Question about Honda XL 125 R Motorcycles

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1982 Honda XL 125, stripped down (no lights, signals, battery) No spark when kickstarting Bypassed the on/off switch already tried different plugs Any other suggestions before I rip the coil and CDI apart? Where should I start troubleshooting

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  • mmorris232 May 20, 2011

    Bike was like this when I bought it, no battery...
    Ran fine up until last week when it suddenly died with no spark.
    Bought a manual for it and going to examine the harness in detail

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Your XL125 ignition system is designed to run off of battery power. You can remove all the lights but need to leave the battery, regulator, rectifier, and appropriate wiring in place. It is not designed to run like an ATC 110 (no battery) or a 2 stroke where you can run a single wire to a kill switch and down to the coil to power the spark plug. Put the harness, the regulator,the rectifier,and the battery back in and you should be in business.

Posted on May 18, 2011

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2012 Honda CBR 125 RW has no spark


Hi, Edwyn and the usual suspects are:
1. Fouled spark plugs.
2. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a preliminary reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead acid batteries.
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 electronic control module.
7. Faulty pulse coil.
8. Faulty CKP, CMP, or BAS sensor.
9. Faulty ignition switch.
10. Tilt sensor needs a reset.
11. Security alarm failing to disarm needs reset
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
CBR 125 laid down now won start CBR Forum Enthusiast forums for Honda CBR...
http://www.fireblades.org/forums/honda-cbr-600/101244-no-start-no-spark-please-help.html
HONDA CBR125R CBR 125R BIKE WORKSHOP SERVICE REPAIR MANUAL Download...
http://www.partsfish.com/page/oem-parts-for-honda
Honda CBR125RW Owner Manual

Sep 11, 2017 | 2012 Honda CBR 250R

1 Answer

I bought an old 1982 honda XL 125s and it has been starting first kick every time..


Hi, Jeff nice novella and the usual suspects are:
1. Fouled spark plugs.
2. Severely discharged or a damaged battery, should have 12.5 volts or better and be able to pass a load test if necessary.
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 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.
Honda XL Troubleshooting Spark Issues
What to Do Check When Dirt Bike Won Start
Honda XL 125 V1 Shop Manual
http://www.partsfish.com/page/oem-parts-for-honda
http://mybikemanuals.com/honda/227

Mar 10, 2017 | 1985 Honda XL 125 R

1 Answer

Hi we have a 1976 Honda xl 125 can anyone help with the wiring? Trying to get spark, changed spark plug etc but wiring was all undone and we need to put it back together right for spark.


my 1976 honda125 cc xl wont start ive checked everything all the wires and spark plug and iget spark but no start what could it be?

Aug 19, 2011 | 1983 Honda XL 125 R

1 Answer

I have a 1982 Suzuki RM-125. I am having difficulty removing the cylinder head and cylinder, all bolts have been removed. It's just really stuck


Here's the easiest way:

Put the head bolts back on snug. Put the spark plug back in snug. Put the cylinder base nuts back on but leave them about 1/4" away from seat. Now give the kickstarter a swift hit down - you can do this by hand. Repeat until the cylinder pops up. Now, loosen the head nuts and repeat.

This is the easiest way to remove a cylinder.

Hope this helps.

Apr 29, 2011 | 2003 Suzuki RM 125

1 Answer

Lost spark on a 87 honda 125cc quad atv ,still have power to the rest of the bike. what would this be? i,ve already changed the coil, and it wasn't that.


Have you checked the resistance values for the genny, or it may just be something as simple as the kill switch, try bypassing it to eliminate it.

Hope this helps

Apr 23, 2010 | 1986 Honda XL 125 R

2 Answers

2 year old Jonway 125cc bike cuts out and kickstart fails


check first if spark plug working you can see spark light on it upon kickstart. then proceed with the gas carburetor if gas intake working and not stuck. if no power goes to spark plug trace the source. first the cdi then the ignition coil and the voltage regulator.

Apr 13, 2010 | 2006 Bajaj Wind 125

1 Answer

Honda xl 100 1982 wiring problem


As long as your battery has tested good, and it is fully charged, the next thing to look at is your electrical ground. Clean the battery terminals with some emory cloth and also shine up the ends of the battery wires that attach to the battery. Then trace the black and the red wiress to the other end and clean them with emory cloth. chances are that corrosion has made a connection poor resulting in subpar flow of electricity to your signals and horn. Once you have checked and cleaned the battery wires test and see how your signals and horn are working. If they are still weak then you need to open up the signals and the horn and clean up the connections there. get back and let me know how you make out. I know we can solve your problem.

May 27, 2009 | 1983 Honda XL 125 R

1 Answer

Honda xl 100 1982 wiring problem


i ould start by checking the main engine ground, its a real possibility for your problem and always a good idea, if that does not solve it then i would clean the contacts in the horn button and turn signal control. be careful when opening this as the parts are small and can easily fall out of place

Jan 04, 2009 | 1983 Honda XL 125 R

1 Answer

Changing the kick start shaft, for a 1982 honda XL500.


Hey count

You can get a complete manual from here I havnt downloaded it myself to check, but is a workshop manual. Follow the procedure on the manual :) I love tearing down and rebuilding engines :)



regards
robotek

Nov 20, 2008 | 1983 Honda XL 125 R

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