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PIAGGIO MSS X9 EVOLUTION 250 User Manual

PIAGGIO MSS X9 EVOLUTION 250
262 pages
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WORKSHOP MANUAL
618153
MSS X9 Evolution 250

Table of Contents

Questions and Answers:

PIAGGIO MSS X9 EVOLUTION 250 Specifications

General IconGeneral
BrandPIAGGIO
ModelMSS X9 EVOLUTION 250
CategoryScooter
LanguageEnglish

Summary

Characteristics

Rules

General safety rules for any maintenance operations performed on the vehicle.

Engine

Technical specifications of the engine, including type, displacement, and bore.

Brakes

Information on front and rear brake systems, including discs and calipers.

Walbro Carburettor

Specifications for the Walbro carburettor, including jets and settings.

Crankcase - crankshaft - connecting rod

Axial clearance measurements for crankshaft, connecting rod, and shafts.

Maintenance

Maintenance chart

Scheduled maintenance tasks and intervals for the vehicle.

Checking the spark advance

Steps to check and adjust the ignition spark advance using a stroboscopic lamp.

Engine oil

Procedures for checking and replacing the engine oil.

Checking the ignition timing

Method for checking ignition timing using reference marks and tools.

Checking the valve clearance

Procedure for checking and adjusting valve clearance using a thickness gauge.

Cooling system

Procedures for checking and maintaining the vehicle's cooling system.

Braking system

Steps for checking the brake fluid level in the front and rear systems.

Troubleshooting

Engine - Poor performance

Identifies possible causes and operations for engine poor performance.

Rear wheel spins at idle

Troubleshooting steps for rear wheel rotation issues when the engine is at idle.

Starting difficulties

Diagnoses and solutions for problems related to starting the engine.

Excessive oil consumption/Exhaust smoke

Identifies causes and solutions for excessive oil consumption and smoky exhaust.

Insufficient lubrication pressure

Addresses issues related to poor lubrication pressure and its causes.

Engine tends to cut-off at full throttle

Troubleshooting steps for the engine cutting off at full throttle.

Engine tends to cut-off at idle

Diagnoses and solutions for the engine cutting off at idle.

High fuel consumption

Lists reasons for high fuel consumption and corresponding actions.

Clutch grabbing or performing inadequately

Addresses irregular clutch performance and slippage issues.

Insufficient braking

Troubleshooting steps for insufficient braking system performance.

Battery

Information on battery maintenance, charging, and potential issues.

Steering and suspensions

Addresses issues related to steering controls and suspension system malfunctions.

Electrical System

Electric System Diagram

Visual representation of the vehicle's electrical system layout.

Ignition

Details on the vehicle's ignition system components and operation.

Headlights and automatic starter section

Information on headlights, automatic starter, and related circuits.

Battery recharge and starting

Procedures for battery charging and engine starting system.

Immobiliser

Checks and procedures related to the vehicle's immobiliser system.

Diagnostic codes

Interpretation of diagnostic codes indicated by LED flashes.

Ignition circuit

Details on the ignition circuit, including HV coil and spark plug function.

No spark plug

Troubleshooting steps when there is no spark at the spark plug.

Dashboard

Description of the instrument panel, including analogue and digital sections.

Engine from Vehicle

Removal of the engine from the vehicle

Step-by-step instructions for safely removing the engine from the vehicle.

Engine

Automatic transmission

Procedures for removing and inspecting the automatic transmission components.

Removing the driven pulley

Instructions for removing the driven pulley unit.

Inspecting the clutch drum

Procedures for checking the clutch bell's diameter and eccentricity.

Removing the clutch

Step-by-step guide for removing the clutch assembly.

Removing the driven half-pulley bearing

Steps to remove the driven half-pulley bearing.

Inspecting the driven fixed half-pulley

Inspection of the driven fixed half-pulley diameter and surfaces.

Inspecting the driven sliding half-pulley

Inspection of the driven sliding half-pulley dimensions and surfaces.

Refitting the clutch

Procedures for refitting the clutch assembly using specific tools.

Refitting the driven pulley

Final steps for refitting the driven pulley, including reassembling the clutch bell.

Drive-belt

Checks for drive belt damage and width, and wear inspection.

Removing the driving pulley

Instructions for removing the driving pulley using specific tools.

Inspecting the rollers case

Inspection of the rollers case, bushings, and guide shoes.

Refitting the driving pulley

Steps for refitting the driving pulley with steel shim and tightening the nut.

Refitting the transmission cover

Procedures for refitting the transmission cover and related components.

End gear

Removal and refitting of the end gear components.

Removing the hub bearings

Procedures for checking and removing hub bearings.

Removing the wheel axle bearings

Steps to remove wheel axle bearings using appropriate tools.

Removing the driven pulley shaft bearing

Procedures for removing the driven pulley shaft bearing and oil guard.

Cylinder assy. and timing system

Procedures for removing and refitting the intake manifold and rocker-arms cover.

Removing the timing system drive

Procedures for removing timing system components like chain and tensioner.

Removing the cam shaft

Instructions for removing the camshaft, pins, and rocker arms.

Removing the cylinder head

Steps for removing the cylinder head and gasket.

Removing the cylinder - piston assy.

Steps for removing the cylinder, piston, and related components.

Refitting the head and timing system components

Steps for refitting the cylinder head and timing system components with correct torques.

Splitting the crankcase halves

Procedures for splitting crankcase halves, checking clearances, and measuring components.

Refitting the crankcase halves

Steps for refitting crankcase halves, including internal bulkhead and oil filter fitting.

Adjusting the idle

Steps for adjusting engine idle speed and carburettor mixture using exhaust analysis.

Suspensions

Front fork

Steps for removing, overhauling, and refitting the front fork.

Braking System

Overhaul

Steps for overhauling the brake calliper, including piston and pad replacement.

Cooling System

Water pump - overhaul

Detailed steps for overhauling the water pump using special tools.

Chassis

Pre-delivery

Road test

Procedures for testing the vehicle after cold start, instrument operations, and throttle response.

Functional inspection

Comprehensive functional checks of braking, clutch, engine, and other systems.

Time

Carburettor

Estimated times for intake manifold, choke, and carburettor operations.

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