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If all tune up items are good, you may have a weak coil, bad ignition module, failing fuel pump, etc. Run tests when failing, such as fuel pressure, spark check for nice fat blue spark, compression test. Are valves set correctly? Has engine got high miles?
Yellow spark could mean a weak coil or bad condenser. Try replacing condenser first and be sure points are clean and adjusted. If does not have points, is electronic, clean the flywheel at the magnet on the flywheel and set the air gap to specs between coil pickup and magnet.
Hi. It's either your coil or CDI thats at fault. Download yourself a copy of the service manual from the internet and measure the coil resistance values that are quoted in the manual.(how and where to measure is usually shown in all good manuals) If these are correct then its most likely your CDI. Your Honda dealership should be able to test this for you, but this may cost as much as a second hand CDI. The CDI on the XR200 is the same as a lot of models eg. cb125, cd125 . You will find quite a few on ebay , both new and second hand , make sure you get the same model as already in use (number should be on the CDI) good luck
Does engine still crank? If so you have to check for Fuel, spark, compression. when your engine quit ..odds are good you lost one of these. check for fuel since modern electric fuel pumps stop working without any warning.You should be able to hear the pump momentarily when you first turn the key to "ON" If good check for spark, modern "coil pack" spark systems have a few weak links. if engine cranks and you have spark and you don't know how to check for fuel spray some starting fluid in your air inlet and see if it will start momentarily
Coil is possible, change the plug (cheap insurance) and try it. If problem persists try this shortly after it quits. Ignition Coil Test by SmallEng.com http://www.youtube.com/watch?v=L7WNBDRG4C4 You may need to use a jumper wire between the threaded part of the plug and the cooling fins. You do not have to bend up the electrode.
An index or business card is good for gap tool. Remove the plug, rotate until magnetic attraction pulls coil and card tight to flywheel, then tighten coil screws. Rotate flywheel until magnetic attraction eases, remove card, rotate a couple of revolutions and ensure nothing drags or contacts flywheel.
Homies are bad for clogged fuel vents too. When it begins to sputter roll it onto side and loosen fuel cap. If ti smooths out and runs properly it has a clogged vent. HTH Lou
Hi, Kinwin and the usual suspects are:
1. Fouled spark plugs.
2. Discharged battery, needs to be 12.5 volts or better and be able to pass a "LOAD" test, your battery may show 12.5 volts but has little or zero amps and must be replaced.
3. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
4. Loose connection at ignition coil or plug between ignition sensor and module.
5. Spark plug cables in bad condition, shorting, leaking, spark plug cable connections loose check for spark leakage in the dark.
6. Faulty ignition coil or CDI or electronic control module.
7. Faulty CKP, CMP, or BAS sensor.
8. Faulty ignition switch.
9. Tilt sensor needs a reset.
10. Security alarm failing to disarm needs reset
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day. No Fire solved Thanks Everyone How to diagnose no spark situation on motorcycle Honda SHADOW VT1100 Owners Workshop Manual http://www.partsfish.com/page/oem-parts-for-honda Honda Shadow VT1100 Owner Manual
The first thing I would do is a compression test. You say you have spark, but have you actually tested the strength of the spark ? A simple check to see if the spark is strong enough is to take the spark plug, hook it up to the spark plug wire, hand hold the shell portion of the plug roughly a 1\2 inch away from the cylinder head, and crank the engine over. If the spark jumps this gap, you have good spark. If it doesn't jump this gap, your ignition coil or stator coils maybe weak and not producing enough voltage for a good spark.
You will have to pull a spark plug out to check that you have spark when cranking the engine,while you have the plug/s out do a compression test to determine health of engine and wether it is in fact giving compression,eliminates other potential faults if compression is good.If you have compression(around 140 ish)and introduced fuel and it wont fire up it only leaves electrics as the fault.3 major engine requirements to run Fuel,Compression,ignition.When checking spark at night is best as you can easily see wether you have the correct type of spark,Blue and if its quite you will hear the spark as well.Your fault is consistant with ignition module,coil or lack of power to ignition.Faulty modules will give a spark but its too weak to ignite fuel and the spark will be yellow in color.Let me know how it goes.Good luck