2004–2005 Kymco Grand Dink 250 Service & Repair Manual OEM

• Covers 2004–2005 Kymco Grand Dink 250 water-cooled 4-stroke maxi scooters equipped with the 249 cc OHC engine.
• Original OEM publication from Kwang Yang Motor Co., Ltd., Overseas Service Section.
• Details the baseline specifications and schematics necessary for any planned repair, internal component inspection, engine assembly, and transmission overhaul.
• Contains 8 exploded-view system diagrams, 27 detailed diagnostic flow charts, and 4 comprehensive torque specification tables.
• Covers the SH50DA build across 100 pages of factory-level documentation.

Component and System Documentation

This official OEM manual delivers the technical groundwork for diagnosing and maintaining the Kymco Grand Dink 250. It breaks down the vehicle system by system. You get comprehensive overviews starting with frame information and general engine specifications. Major chapters document the layout of the 249 cc engine, outlining the mechanical structures of the cylinder head, valves, piston assembly, and the automatic centrifugal clutch.

The publication maps out the lubrication system, cooling network, and complex electrical routing, featuring complete wiring diagrams for the 12V 10AH charging system. Chassis equipment is thoroughly detailed. It describes the structural arrangement of body frame covers, the steering handlebar, and the suspension geometry. To streamline your workflow in the shop, the final reduction drive and kick starter mechanisms are illustrated using exploded-view schematics. These clear visuals eliminate guesswork during complex component teardowns. Additionally, maintenance schedules define the exact factory intervals for engine oil, coolant, and drive belt replacement.

Technical Reference and Specification Data

Having precise data on hand is critical for daily shop operations. The specification tables consolidate essential reference metrics for the Grand Dink 250. For example, valve clearance for both intake and exhaust is documented at 0.1 mm. Fluid capacities are clearly tabulated: engine oil requires 1.1 liters at disassembly (0.9 liters for routine changes), while the total coolant system capacity is 1400±20 cc.

The text outlines cylinder head bolt torque values to ensure proper tension during assembly. You will also find that the final reduction gear oil capacity is listed at 200 cc at disassembly. Reference values for the oil pump and piston-to-cylinder clearances provide exact baselines for diagnostic comparison and descriptive repair planning. Proper shop safety protocols and standard protective gear should always be utilized when handling heavy components or engine fluids based on these reference parameters.