The Yamaha SV80 Snoscoot headlight bulb uses a 9003 size for both high and low beam functions. The replacement chart covers vehicle production spanning 1988 to 1990.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 9003 bulb is the sole bulb type listed across all headlight positions for the Yamaha SV80 Snoscoot, covering both high beam and low beam functions for the 1988-1990 model years.
The 9003 is a dual-filament halogen bulb, meaning a single bulb unit contains two separate filaments: one rated at 60 watts for high beam output and one rated at 55 watts for low beam output.
Because the 9003 serves both the high beam and low beam positions on this vehicle, the same physical bulb handles the full range of forward lighting through its two filaments rather than through separate bulb units.
The 9003 operates on a 12-volt electrical system, which is standard for small motorized vehicles of this type.
The 9003 uses a P43t base, a standardized bayonet-style mount that determines physical fitment into the headlight housing. Bulbs with a different base type are not compatible with this socket regardless of voltage or wattage ratings.
The 9003 designation follows the ANSI standard used in the United States and Canada. It is functionally equivalent to the European H4 bulb, though the two designations originate from different regional standards bodies and packaging may differ.