ATV Owner's Manual Polaris Trail Boss 1989 1989 Polaris Trail Boss Manuals and guides for 1989 Polaris Trail Boss vehicles of all available modifications. Trail Boss 1989 Polaris Trail Boss Service Manual Language: English Pages: 468 Trail Boss 2x4 1989 Polaris Trail Boss 2x4 Service Manual Language: English Pages: 468 Trail Boss 4x4 1989 Polaris Trail Boss 4x4 Service Manual Language: English Pages: 468