Hi i have an 05 crf150f it wil not get spark at all i have replaced my coil,wiring harness but my stator is getting spark. i think it might be the rev box (cdi)please help me i am tired of fixing it over and over again thanks

all mc and cycles here have spark cut out for..
not in neutral ,
clutch not held in..
bar kill switch. tripped super easy that.
kick stand kill switch.
key switch bad.
(this is generic answer.)
ICM bad, or its crank sensor bad.
blown fuses.
bad wiring
buy the service manual and study spark there.
for sure what charges up the coil to make spark.
ICM is what it there most times; ign, control module

If your points are sparking as it is running, replace your condenser. I would do that first anyway. You can put any condenser in it., A condenser is a condenser. Make sure your new plugs, points and condenser are all operating correctly. You have probably already done all that but it is all I can think of.

you need to use multi meter to test resistance readings from the stator your owner manual or bike shop can tell you what readings are within spec for each source on the stator but from what your saying and the age of bike almost definitely would be stator related
stator would normally have 2 or 3 sources of power or alternatively called tappings of the one stator my guess is when you test it with meter (OHMS) readings you will find at least one of the source power being out of spec and pretty much if any of the tappings or sources are out of spec you will not get bike to start from kick over - you will have weak spark or no spark!
any bike shop should be able to test the resistances for you if you dont have multi meter

good luck regards Jamie

polaris factory stator (not starter, STATOR) are junk and are prone to failure. The coil can be checked by checking the resistance with an ohm meter. To check the stator, follow the wire harness coming out of the engine by the recoil rope. Follow them to where they connect to the CDI, coil, and rectifier (should be around the headlight area, under the plastic. Remove the pair of three wires in one connector (should be a green, a red, and a red/black). Check for ohms between each. If any show open, the stator is gone. To replace, you have to remove the recoil cover, flywheel, then the stator coil comes out with four screws.

Please check ignition coil, correct contact of keys and switches , and important to check for open or peeled wirings responsible for disconnected paths,

hello, you probably need to have your stator checked out, sometimes the pickup coil in the stator will go out, also you can try ign coil, the one spark plug wire is hooked to,warriors are bad about cdi going out, mine would idle, would not rev up, would bog down, source coil in stator probably needs to be checked also..

Hi and welcome to FixYa,

Initially, test for the presence / absence of below described voltages using an analog / needle type voltmeter when starting the bike:

• pulsating low AC voltage coming from the pickup coil;
• pulsating voltage feeding the ignition coil.

Good luck and thank you for asking FixYa.

hi mate anything coming from the stator plate is ok check kill switch is opening ok and closing it could be nroken good luck also think about replacing plug

Let me just ask, Does this machine have points? If so, The sonsor cand and will prevent high voltage failur.

the spark of the comes from the battery . there for the problem is in the coil.