Friday, 22 August 2014

Yamaha YZF R125 blog electrical post

    buy a haynes workshop manual from here 




i will try to gather as much info on the YZF R125 electrical wiring systems as possible here in this post.

other posts of interest

Yamaha YZF R125 testing injector

Yamaha YZF R125 fuel injection system

Yamaha YZF R125 testing ignition coil

Yamaha YZF R125 radiator fan operation , resistance 

Yamaha YZF R125 engine management , fault codes 

Yamaha YZF R125 , Yamaha FI diagnostics Tool Scanner Machine

Yamaha YZF R125 testing the generator , alternator , stator rotor .

Yamaha YZF R125 Pick up coil testing

How to test motorcycle relays

Yamaha YZF R125 will not start no spark diagnostics



Testing the Charge of a battery

Test battery at the negative and positive terminals 



If you have a voltage meter you can do some basic tests.
When the engine has been off for at least 1-2 hours with ignition key turned off,
100% Charged 12.60 to 12.8v
75% Charged 12.4v
50% Charged 12.1v
25% Charged 11.9v
0% Charged less than 11.8v


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