2004 Official factory service manual for Yamaha YFZ450S ATV Quad., Page 66Get this manual
CABLE ROUTING Route the main switch lead under the frame and connect To thermo switch To main switch To radiator Route the rear brake light switch lead over the throttle cable Route the rear brake light switch lead and ignition coil lead over the cylinder head breather hose
To carburetor Fasten the wire harness with the holder on the shield under the fuel tank Route the headlight lead (left) over the frame and connectAfter connecting the lead to the headlight, place the headlight coupler behind the headlight toward the center of the vehicle When installing the left side cover, do not pinch the wire harness