2007 Daelim Besbi SC 125 Service Manual (P/N LIT-11616-22-60)

This factory service manual is specific to the 2009 Yamaha V-Star 950 platform identified as XVS95Y and XVS95CTY, including the corresponding C-designated California versions. Yamaha states that the manual was produced primarily for dealers and qualified mechanics; its repair depth, special-tool requirements, and meter-based diagnostics also make it suitable for experienced owners who already understand motorcycle repair practices and have the proper shop equipment.

• 2009 model coverage: XVS95Y 49B1/5S71 (U49), XVS95YC 49B2/5S72 (CAL), XVS95CTY 49C1/26S1 (U49), and XVS95CTYC 49C2/26S2 (CAL). This is a 2009-specific edition, not a 2009-2012 multi-year manual.
• Factory publication: A 392-page PDF of Yamaha Service Manual P/N LIT-11616-22-60, first edition, October 2008. The cover separately shows 5S7-28197-10.
• Engine and drivetrain repair: Covers engine removal and installation, camshafts and rocker arms, cylinder heads, valves and guides, pistons and cylinders, generator and starter clutch, clutch and primary drive, crankcase, oil pump, crankshaft and connecting rods, and the constant-mesh five-speed transmission.
• Chassis procedures: Details wheel disassembly and static balancing, brake caliper and master-cylinder repair, hydraulic brake bleeding, fork overhaul, steering-head service, rear suspension and swingarm work, plus drive-belt and pulley removal, inspection, and installation.
• Maintenance, fuel, and emissions work: Includes valve-clearance adjustment, throttle-body synchronization, drive-belt adjustment, fuel-pump and injector checks, injector and fuel-pressure testing, throttle-position-sensor adjustment, and California canister and purge-system service.
• Electrical diagnosis: Provides system-specific circuit diagrams and fault-isolation charts for ignition, electric starting, charging, lighting, signaling, fuel injection, and the fuel pump, together with ECU self-diagnosis, fail-safe operation, diagnostic mode, component tests, and a full color-coded vehicle wiring diagram.
• Special-tool references: Lists both 90890-series and U.S./Canada tool numbers for belt tension measurement, fork seal installation, valve service, generator and clutch holding, fuel-pressure checks, and electrical testing. Examples include 90890-03170/YM-03170, 90890-01442/YM-01442, 90890-03176/YM-03176, and 90890-03174/YU-A1927.

Internal Repair Scope and Factory Reference Data

The air-cooled SOHC V-twin is covered well beyond routine tune-up work. Upper-engine procedures address front- and rear-cylinder cam timing, compression testing, valve-guide and valve-seat inspection, and piston-ring and piston-pin checks. Lower-engine repair extends through crankcase separation and assembly, oil-pump and relief-valve inspection, connecting-rod bearing selection, and transmission shaft, gear, shift-drum, and shift-fork service. Starter-motor repair is covered as well. Exploded assembly views and job charts establish part order, replacement items, lubrication points, and where special tools are required without turning the publication into a generic maintenance guide.

Reference material is organized into general, engine, chassis, and electrical specifications, followed by separate engine and chassis torque tables. The manual also supplies lubrication-point tables, an engine-oil lubrication chart and sectional flow diagrams, extensive cable and hose routing views, fluid and approved-lubricant data, component clearances, inspection limits, wear limits, and electrical test specifications.

Diagnostics, Diagrams, and Variant Details

Fuel-injection diagnosis extends from the ECU troubleshooting chart and diagnostic-mode setup to individual fault-code tables. These isolate faults in the crankshaft-position, intake-pressure, air-temperature, engine-temperature, throttle-position, lean-angle, speed, and oxygen sensors, as well as the injectors, ignition coils, supply voltage, and ECU/meter communication. The most useful visual references include the engine-oil lubrication chart, cable-routing views, ignition circuit diagram, starting circuit diagram, fuel-injection circuit diagram, and the full-vehicle wiring diagram. Separate CT procedures show removal of the windshield, sidebags, and backrest, while California-only pages identify the canister, rollover valve, and purge-hose routing.

Manual-Specific Repair Cautions

The camshaft section warns that turning the crankshaft during camshaft installation can cause damage or leave valve timing incorrect. The throttle-body cleaning section also cautions against caustic cleaner, direct solvent contact with plastic parts, sensors, or seals, and forcing the throttle valves, since mishandling can damage the assembly and create operating faults.

Fuel-pressure and injector work presents a fire hazard, brake repair affects a safety-critical hydraulic system, and some electrical tests use live circuits. Work in a properly ventilated area, control ignition sources, support the motorcycle securely, and isolate electrical power whenever Yamaha's specified procedure calls for it.