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

Get one of these.. you will be glad you did..

Haynes Honda ATC70 90 110 185 and 200 Repair Manual 172 72 Scootercatalog...

Honda Atc 185 and 200 1980 1986 Service Repair Maintenance Clymer All...

You can't. You must verify all other components in ignition system. If they are all in spec. You know it's cdi.

See the attached link for more information, good luck !

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

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

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?

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

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.

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