The Yamaha FJ1200 front turn signal requires a 1157 bulb size, while the rear turn signal uses a 1156 bulb size. The replacement chart covers vehicle production spanning 1986 to 1993.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Yamaha FJ1200 uses two distinct turn signal bulb types across its front and rear positions, with the 1157 fitted at the front and the 1156 fitted at the rear for all model years from 1986-1993.
The 1157 is a dual-filament bulb, meaning it carries two separate filaments within a single envelope, allowing it to serve both a higher-wattage function and a lower-wattage function simultaneously or independently.
The 1157 operates on a 12-volt circuit and draws 21 watts on its primary filament and 5 watts on its secondary filament, conforming to the ANSI standard recognized in the United States and Canada.
The 1157 uses a BAY15d bayonet base, which is an offset dual-contact base. The offset pin arrangement prevents the bulb from being seated in an incorrect rotational position.
The 1156 is a single-filament bulb rated at 12 volts and 21 watts, also conforming to the ANSI standard recognized in the United States and Canada.
The 1156 uses a BA15s bayonet base, which is a single-contact base with symmetrical pins. This base type differs structurally from the BAY15d used on the 1157.
Because the 1157 and 1156 share the same 15mm bayonet collar width, the physical housing size is similar, but their base contact configurations are not interchangeable. The 1157 cannot be substituted into a 1156 socket, and vice versa, without modification.
The front turn signal position on the FJ1200 requires the dual-filament 1157 across the full 1986-1993 production span, suggesting the front housing was designed to support a combined signaling and running light function.
The rear turn signal position on the FJ1200 requires the single-filament 1156 across the full 1986-1993 production span, indicating the rear housing was wired for a dedicated single-function signal circuit.