2007 ninja No start CDI issue

jjkozul123 · January 8th, 2022, 04:10 PM

Good Afternoon, I'm new to this forum so if in the wrong spot mods feel free to remove.

2007 Ex250F - Not starting -- Coils are not being powered up but are tested with multimeter, and within correct spec. Kill switch, and ignition switch are in proper working order, also tested with multimeter. Check fuses in junction box also using multimeter, and they also test good. Stator Pickup Coil also tested good. Battery is reading 12.6v-13v.

However, when testing the grey wire out of the pigtail (picture attached), it shows I am only getting 10.38V going to the CDI.

Has anyone else here on this forum had the same issue not getting 12v to the CDI?

Really frustrated with this -- any input would be appreciated, thank you!

https://i.postimg.cc/cJyhN2gF/IMG-2740.jpg

Triple Jim · January 8th, 2022, 05:03 PM

If that grey wire is the one from ignition switch, it has a 100 ohm resistor feeding it, hence the voltage drop. The TCI unit won't function without that resistor, as an anti-hotwiring feature.

Welcome to the forum, Brian!

DannoXYZ · January 10th, 2022, 11:20 AM

Quote:

Originally Posted by jjkozul123

Good Afternoon, I'm new to this forum so if in the wrong spot mods feel free to remove.

2007 Ex250F - Not starting -- Coils are not being powered up but are tested with multimeter, and within correct spec. Kill switch, and ignition switch are in proper working order, also tested with multimeter. Check fuses in junction box also using multimeter, and they also test good. Stator Pickup Coil also tested good. Battery is reading 12.6v-13v.

This is your problem. With key ON and kill-switch set to RUN, you should have full-battery voltage on both terminals of each coil. Trace power starting at battery, through ignition switch and fuse-box all way to coils and see where power disappears.

Quote:

Originally Posted by jjkozul123

However, when testing the grey wire out of the pigtail (picture attached), it shows I am only getting 10.38V going to the CDI.

Has anyone else here on this forum had the same issue not getting 12v to the CDI?

That is correct. Grey wire is anti-theft detection circuit and it should have lower power than battery. Operating power to igniter comes in on different wire.

Most likely your main issue is lack of power to coils. Track than down and fix so you have power to coils and bike should run properly.

CaliGrrl · January 10th, 2022, 09:05 PM

Welcome!

January 8th, 2022, 04:10 PM	#1
jjkozul123 ninjette.org newbie Name: Brian Location: Los Angeles Join Date: Jan 2022 Motorcycle(s): EX250F 2007 Posts: 3	2007 ninja No start CDI issue Good Afternoon, I'm new to this forum so if in the wrong spot mods feel free to remove. 2007 Ex250F - Not starting -- Coils are not being powered up but are tested with multimeter, and within correct spec. Kill switch, and ignition switch are in proper working order, also tested with multimeter. Check fuses in junction box also using multimeter, and they also test good. Stator Pickup Coil also tested good. Battery is reading 12.6v-13v. However, when testing the grey wire out of the pigtail (picture attached), it shows I am only getting 10.38V going to the CDI. Has anyone else here on this forum had the same issue not getting 12v to the CDI? Really frustrated with this -- any input would be appreciated, thank you! https://i.postimg.cc/cJyhN2gF/IMG-2740.jpg

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
How to get CDI issue resolved?	austexjg	2008 - 2012 Ninja 250R Tech Talk	31	February 25th, 2013 06:49 PM

January 8th, 2022, 05:03 PM	#2
Triple Jim Guy Who Enjoys Riding Name: Jim Location: North Carolina Join Date: Jul 2016 Motorcycle(s): Ninja 250 Posts: A lot. MOTM - Oct '18, Aug '17, Aug '16	If that grey wire is the one from ignition switch, it has a 100 ohm resistor feeding it, hence the voltage drop. The TCI unit won't function without that resistor, as an anti-hotwiring feature. Welcome to the forum, Brian!

January 10th, 2022, 09:05 PM	#4
CaliGrrl ninjette.org certified postwhore Name: Kerry Location: Ventura, CA Join Date: Jan 2016 Motorcycle(s): Ninja650 Posts: A lot. MOTM - Apr '18, Apr '17, Apr '16	Welcome!