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Louie
Louie, Technician
Category: Motorcycle
Satisfied Customers: 12570
Experience:  25+ yrs. experience
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Got a Kawasaki Atv brute force 750 2005. Battery was not

Customer Question

Got a Kawasaki Atv brute force(###) ###-#### Battery was not charging. Had stator & reg replaced and it is still not maintaining the the charge
JA: Have you checked all the fuses? Do you have a wiring diagram?
Customer: Fuses are ok. That was the first thing I checked. Yes I have a wiring diagram
JA: Are you fixing your 750 yourself? What have you tried so far?
Customer: No I took it into a shop
JA: Anything else you want the mechanic to know before I connect you?
Customer: I replaced the battery a month a go
Submitted: 10 months ago.
Category: Motorcycle
Expert:  Louie replied 10 months ago.

Hi and welcome to the site, I’m Louie. Sorry you had to wait awhile but I’ll do my best to help.

Initially, proposed preliminary checks (if have not been tried):

  • • re-inspect the battery, its ground lines and/or re-check and re-clean the battery cables + terminals as well as stator's & regulator's connectors and wiring ;
  • • passive tests:
  • - check resistance of any/all 3 pairings of the stator coils to be nearly equal and on all 3 (0.29 ~ 0.43 Ω);
  • - but none should have any resistance to engine ground (OL or ∞);
  • • active tests:
  • - check voltage output of any/all 3 pairings of the stator coils to be nearly equal;
  • - at least 25V AC when idling and must rise proportionately with the RPM;
  • - 38 ~ 58V AC @ 3,000.

Additionally, check the rotor including for its magnetic strength.