How to test spark plug on Sym Motorcycle if engine won't start?
If your Sym Motorcycle engine is hard to start, and you suspect weak or no sparks, remove the spark plug, install it into the spark plug cap, and perform a spark test against the engine ground.
General| Fuel System | Carburetor |
|---|---|
| Front Brake | Disc |
| Rear Brake | Drum |
| Front Suspension | Telescopic fork |
| Rear Suspension | Unit swing |
| Engine | Single-cylinder, 4-stroke |
| Transmission | CVT |
| Max Power | 12.5 HP @ 7500 rpm |
Outlines essential safety guidelines for operating and servicing the motorcycle.
Covers general safety and planned maintenance intervals for the motorcycle.
Outlines safety, specifications, and common fuel system issues and diagnosis.
Provides comprehensive procedures for diagnosing EFI system faults using tools and manual checks.
Outlines safety measures and the sequence for removing the motorcycle engine.
Covers the steps and checks required for reinstalling the engine onto the frame.
Step-by-step guide for removing and taking apart the cylinder head assembly.
Procedures for checking cylinder head warp, valve stems, and guides for wear.
Steps for putting the cylinder head back together and installing it onto the engine.
Instructions for measuring and setting the valve clearance using a feeler gauge.
Covers safety, specifications, and common issues related to cylinder and piston.
Details on removing the cylinder and inspecting its bore for wear or damage.
Explains piston removal, ring installation, and piston installation steps.
Steps for reinstalling the cylinder, including piston and ring placement.
Covers safety, specifications, and common problems affecting the V-belt drive.
Covers safety, specifications, and common issues related to the final drive.
Details on dismantling and checking the final drive gears, shafts, and bearings.
Steps for putting the final drive mechanism back together after servicing.
Provides a flowchart for diagnosing cooling system issues like overheating or leaks.
Provides common issues and solutions for disk and drum brake systems.
Lists common electrical issues and their causes, with diagnostic steps.
Provides the electrical schematic for the HD2 125 motorcycle model.
Provides the electrical schematic for the HD2 200 motorcycle model.
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