Hi my wife's trail boss is not charging. I took my battery out of My bike and tried it but no difference in voltage at rpm it just drops a bit over time
I do not have a manual ( does anyone know where to down load one) so I don't know how to trouble shoot
Thanks
Rob

 

You might check to see if a voltage regulator wire may have come loose.Item#20 on the breakdown.Polaris ATV Parts 2002 A02CA32AA-AB TRAIL BOSS ELECTRICAL-TAILLIGHT Diagram You can do a general resistance test on the alternator wires leading to the regulator to rule out a stator problem. There should be some small resistance between each yellow wire with no yellow shorting to ground. If this checks out and only shows battery voltage or less when running,probably a faulty regulator. If you still want a manual here's a cheap one.2002 Polaris Trail Boss 325 Service Manual PDF Download

 

Thank you very much I will try this where are the wires to check? Sorry I don't know much about this stuff hopefully the manual shows me
Robert

 

The yellow stator wires that plug into the regulator. Just disconnect them and check ohms resistance between each yellow stator wire and also to ground. Should show a small resistance amount such as yellow to yellow/red 0.22 ohms.

 

Thank you so much I will try this later and get back to you on here
Robert

 

It seems to read 000 or 001 between and 100 to ground maybe I am doing it wrong it was on the diode setting. On the 200 ohms setting, touching the leads together read 0.2. Testing between the yellow wires read 0.5, 0.5 and 0.7

 

Sounds like the stator is ok. Regulators were the most common thing to fail on the charging system.

 

How can I test it do you know? This is quite a learning experience. If it does turn out to be the regulator where do you think I should buy one? Sorry for drawing on your expertise so much. And thank you for taking the time

 

The 5 buck manual I linked to can save you a lot of frustration. Has good charging system checks and tests to remove any doubt as to what is needed.

 

Great I will get it then thank you for all the help
Robert