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Not James, but maybe I can help: Under the dash in the fuse/relay box is the ignition coil relay. This sends battery voltage on the black/white wire to all four coils. With key in on, all 4 coils should have power to them on this black/white wire. If no power, check fuse #2, a 15 amp fuse which sends power to the ignition coil relay, and on to the coils when the relay is energized by the ecu/pcm. Only thing else to cause spark is when the ecu/pcm sends a signal to the coil's Ignition Control Module (housed inside each coil assembly), which controls the primary circuit (the black/white wire), and causes high voltage to the spark plugs.
So check the black/white wire to the coils. If power there with key in on, check for spark at a spark plug when cranking the engine over. If power to coils but no spark, possibly a crankshaft position sensor or cam position sensor giving a bad signal to the ecu/pcm. Good luck.
The Computer sends signal to the coils which sends spark to the plugs. u need to check for a code with a ob2 reader since these parts can be very expensive. and very time consuming GL
The coil, injectors, and fuel pump get power from the ASD relay. If you have power to the coil but no spark from the coil, have you checked the pickup in the distributor ?
The pickup sends a signal to the engine computer and the computer fires the coil.
Well, did you check your CPS? (Crank position sensor), do you have power coming into the coils? With out the impulse from the CPS, to tell the ECU to send the power to the coils...It ain't gonna start.
The first thing a mechanic would check is for power and a ground signal for the coil. The pickup coil in the distributor sends a signal to ground the coil. The coil sends the spark to the distributor cap thru the rotor to the plug wires.
No fire at the plugs means no power to the coil/coils or the coil/coils are bad. You say it won't start, I'll take that it does crank over and won't fire. You have to have power from the switch to the coil, coil to distributor, and cranking sends fire to plugs. With a test light, check that there IS power from the switch and ongoing. This is a must do.
NO - SPARK
Check for spark at spark plug.
1. If no spark, test the wire to the coil with test light and see if you have power to coil.
2.If no power to coil, make sure your on/off button is on and working.Use test light.
A. Power at the switch but not at the coil indicates a broke wire from switch to coil.
B. NO power at the switch indicates ingintion switch is off or faulty and not sending power to your switch , make sure key is on. Use trest light.
3. If you have power to the coil but no spark from the coil - replace the coil
SPARK
Check for spark at the plug
1.If you have spark at the plug, but not starting - check that your carbs are getting gas.
2.Petcock Could be off, Fuel Filter could be clogged, Carbs could be dirty or clogged and your not getting any gas.
3.Pull spark plug - If no gas present then your not getting gas, if wet then you getting gas and your flooded. Make sure you have good gasoline, Bad gas won't burn.
or your bike is worn out and dont have any compression.
With Good gas, and Good Spark, and Good compresssion, the bike will run.
If your not getting gas to your motor through the carbs, pull carb off and thouroughly clean it.
Check the main fuse, it may have blown
Check that on/off switch hasn't shorted out, when you hit the start button you should be sending power to your solenoid which sends power to the starter motor.
If your stator/ rotor cover seal is bad, water may have got on the stator and corroded.
If it filled with water then its shorted out.
Start at the battery with a test light and work your way through your wires to see where you loose power.
For example: If you dont have spark, unplug your coil and see if you have power to the coil, if you do have power to the coil then the coil is bad.
If you dont have power to the coil, then the coil is probably good once you get power restored to it.
Trace the wire back to see where it looses power, it could be in the ignition switch.
turn on your ignition and check your coil make sure you getting power to it by using light tester contact with the coil post + and -. things that wont make your electronic Ignition Control Module fire, Camshaft Reference Mark Sensor if is bad, this sensor located next to the flywheel and its sense the rotation of the flywheel sending the single to computer and comp. send single to the coil to fire as your distributordisperse the sparks to each plugs. assuming if the ignition control module are good. hope that help some
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