2009 Arctic Cat 150 ATV Service Manual, Page 77Get this manual
Problem: Magneto overcharges Condition 1Internal battery short circuited 2Regulatorrectifier defective 3Regulatorrectifier poorly grounded
1Replace battery 2Replace regulatorrectifier 3Cleantighten ground connection
Problem: Charging unstable Condition
1Lead wire intermittently shorting 2AC generator internally shorted 3Regulatorrectifier defective
1Replace lead wire 2Replace magneto 3Replace regulatorrectifier
Problem: Starter button not effective Condition
123456789Battery charge low Switch contacts defective Starter motor brushes not seating Starter relay defective Emergency stopignition switch off Wiring connections loosedisconnected Starter bushings worn Starter armature shortedopen Brake switch defective