Wis. Admin. Code Trans 305.43
Lighting
Cite as Wis. Admin. Code Trans § 305.43
Lighting.
(1) Every motorcycle shall be equipped with all lighting devices required by ch. 347 , Stats. In addition, every motorcycle manufactured after January 1, 1972, shall be equipped with 2 amber direction signal lamps on the front and 2 direction signal lamps on the rear which may be red or amber.
(2) A motorcycle may be equipped with no more than 2 auxiliary lamps, including auxiliary lamps on a side car.
(3) Motorcycles and attached sidecars may be equipped with marker lamps provided that:
(a) No marker lamp exceeds a wattage of 10 watts.
(b) No marker lamp interferes with the visibility of a headlamp, tail lamp, stop lamp or direction signal.
(c) No lamp shows a color except red to the rear and amber to the front.
(4) All lighting devices shall be maintained in proper working condition and in conformity with ch. 347 , Stats. All wiring and connections shall be maintained in good condition and there shall be no cracked, broken or missing lenses or reflectors.