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Louie, Technician
Category: Motorcycle
Satisfied Customers: 12677
Experience:  25+ yrs. experience
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Have a 1988 Polaris 250 and hooked battery backwards. Now I

Customer Question

have a 1988 Polaris 250 and hooked battery backwards. Now I have no spark. What did I damage and how can I check it? Thanks!
Submitted: 2 years ago.
Category: Motorcycle
Expert:  Louie replied 2 years ago.
Hi and welcome back to JustAnswer,

Thank you for the question and your patience. Should you still need assistance for information purposes only...

Initially, check or better yet, temporarily disconnect the CDI's black wire and try again. Also check the fuses and circuit breaker(s).
Still, possible suspects with the battery polarity reversal would be:
  • • stator and/or exciter coils & CDI (least likely);
  • • regulator (likely);
  • • rev limiter (most likely).

Please post back results / observations of the above once tried.