What to do if my Sym Scooter engine is hard to start?
If your Sym Scooter's engine is hard to start or won't start, begin by checking if the fuel pipes from the fuel tank to the carburetor, as well as the intake vacuum, are clogged. Also, you can loosen the carburetor drain bolt to verify if gasoline is present inside the carburetor. If the spark plug is wet, remove it and inspect it. Finally, conduct a cylinder compression pressure test.
Why is my Sym RS-50 engine hard to start?
If your Sym Scooter engine is hard to start or won't start, a possible cause is no fuel in the fuel tank. Check if the pipes from the fuel tank to the carburetor and the intake vacuum are clogged.
General| Fuel System | Carburetor |
|---|---|
| Rear Brake | Drum |
| Front Tire | 120/70-12 |
| Rear Tire | 130/70-12 |
| Transmission | Automatic |
| Engine Cooling | Air-cooled |
Explains symbols and marks used in the manual for service warnings and indications.
Provides safety precautions for operating and servicing the scooter.
Outlines important precautions to follow during service procedures.
Lists technical specifications for the scooter.
Details recommended torque values for various fasteners.
Guides on proper routing of cables and wire harnesses.
Offers solutions for common engine problems and issues.
Illustrates key points for lubricating the scooter's components.
Provides basic information and specifications for maintenance.
Outlines routine maintenance tasks and intervals.
Details maintenance procedures for the air cleaner.
Covers inspection and replacement of fuel lines.
Explains how to check and replace the fuel filter.
Describes procedures for the engine oil line.
Details adjustment and maintenance of the oil pump control cable.
Covers tire inspection, pressure, and wear.
Information on battery inspection and maintenance.
Instructions for adjusting rear brake free play.
Maintenance of front disc brake system hoses.
Procedures for steering system maintenance.
Maintenance of the suspension system.
Procedures for transmission oil checks and replacement.
Information on spark plug inspection and replacement.
Guides on lubricating control cables.
Maintenance of the drive belt.
How to check and adjust ignition timing.
Procedures for checking throttle valve operation.
How to adjust carburetor idle speed.
Procedures for cleaning exhaust components.
How to perform a compression pressure test.
Instructions for adjusting headlight beam.
Illustrates the lubrication system components and flow.
Provides essential precautions for operating the lubrication system.
Specifies the type and quantity of lubricant to be used.
Offers solutions for common lubrication system problems.
Provides necessary information before engine removal.
Step-by-step guide for removing the engine.
Procedures for installing the engine.
General information regarding cylinder head, cylinder, and piston maintenance.
Solutions for common issues with cylinder, piston, and head.
Procedures for removing, inspecting, and installing the cylinder head.
Steps for removing, inspecting, and installing the cylinder and piston.
General information about the alternator.
Step-by-step guide for removing the alternator.
Procedures for installing the alternator.
General information for the belt drive and kick-starter systems.
Solutions for common problems in the belt drive and kick-starter.
Procedures for removing and disassembling the left crankcase cover.
Steps for reassembling the kick starter mechanism.
Guide for installing the left crankcase cover.
Maintenance and replacement of the drive belt.
Inspection and service of the movable driven pulley.
Procedures for clutch and driven pulley inspection and service.
General information for the final driving mechanism.
Solutions for problems with the final driving mechanism.
Steps to disassemble the final driving mechanism.
How to inspect the final driving mechanism.
Procedures for replacing bearings in the mechanism.
Steps to reassemble the final driving mechanism.
General information on crankcase and crankshaft maintenance.
Solutions for issues related to crankcase and crankshaft.
Procedures for disassembling the crankcase.
Steps for removing the crankshaft.
How to inspect the crankshaft for wear and damage.
Procedures for installing the crankcase.
General maintenance information for the fuel system.
Solutions for common fuel system problems.
Procedures for throttle valve inspection and adjustment.
Steps for removing the carburetor.
Inspection and maintenance of the auto by-starter.
Procedures for float, valve, and jet maintenance.
How to inspect the float fuel level.
Steps for installing the carburetor.
Maintenance of the reed valve.
Procedures for air cleaner maintenance.
Details of the front disc brake system.
Procedures for the rear drum brake system.
General information for brake system maintenance.
Solutions for common brake system issues.
Information on hydraulic disc brake systems.
Steps for bleeding the disc brake system.
Procedures for the disc brake caliper.
Inspection and maintenance of the brake disc.
Procedures for the disc brake master cylinder.
Information on the drum brake system.
Exploded view of scooter body covers.
General information and sequence for body cover maintenance.
Procedures for removing and installing the front cover.
Steps for removing and installing the handle cover.
Procedures for front fender removal and installation.
Steps for side cover removal and installation.
Procedures for rear carrier removal and installation.
Steps for luggage box removal and installation.
Procedures for center cover removal and installation.
Steps for main body cover removal and installation.
Procedures for side foot plate removal and installation.
Steps for floor panel removal and installation.
Procedures for front under spoiler removal and installation.
Steps for inner cover removal and installation.
Procedures for under cover removal and installation.
Steps for rear inner fender removal and installation.
Diagram of steering, front wheel, and shock absorber components.
Safety and handling precautions for these systems.
Solutions for common steering and suspension issues.
Procedures for steering handle removal and installation.
Steps for front wheel removal, inspection, and installation.
Procedures for front shock absorber removal and installation.
Steps for front fork and steering column service.
General information for rear wheel and suspension maintenance.
Solutions for rear wheel and suspension problems.
Procedures for rear wheel removal, inspection, and installation.
Steps for rear shock absorber removal and installation.
General maintenance for electrical components.
Solutions for electrical system issues.
Procedures for battery removal, installation, and charging.
Information on the charging system.
Details of the ignition system.
Procedures for the starting system.
Inspection and maintenance of the oil level switch.
Information on the fuel unit and gauge.
Inspection of various switches and the horn.
Procedures for replacing bulbs.
Procedures for removing and inspecting the meter assembly.
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