Question about 2002 Honda CRF 450 R

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My honda crf450 has no spark replaced coil and cdi, stato has lots of power, but no spark please help

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  • Derek Horton Mar 27, 2012

    same thing is wrong with my 2005

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Maybe a connector problem? Use an ohmn meter to check all the connectors/wires...try to disconnect kill switch as well to test for that malfuntion.

Posted on Jan 03, 2011

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Posted on Jan 02, 2017

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1 Answer

I have a CBR125R it has no spark. I changed the CDI, Stator, Pickup, Tilt Switch, but still nothing, please can you help


Hi, Wynand and the usual suspects are:
1. Fouled spark plugs.
2. Severely discharged or a damaged battery, should have 12.5 volts or better and be able to pass a load test if necessary.
3. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
4. Loose connection at ignition coil or plug between ignition sensor and CDI box.
5. Spark plug cables shorting or leaking, spark plug cable connections loose, check for spark leakage in the dark.
6. Faulty ignition coil, pick up coil, trigger coil or CDI box testing needs to be checked with an ohmmeter at 70 degrees Fahrenheit
7. Faulty safety switches clutch, kickstand, neutral, off/on etc.
8. Faulty ignition switch.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
CBR 125 laid down now won start CBR Forum Enthusiast forums for Honda CBR...
How to diagnose no spark situation on motorcycle
Honda CBR 125 Service Manual
http://www.partsfish.com/page/oem-parts-for-honda
Honda CBR125RW Owner Manual

Jan 20, 2017 | Honda CBR 125 R Motorcycles

1 Answer

I have a1984 vf1100s v65 sabre i was riding along and lost power the bike continued to run on like half power then died completely. the following morning it did restart. i put a house hold electrical...


Hi, Mrklave and the usual suspects are:
1. Fouled spark plugs.
2. Discharged battery, needs to be 12.5 volts or better and be able to pass a "LOAD" test, your battery may show 12.5 volts but has little or zero amps and must be replaced.
3. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
4. Loose connection at ignition coil or plug between ignition sensor and module.
5. Spark plug cables in bad condition, shorting, leaking, spark plug cable connections loose check for spark leakage in the dark.
6. Faulty ignition coil or CDI or electronic control module.
7. Faulty CKP, CMP, or BAS sensor.
8. Faulty ignition switch.
9. Tilt sensor needs a reset.
10. Security alarm failing to disarm needs reset
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
Magna 1984 V65 with no spark in all four spark plugs
Testing Honda Coils and CDI boxes
Honda VF1000F 1985 Shop Manual Page 2
http://www.partsfish.com/page/oem-parts-for-honda
http://www.cantonmg.com/stewsplace/ShopManualVF1100C.html
http://mybikemanuals.com/honda/honda-vf-owners-manuals

Apr 24, 2017 | 1984 Honda VF 1100 Sabre

1 Answer

Hi there I'm stuck I don't know how to check the


Sorry but they either work or they dont.
If yours isn't working, replace it.
But before you replce it consider checking the other components, because ign mods are exspensive.
it sounds like you've been already checking the other stuff. heres what i'd check if your bike came to my shop.
1. battery fully charged, and can take a load. (weak batteries = weak ign power)
i have a bike that won't fire at all with weak battery. Make sure battery is good.
2. check for spark at plugs, make sure plugs are good. Pull plugs and turn motor over.
rest plug next to head and turn over, do not touch the plug while turning over
or you can be shocked.look for spark.
if you have spark , then you ign mod is working.
if no spark, then check #3
3. power to coils. check the power going into coils,
if power but no spark, then coil is bad.
if no power. check #4
4. power to coils comes from a ignition system ( points/ cdi /ign. module)
there is a stator and a rotor. and a signal generator. on your motor
the signal generator wire sends a signal to the cdi, every time the rotor rotates.
the ignition system (ign.mod) sends power to coil.
so if no signal to the cdi, then signal generator is bad
if signal going into cdi but not sending the power to the coils then the cdi/ ign. mod is bad.

Hope that helps
Best Regards
Big Al

Jun 28, 2011 | 1995 Honda VT 600 C Shadow

1 Answer

I have a Honda XR200 1990, I have spark but it's a


Hi.
It's either your coil or CDI thats at fault.
Download yourself a copy of the service manual from the internet and measure the coil resistance values that are quoted in the manual.(how and where to measure is usually shown in all good manuals)
If these are correct then its most likely your CDI.
Your Honda dealership should be able to test this for you, but this may cost as much as a second hand CDI.
The CDI on the XR200 is the same as a lot of models eg. cb125, cd125 .
You will find quite a few on ebay , both new and second hand , make sure you get the same model as already in use (number should be on the CDI)
good luck

May 30, 2011 | 2002 Honda XR 200

2 Answers

Honda crf450 no spark atall plenty of power out of stator changed cdi nd had coil checked all ok tried dissconecting kill switch to.


maybe get a new spark plug.make sure your grounded(earthed). did you take the plug out and check for spark against the motor while you cranked the bike over?

Oct 17, 2010 | 2002 Honda CRF 450 R

2 Answers

Not gettig spark on honda cbr 600 1994


iF YOU ARE NOT GETTING A SPARK ON ANY CYLINDER THEN
1 CHECK FOR POWER TO COILS WITH A METER
IF NONE THEN SUSPECT :- THE IGNITION FUSE - VISUALLY CHECK THE WIRING - A BAD CONNECTION IN THE IGNITION CIRCUIT - THE KILL OR SIDESTAND OR CLUTCH SWITCH, OR EVEN THE IGNITION SWITCH.
2 IF THERE IS POWER THEN SUSPECT THE PICK-UP (PULSAR) COILS & WIRING FROM THERE TO THE CDI - & LASTLY BY A PROCESS OF ELIMINATION SUSPECT THE CDI (ITS GENERALLY IMPOSSIBLE TO CHECK THE CDI APART FROM VISUALLY & BY REPLACEMENT)

I HOPE THIS HELPS, IF SO PLEASE MARK AS USEFUL
RIDE-SAFE
BIKE-DOC

Jan 07, 2010 | 1994 Honda CBR 600 F(2)R

1 Answer

1987 Honda shadow vt1100c no spark at any plug


The voltage on the coils is present except at the instant of firing. The interruption of the voltage is what causes the coil to fire. The cdi box is what causes the voltage interruption.
The interruption is very hard to detect. You are not the first to be stymied by that box. If you have access to an oscilloscope, I think you can see the pulse if it occurs.

Jun 07, 2009 | 1989 Honda VT 1100 C Shadow

3 Answers

1986 gsxr 400.not sparking r starting


Hi and welcome to FixYa,

If somehow, the CDI could be opened up, then component level repair maybe tried. There would be 2 final transistors that actually do the switching; 1 for each coil. Offhand, it would appear that 1 of those 2 is faulty. Otherwise, replacement is the only option.

Incidentally, in some versions, a fault in the tachometer could also cause one of the CDI's output to fail.

Postback results of tests.

Good luck and thank you for using FixYa.

May 27, 2009 | 1996 Honda CBR 400 RR

1 Answer

My 2004 Honda Shadow will not start. I have changed the spark plugs, wires, ingnition coils and now I'm left with the CDI module. The bike turns over but no spark. Is there a way to test it before I buy a...


I would get a test light and check if i had power to my coil and to my cdi module .You more than likely lost powerto one of them .those cdi last for every. check your switch make sure you got power there to. Hope this help

Feb 21, 2009 | 1989 Honda VT 1100 C Shadow

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