Question about 1992 Honda CB 250 Nighthawk
1992 Honda CB 250 no fire to spark plugs @
Change the fuse under the seat that is the start fuse do it and see how it's go
Posted on Feb 03, 2018
Hi, Alvinshere 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. Faulty run/off switch
11. Tilt sensor needs a reset.
12. 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.
1993 Nighthawk 250 has no spark
1995 Honda CB250 Nighthawk lost spark help
Honda CB250 Shop Manual
Honda CB250 Owner Manual
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Posted on Feb 02, 2018
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Posted on Jan 02, 2017
Hi, your plug number for an NGK plug is D8ESL As far as the plug socket size it is a 13/16 deep well socket. The gap should be set at .07-.08mm.
Posted on Aug 23, 2009
Replace the spark plug caps and try again. On Honda's the cap is often part of the wire (a dealer part) NGK makes some inexpensive plug caps about $5 each. They should OHM out to 5000 anything above or below and you need to replace them. This should fix the problem.
Posted on May 27, 2010
sounds like your coil is bad,could be few other things but coil is most common,and least expensive.if memory serves me right its mounted under tank( just follow plug wire to coil) will cost around $40.00 used and $80.00 new
Posted on Jun 09, 2010
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