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Old 08-06-2011, 07:28 PM   #4381
larry31
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Quote:
Originally Posted by twcman306 View Post
Hey guys, I am new here and new to the dual sport world. I just bought a 88 NX 250 and have been having some problems. When I brought it home, the CDI immediately went bad. That was annoying....paid 270. Alright the bike is good to go hopefully right....wrong! I was at 7/11 and go out, hop on and try to start it. Turn the key and no power. Eventually get the idea to bump start it. Finally get home and look at the problem further. I put a meter on the battery, and it has plenty of power. When I turn the key on all voltage drops.... Now its not the generator because it runs with no power from the battery.

Now what could be causing this? Bad ground>???

thanks guys
You don't say just how much voltage you get while bike is running.

Sounds like a battery that's going bad. Just enough to run but not enough to pull higher cranking current.
Just to make sure, put a meter on it while bike is running ( about 1500 rpm or higher. ) Should be 13 - 14 volts with normal running loads.
If lower, like 12 volts or lower, than I'd check the alternator output or voltage regulator.

To check the battery for cranking power, put volt meter on battery and observe while cranking. Should not go much below 10 - 11 volts while cranking starter. Better if holds at 12 volts while cranking.
If 10 volts or lower, the CDI probably will not put out, even if you have a good one.

Also, it would be a good idea to disconnect the battery terminals and take a resistance reading from the Pos. battery lead ( not terminal ) to the bikes chassis. You should not have a short circuit reading.
Make sure all switches are in OFF position.

If you do get a low resistance reading, check for stuck light switches, shorts in wiring, bulb sockets shorted, etc.

Here's a link to the NX's ignition section in the shop manual. http://powers31.info/1988_NX250_Ign_Sys.pdf
May help you in trouble shooting.

larry31 screwed with this post 08-06-2011 at 07:35 PM
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Old 08-06-2011, 09:29 PM   #4382
RollingJ
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I was on a ride a few months ago and would lose spark intermittently. Sometimes I would have a headlight, sometimes I wouldn't. I pulled the tank plastics to get to all the connectors (my electrics are 'custom' to say the least) and couldn't find anything wrong. I was jiggling the wires to try to find the loose connector, and my positive terminal bolt was almost falling out.

Sometimes the simple things are the things that hurt the most.
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Old 08-07-2011, 07:17 AM   #4383
UCRONIANO
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Laugh Me file

Hello everyone, I am presented Jose, I live in Chile in a city called Quillota, I apologize for my English but I used google translate to make it easier to communicate, thanks!. I have read many pages of this forum looking for information on these beautiful machines, I am the happy owner of uan of these, it is a 250 cc ax1 1990 years, white with red and with 20000 millas.Bueno basically I would like to contribute with an occasional picture, but I also like to add some things I found out about this model and its engine, for example:

CLUTCH DISC ALTERNATIVES: AX-1
FZR250
KWO400
CB750
FZR400
R1
CB400
GN250
TTR250
CBR250
HARLEY DAVIDSON
XV250
CBR600
636
XJR400
CFR450
KLX450
ZX-9
ZZR400
ZXR250
GSX R1100

alternatives fork seals from ax1


HONDA NX 250 (MD21)
HONDA NX 250 (MD25)
HONDA VT 500 C (PC08)
HONDA VT 500 E KARDAN (PC11)
HONDA CX 500 E EURO (PC06)
HONDA CX 500 T TURBO (PC03)
HONDA FT 500 (PC07)
HONDA VF 500 F / FII (PC12)
HONDA XL 500 R (PD02)
HONDA CB 500 (PC26)
HONDA CB 500 / S / CUP (CB500S) [BJ.96-00]
HONDA CBR 600 F (PC19)
HONDA CBR 600 F (PC23)
HONDA CB 650 SC (RC08)
HONDA CX 650 E (RC12)
HONDA CX 650 T (RC16)
HONDA GL 650 D (RC10)
HONDA VF 750 C-C-E-D (RC09)
HONDA VF 750 S (RC07)
HONDA VFR 750 F (RC24)
HONDA VFR 750 F (RC24/88)
HONDA CB 900 FB (SC01/81)
HONDA CB 900 FZ / FA (SC01)
HONDA CB 1100 R / SC08 (SC05)
KAWASAKI EN 500 (EN500B1)
KAWASAKI GPZ 500 S (EX500E1)
SUZUKI GSX 750 ES / EF (GR72)


