1989–2009 Yamaha Bravo 250 & Bravo 250 LT Snowmobile Service Manual (P/N 8BD-008101)

Equip your workshop with the exact specifications needed to maintain and service the 246 cc piston-valve engine. This 182-page PDF publication serves as the definitive reference for the 1989–2009 Yamaha Bravo 250 and Bravo 250 LT snowmobiles, including the BR250T, BR250TS, and BR250TJ variants.

• Original OEM publication P/N 8BD-008101
• Contains 17 exploded-view diagrams and 6 wiring schematic variations
• Extensive torque specification tables for chassis and engine components
• Covers Keihin BD32-28 carburetors, Autolube oil pumps, recoil starters, caliper brakes, and V-belt drives
• Details T.O.R.S., slide rail suspensions, leaf springs, and track drive sprockets

Engine and Chassis Documentation

When tearing down the 246 cc air-cooled engine, precise measurements are critical. The documentation outlines exact cylinder dimensions, piston-to-cylinder clearances, and crankshaft runout tolerances. You get the factory torque values necessary for securing cylinder head bolts, crankcase fasteners, and flywheel magneto installations properly. Keep in mind that working on these systems requires a solid mechanical background, and having a certified technician review your repairs is always a smart practice for safety.

To help you avoid expensive dealership labor rates, the manual provides step-by-step procedures for intricate tasks like overhauling the recoil starter, adjusting the Autolube pump stroke, and performing high-altitude carburetor tuning right at your workbench. Beyond the block, it dives into chassis and suspension setups. It covers track drive sprocket specs along with leaf spring maintenance data. Detailed cable routing diagrams, block diagrams, and job instruction charts help you accurately align the throttle, brake, and oil pump systems across all covered model years.

Electrical and Transmission Specifications

Electrical faults can waste hours of shop time. This manual cuts down diagnostic guesswork by providing comprehensive reference values for the 12V architecture, fully supported by clear circuit diagrams. It maps out ignition timing charts, pickup coil resistance measurements, and voltage regulator output ranges. You will also find step-by-step CDI unit testing procedures and troubleshooting flowcharts to isolate spark-related issues quickly and execute a reliable fix.

A notorious repair pitfall on these vintage Bravo sleds involves the Throttle Override System (T.O.R.S.). Mechanics often misdiagnose a no-spark condition as a failed CDI unit or stator, when the actual fault is frequently just a triggered or misaligned T.O.R.S. switch that completely kills the ignition. Another common trap is cracking the primary fixed sheave during teardown; avoiding this requires specialized 3-way puller tools, applying heat, and using exactly 200 Nm of torque with Loctite #640 during reassembly.

For the drivetrain, the transmission section breaks down the V-belt automatic drive. It lists engagement RPM thresholds, range-of-ratio, and spring-rate data for both the primary and secondary sheaves. Factory maintenance schedules and high-altitude tuning charts are fully outlined to help keep these sleds running at peak performance.