2004-2012 Honda CRF80F and CRF100F Factory Service Manual (P/N 61SB400)

• Official 254-page OEM publication (P/N 61SB400) detailing service parameters for the 2004–2012 Honda CRF80F and CRF100F motorcycles.
• Includes specific revision notes separating 2004–2007 from post-2007 production variants.
• Features 12 detailed wiring schematics and 17 comprehensive torque-value tables for accurate reassembly.
• Documents factory-specified maintenance schedules, adjustment parameters, and fluid capacities for both engine displacements.

Engine and Chassis Documentation

Getting the engine tolerances right is critical. This manual breaks down the complete disassembly, inspection, and rebuild data for the drivetrain. You get exact specifications for the cylinder head, piston, and crankshaft. It also covers oil pump rotor tolerances and clutch-linkage clearances. Rebuilding a top end? You will find the precise piston ring-to-ring groove clearance and connecting-rod radial play data required for a factory-spec build. Before applying these specifications or beginning heavy maintenance, always verify your workspace is well-ventilated and secure the motorcycle on a stable lift to prevent personal injury. Maintenance schedules are clearly segmented between the 80cc and 100cc models. This includes routine air cleaner servicing, valve clearance adjustments, and drive chain intervals.

Electrical and Fuel Specifications

Dialing in the carburetor requires precise data. The documentation outlines exact carburetor identification numbers and specific jetting requirements for high-altitude versus standard riding conditions. On the electrical side, it lists proper spark plug types for both cold climates and normal operation. You also get torque values for every major fastener. From engine hanger nuts down to the steering stem lock nuts, everything is laid out in structured, easy-to-read reference tables.