AX1 Oil Filter:
Honda XL250 XL600 XL350 NX250 CBX650 XR250


Rear Brake Pads DR-Z XLR XR AX-1 125 250/400/650 YZ250,XR250


Rear Brake Disc for Honda CR 125 250 500 R ENDURO AX-1
Suzuki DRZ 250 400 250 XR 250 CRM AX1 250 FRONT PADS



FRONT BRAKE DISC: HONDA AX1 50, 50 R 95-02 CRM, CRM 75 91-99, CR 125 R SM 92-94, 92-94 CRE 125R, CRM 125 R 98 -, XLR 125 R 98-00, SL 230 97-98, CR 250 R 92-94, 92-94 CRE 250 R, CRM 250 R 98 -, NX 250 L 87-93, XL 250 R 90 -, 88-91 XL 250 R LOW, XR 250 R 84 - 87, 88-96 XR 250 R, XR 250 R 97-03, CRE 260 95-98, 96-05 SUPERMOTARD XR 400 R, XR 440 R 96-03, CR 500 R 92-94, XR 500 84-85, XR 600 R 93-00, DAKAR XR 600 R 98-99, 00-08 XR 650 R, Disc front brake 240x118x3 mm, 4 holes 6.5 mm

REGULATOR RECTIFIER : KAWASAKI GPZ 400CC

FLASH LIGHT SWITCH : HONDA XLV TRANSALP

CHAIN SPROCKET: HONDA XR250,HONDA BAJA



R BRAKE DISC[/COLOR]:honda cr 125/250/ax1


And last but not least a data on the cdi cdi ... this works very well for the bike ax1, I have it installed on my bike and works well the model corresponds to the motorcycle cdi LONCIN LX200-3 (is also very economical )...... hope will some data, Greetings to all.: : El oído
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Old 08-07-2011, 07:27 AM   #4384
UCRONIANO
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Talking photos mi bike

some pictures of mi bike.... (LAGUNA DEL INCA,PORTILLO,CHILE)
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Old 08-07-2011, 09:36 AM   #4385
larry31
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Welcome

UCRONIANO

Welcome to you!

Looks like you have made quite a long list of substitutes. Could be quite useful to refer to.
I will put a link in my Favorites Folder.

Are those stock AX-1 wheels? I like them. What size wheels are they?
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Old 08-07-2011, 10:30 AM   #4386
UCRONIANO
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Hello

Hello Larry 31 and thanks ...

this is number of weels

Front:100/90/19
Rear:130/90/16
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Old 08-07-2011, 10:31 AM   #4387
UCRONIANO
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rear

rear weel
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Old 08-07-2011, 10:32 AM   #4388
UCRONIANO
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rack

homemade rack
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Old 08-07-2011, 10:33 AM   #4389
UCRONIANO
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rack2

rack 2
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Old 08-07-2011, 10:34 AM   #4390
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rack 3

rack 3
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Old 08-07-2011, 10:35 AM   #4391
UCRONIANO
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kms

kms
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Old 08-07-2011, 10:35 AM   #4392
UCRONIANO
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kms 2

kms2
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Old 08-07-2011, 10:37 AM   #4393
UCRONIANO
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skid plate left

skid plate original from the honda xl250 r 1985...aluminium
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Old 08-07-2011, 10:38 AM   #4394
UCRONIANO
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Laugh skid plate right

skid plate original from the honda xl250 r 1985...aluminium,thanks for watching.
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Old 08-08-2011, 11:04 AM   #4395
muddyrabbit
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Ahhh help!

Anybody have a front brake caliper? Jill's bike has the pin bolt for the pads totally frozen and stripped. Took me forever just to get the little threaded cap that protects the allen head of the actual bolt out, only to find that the bolt itself is phucked.
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