Szuki GN125 Igntion unit Circuit Diagram (CDI Unt)

Here is a basic wiring diagram for the CDI power circuit on a 2018 Honda Grom:

1. The CDI power wire is typically a red wire that runs from the ignition switch to the CDI unit.
2. The ignition switch is usually located on the right side of the handlebar and has three wires connected to it: a red wire, a black wire, and a white wire.
3. The red wire from the ignition switch connects to the red wire on the CDI unit.
4. The black wire from the ignition switch is typically a ground wire that connects to the frame of the motorcycle.
5. The white wire from the ignition switch is usually a power wire that supplies power to the headlight and other accessories.
6. The CDI unit converts the power from the ignition switch into a high-voltage spark that ignites the fuel in the engine.

Note: This is a general wiring diagram and the wire colors and connections may vary depending on the specific model and year of the Honda Grom. It is important to refer to the owner's manual or a detailed wiring diagram specific to your motorcycle for accurate information. Additionally, modifying the electrical system of your motorcycle may void the warranty and could cause damage or injury if done improperly

Hi ! for an informantion, please visit the website below. If you need more information about a specific electrical issue you can reach me at [email protected].
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try change your spark plug first in case it is not your cdi unit.

i have a polaris 400 sportsman had same problem i pulled black wire on cdi igntion box and it sparked i was told cdi box was bad if so check e bay caltric .theirs other boxes to black wire on them is to cut off switch.

did you check the primary coil? the ignition coil?if you think that these are all good,then you must replace the CDI.You cant test a CDI if this is good or not because it is a form of IC or integrated circuit,unless you have a manufacturer's diagram of it.You can check it by by detaching into its plug and get and replace an old CDI which you know is working,for example,get the CDI of the other motorcycle (if it has)the try to plug-in ,and if it fires,then thre you can surely know that the problem is on the CDI.

Check the valve adjustment. If a valve is standing open just a little, the compression will be too low to start the engine. Check fuel delivery by dribbling a little gasoline into the carb and try starting the bike. If it starts and runs for a second or two, you're not getting fuel into the cylinders. Check you carb again.

You can download the official Honda Owners manual for $5 dollars here http://www.tradebit.com/filedetail.php/6717283-honda-trx90-owners-manual-1999 It includes the wiring diagram