charging system

yamaha4201

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i have a new battery and had it tested and is fine. after riding for awhile it wont start, the battery is not getting recharged. it can only be either stator or voltage reg. does anyone no how to test to see if voltage reg. is good or not?
please help
 
The test for the voltage regulator is to eliminate other causes. The Regulators haven't had a history of problems but the stators have so start with testing that.


RSchargesystem.jpg

statortest.png
 
do i test the stator plug with motor running?
thanks for your help im going cazy
 
Read the VOLTAGE at the battery jumper terminals with it running. You should get approximately 14 volts. If you don't then measure the stator coil RESISTANCE. With the motor not running disconnect the stator plug and probe the proper wires as shown.
 


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