a couple of 18w LED driving lights, I'm looking to change as many of the constantly on bulbs to LED, but I can't find a list of all the bulbs for the NX250. Does anyone happen to have this handy?
  11. BentleyB

    BentleyB Adventurer

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    In all honesty the constantly on bulbs arent that large of a draw. theres something like 4 or 6 in the instrument cluster in addition to the taillight.
    I had replaced my tailight bulb with an LED, but found that the 2 stages, i.e. running and braking, weren't easily distinguishable, making it impossible to tell if I was braking. Just something to consider.
  12. larry31

    larry31 Back Roads Explorer

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    Maybe they have improved lately, but I tried some tail light LED types in my car several years ago. They were OK if viewed on strait on, but not as visible from off to the side.

    Instrument, and brake lights on a NX would only save you a couple of amps current draw.
    Directional's only draw half current while they are blinking. Tail light is only lit on low filament until you brake, then it only burns high filament while you are breaking.
  13. jellycow

    jellycow NXNXGS/6SXLFG/SXS/7NXGSNXGSNXNX

    Joined:
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    Oddometer:
    1,468
    Location:
    South side of the Netherlands
    So, I'm a good 200km further and the clutch seems not to have tightened up any more. At the current rate I'll do more km's in a month than the bike averaged a year in the past 27 years :-)

    Q: what makes the AX-1 getting 29hp? I know the cams are different, but how about exhaust or carb settings? @scrambler66 who's AX-1 had a flatslide carb, I can't find this to be OEM. Any other differences enginewise?
  14. cwc

    cwc .

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    upload_2017-9-30_17-22-28.png
    From the manual. As mentioned you don't need to include the brake light and turn signals because they are on so little time.
    The alternator is nominally 200 watts I think so it should be OK.
  15. Bunce1260

    Bunce1260 Adventurer

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    I found that list, but it only gives V and W. Not the style or model of bulb so I can order online. Does anyone have that?

    A few amps should be enough for driving lights.

    I've looked at LED headlights, some have pretty good reviews and appear to use less W and are brighter. I'm also looking into installing one of those Vololights deceleration lights, which include an LED plate light. http://amzn.to/2yAASpr It flashes when decerlation is detected. So essentially I'd have 3 brake lights. It seems to be a good idea for safety.
  16. cwc

    cwc .

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    I would be careful about reducing the wattage of the headlight. the charging system runs WFO all the time and the regulator maintains the correct voltage by shunting unused current to ground. If you remove headlight watts the power isn't "saved", it is dissipated in the regulator. This is described here http://www.electrosport.com/technic...articles/how-motorcycle-charging-system-works in the first parts of the article. "Saving " power can lead to early regulator failure especially if you ride for a few hours at a time.

    Of course with your two 18W driving lights if you got a 18W headlight and left all of them on all of the time you would be nearly the same as stock.

    I agree with the value of a flashing brake light. For our bikes we really don't need one that detects deceleration because the brake light wiring is pretty accessible so you can save some money by buying one that works off the brake light circuit. This has the advantage of being able to warn tailgaters without actually braking hard.
  17. raptorluftwaffe

    raptorluftwaffe Adventurer

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    Solo night rally on country roads, west of Buenos Aires [​IMG]

    Enviado desde mi SM-T560 mediante Tapatalk
  18. Spurlock

    Spurlock Long timer

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    The taillight is a standard automotive 1157 bulb available anywhere. But several of the instrument bulbs seem to be unique to motorcycles so they would need to come from Honda to get the exact replacement. But there are probably stock bulbs that would be close enough to work, just not the exact wattage. There are basically three different bulbs in the speedo/tach, all are glass wedge base bulbs. The parts fiche lists four types, part numbers 1 thru 4 here. But it also seems to indicate that #1 and #4 are interchangeable. They are definitely the same size and wattage, but have different part numbers for some unknown reason.

    First, the turn indicators and neutral light specs in the parts fiche are 12V 3 watt T6.5. The "T" number on bulbs means "tubular" shape, and the 6.5 number means the number of eighths of an inch in the bulb diameter. So a T6.5 would be 6.5 eighths or 13/16" diameter. That is clearly wrong, since the actual bulb is only 7/32" (5.5mm) diameter i.e. T1.75. Here is what they look like. They are labelled "Toshiba A14V3W" which is a 14 volt 3 watt bulb. I could not find any generic bulbs with those exact specs.

    [​IMG]

    Going clockwise from the left turn indicator bulb, there are two speedometer bulbs similar to the above but only 1.7 watts. The parts fiche list them as 12V 1.7 watt, and indeed they are labelled 12V1.7W and are the same T1.75 diameter as the above.

    So continuing clockwise is the neutral light, then the high beam which the fiche lists as 12V 1.7W with its own part number but which appears the same as the 12V1.7W T1.75 speedo bulbs.

    Then in between the tach and speedo is a single bulb I assume to light the odometers. The parts fiche lists it as a 12V 1.7W HD. There is a second one of those to light the tach face. They are a T3-1/4 bulb (13/32" diameter or 10mm). My bike has #194 bulbs in those two spots which are a 14 volt 3.78 watt common automotive bulb widely available, shown below:

    [​IMG]

    So, there are a total of eight bulbs in three or four types inside the instruments. As far as I can find some generic bulbs are close but not exact, and the only source for the exact listed bulbs is Honda or possibly other motorcycle manufacturers. Confused yet? I've ordered all four listed bulbs for spares and will report back on what I find.

    LED substitutes for the tiny wedge base bulbs are available, but it's hard for me to know how to judge brightness and light patter without buying some and experimenting. And why bother when we're talking only tiny savings in power anyway? The alternator has plenty of excess power for modest additional lighting, electric gloves etc.

    -Bill
  19. RJH02

    RJH02 Adventurer

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    Location:
    Charlottesville Va
    Where do the black mushroom shaped bushings go? I cant remember if it was part of the headlight or the side panels. Thanks
  20. Spurlock

    Spurlock Long timer

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    Location:
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    There are eight well nuts used for connecting the side fairings to the bike and to the headlight cowl. Everywhere there is a 4mm hex socket shoulder bolt they thread into a rubber well nut, part #28 here:
    http://www.partzilla.com/parts/search/Honda/Motorcycle/1989/NX250+A/COWL/parts.html

    -Bill