1985-1986 Honda ATC250R Shop Manual, Page 225Get this manual
ELECTRICAL SYSTEM
COl UNIT
Remove the fuel tank (Page 3-3)Disconnect the CDI unit wire couplerRemove the CDI unit
CDI UNIT
BLACKWHITE BLACKYEL BLACKRED Measure the resistance between the terminalsReplace the CDI unit if the readings are not within the specifications in the table below
fully transistorized
I For accurate testing, it is necessary to use a
specified electric testerUse of an improper tester may give false readingUse Sanwa Electric Tester (073080020000) or Kowa Tester (TH-5H-1) or Kowa Digital Multi-Tester (074110020000 or KS-AHM-32-003: U.S.Aonly)