ATV Owner's Manual Polaris Trail Boss 1988 1988 Polaris Trail Boss Manuals and guides for 1988 Polaris Trail Boss vehicles of all available modifications. Trail Boss 250 R/ES 1988 Polaris Trail Boss 250 R/ES Service Manual Language: English Pages: 468 Trail Boss 2x4 1988 Polaris Trail Boss 2x4 Service Manual Language: English Pages: 468 Trail Boss 4x4 1988 Polaris Trail Boss 4x4 Service Manual Language: English Pages: 468