87 250es no spark [Archive]

jjwest

05-03-2009, 05:51 PM

I am not getting any spark on this bike. My electric start will roll over and my neutral light is on. I have checked all the fuses and they are good. I am not getting any power sent to my ignition coil. Can anybody please give me some help? Does anybody know which wires to check for power coming into to CDI?

1985BigRed250ES

05-04-2009, 07:33 AM

pull the spark plug, and ground it against the engine cases and turn it over to make sure its not getting spark.

codemanlyons

05-04-2009, 11:06 AM

It is either cdi or pickup coil...the cdi is easier to do so i would try that first...but the pickup coil seem pretty prone to going out on these bikes..

jjwest

05-04-2009, 11:02 PM

Where is the pick up coil? Also I have pulled the plug and even checked with a new plug but no spark.

codemanlyons

05-06-2009, 01:43 AM

you have to pull the left side case off to get to the pickup coil.. same side as the stator...

http://www.bikebandit.com/houseofmotorcycles/honda-atv-atc250es-1987/o/m1904

Go to generator and its number 3 on the digram

jjwest

05-06-2009, 09:49 AM

Thanks a lot I am going to check that today.

petesatc

05-06-2009, 10:04 AM

check the ignition coil..... 90% of the time it's that...

codemanlyons

05-06-2009, 03:21 PM

check the ignition coil..... 90% of the time it's that...

He said he isent getting power to his ignition coil..

jjwest

05-07-2009, 08:09 PM

I pulled the side off the engine today to check the pick up coil and found all kinds of problems. There were little pieces of metal that look like teeth off a gear floating around between the flywheel and the stator. All of the gears that I can see look good so I am not sure where those teeth came from. Those pieces of metal were rubbing between the stator and flywheel causing damage to the stator and some wear marks on the flywheel. I ohmed out the pick up coil and it checks and I ohmed out my stater and it reads 123 ohms does anyone know if that is a normal reading?