I would do an OHMS test on the coil. Most of the time the issue is one of these....
A. Your ground and coil mounts are dirty or rusty. Remove the coil and clean all the connections and mounts with sand paper.
B. The connection between the plug cap and the plug wire is loose or rusted or corroded. You can unscrew the plug cap off the wire and cut about 1/4" off the wire and then reinstall the plug cap.
If the primary side of the coil has a low OHMS reading it will not create the needed spark
Paw Paw
What is the issue?I checked all the readings from the stator to cdi and they are all in spec, now when i have the spark plug cap off the wire and put wire on the cylinder it makes a little spark. Tried many caps and many old and brand new plugs and no spark. Could it be the cdi or coil? 2001 yz 250 2t.
What is the issue?
What have you done recently?
Did it run recently?
Start from the beginning. -BIG DAN
EDIT: For general troubleshooting, CDIs and Coils are good 99.9% of the time, when the connections are good. I have only heard rumors of them failing, so I don't actually believe it happens.
How many times does it spark? Just once initially, or continuously weak?When i have no plug cap or plug in it the bare wires do spark.
Excellent.
How many times does it spark? Just once initially, or continuously weak?
The CDI on some models will allow a single weak spark in the kill position.
I am not worried about the 0.4 reading. it's very close and would still spark.
How about the kill switch? Should have continuity to ground in the kill position. Should be 'open' when set to Run.
I'm sure I'll think of something else.
-BIG DAN
For about $4 you can replace the plug cap. I would do that and see if it works first. All your specs sound reasonable.
Did you check fuel flow?
Compression?
Theres no problem with fuel flow or compression. The problem is there is no spark for the bike to start with
Ok cool.
Try the plug cap then.
Will do. I looked at stator just with the left side cover off and the stator looks kinda rusted but if i pull it off do i gotta worry about any wires or parts shooting off or anything?