2006 Yamaha XT 125 X fuse box location

SOURCE: how do youfind a serial number on a yamaha 125 dirt bike 2004

Should be stamped on the neck of your motorcycle or on the left hand side lower rail. Look on the neck, right side, under the dirt.

Where is the neck? It is the place where the front wheel assembly is fastened to the rest of the motorcycle.

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SOURCE: my horn has stopped working on my 2009 Yamaha

take a voltage meter on power wires for the horn with aligator clips and press the horn button to check for power. If not check fuse if it is good and you have no voltage probably be a short pinched wires but if you have power the horn has went bad