Motorcycle Repair: no spark on yamaha, secondary windings, continuity tests

Question
I have a 1993 Yamaha xj600 seca II all of a sudden started sputtering and missing and now has no spark. I have worked on cars for years but don't know how different this troubleshooting may be.

I took out the spark plug and tested for spark. No spark. I know that there are 2 coil type spark dischargers near the forks. and there is a spark ignitor under the seat.

How do I isolate these components to see which one is the bad component?


Thanks,

Harold Bacos


Answer
Hi Harold,

Test ignition and pick-up coils the usual manner. Resistance and continuity tests of the primary and secondary windings, HT leads, and plug caps.

Check the CDI or ignitor by testing with a known good unit.

Isolate parts by removing each from the circuit and test.



Check for the service manual at the following weblinks:

XJ600 S (Diversion, SECA II) (1992-1999)), XJ600 N (1995-1999)

http://ursa.irk.ru/manual/files/Yamaha_XJ600_Service_Repair_Manual.zip

http://www.diff.ru/manual/files/Yamaha_XJ600_Service_Repair_Manual.zip

http://vitty.ru/files/xj600s.pdf



Respectfully,
Mark Shively