2003 KYMCO 150 ATV NO SPARK

Question edited for clarity.
Question moved to model category.

no spark.

KymcoForum.com https://www.kymcoforum.com > ...
Jan 10, 2015 - Try un-plugging the rectifier, and see if you get spark. It may be shorting the stator to ground. Also try clipping the black, and yellow ...

Power to coil but no spark. What can it be?
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No Spark At Spark Plug - KYMCO MXU 150 Service Manual

ManualsLib https://www.manualslib.com > ... > Service manual
KYMCO MXU 150 Manual Online: No Spark At Spark Plug. Inspection/Adjustment ... Check ignition coil with. a CDI unit tester. 1-37. Symptom. Weak or no spark. Not ...

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KYMCO SERVICE MANUAL

ATV Scooter Parts https://atvscooterparts.com > atv > mxu150-m
Jun 8, 2005 - No power. Intermittent power. • Dead battery. • Loose battery cable ... LIGHTS/ SWITCHES. 17-6. ATV 150/125. MXU 150: INSPECTION. Disconnect the ...
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THE PLUGS SHOULD NOT NEED TO BE CHANGED. CLEAN THE EXTERIOR FIRST AND THE WIRES.

If you have spark at the right time, fuel, air.... you might try a spray of staring fluid. I would then check the compression. If it is too low it will not start.

check the pickup coil and the wiring for the shut off switches. if one rubs and grounds itself on the frame it wont spark.

can you tell me what year and make of atv sounds like you might have a timing problem were you do have spark but at the wrong time need more information to know for sure and also is it 2 stroke or 4 stroke

Could be your starter, solenoid, or even a fuel pump/clogged lines or filters

CHECK THE BOOT THAT GOES OVER THE SPARK PLUG IT MIGHT NOT BE TOUCHING THE WIRE.. ALWAYS TRY A NEW SPARK PLUG

check cable, spark plug, spark plug cap for good resistance levels. then check the coil. easy fix.

fyi, something to watch out for on those is bad crank seals. will allow a lot of air in and cause the engine self destruct. before the cdi try simpler things like coil and making sure all the wiring is right. good pickup coil.

sounds like a dead battery, if not than its probably the rectifire. if you need me to help i can.