Cfmoto 675NK (2025+) - Workshop Repair Manual - Maintenance

CFMOTO 675NK (2025+) - SERVICE MANUAL - REPAIR MANUAL

- English Service Manual / Repair Manual for motorcycles Cfmoto 675NK from 2025.
- Edition Item: CF650-11 (6GUV-00WX01-11) SM -20250812


CONTENTS:

01 SAFETY INFORMATION
-1.1 About this Service Manual
-1.2 Danger Levels and Symbols
-1.3 General Precautions
-1.4 Repair Precautions

02 GENERAL INFORMATION
-2.1 Conversion Table
-2.2 Number Engrave Place
-2.3 Vehicle Specifications
-2.4 Service Specification
-2.5 Tighten Torque
-2.5.1 Tighten Torque Table for Vehicle
-2.5.2 Tighten Torque Table for Engine
-2.6 Fuel, Oil and Coolant Recommendation
-2.7 Service Offering Recommendation

03 MAINTENANCE INFORMATION
-3.1 Daily Maintenance Schedule
-3.2 Maintenance Schedule During Break-in Period
-3.3 Periodic Maintenance Schedule

04 CLUTCH AND TRANSMISSION
-4.1 Special Tool
-4.2 Clutch System Description
-4.3 How to Avoid Clutch Failure / Overheating and Diagnosis
-4.4 Clutch Removal
-4.5 Clutch-Inspection/Replacement
-4.6 Clutch Installation
-4.7 Transmission (Engine)
-4.7.1 Exploded View
-4.7.2 Transmission Overhaul
-4.7.2.1 Main Shaft Assembly
-4.7.2.2 Countershaft Assembly
-4.7.2.3 Gearshift Fork Shaft and Fork
-4.7.2.4 Shift Drum Assembly
-4.7.2.5 Gearshift Positioning Swing Arm Sub Assembly
-4.7.2.6 Gearshift Shaft Assembly
-4.7.3 Gearshift Lever Assembly
-4.7.3.1 Checking the Basic Position of Shift Lever
-4.7.3.2 Adjusting the Basic Position of Shift Lever
-4.7.3.3 Gearshift Lever Assembly Removal
-4.7.3.4 Gearshift Lever Assembly Installation
-4.8 Clutch Lever Clearance Inspection
-4.9 Clutch Cable Free Play Adjustment

05 ENGINE
-5.1 Engine Special Tool
-5.2 Engine Removal
-5.3 Engine Disassembly
-5.3.1 Engine Oil Drain
-5.3.2 Oil Cooler and Water Pipe Assembly Removal
-5.3.3 Oil Filter Removal
-5.3.4 Output Sprocket Assembly Removal
-5.3.5 Ignition Coil and Spark Plug Removal
-5.3.6 Cylinder Head Cover Removal
-5.3.7 Camshaft and Cylinder Head Removal
-5.3.8 Water Pump Assembly and LH Side Cover Removal
-5.3.9 Magneto Rotor and Starter Gear Removal
-5.3.10 Stater Motor Assembly Removal
-5.3.11 RH Side Cover Removal
-5.3.12 Timing Chain and Chain Plate Removal
-5.3.13 Clutch Removal
-5.3.14 Oil Pump Removal
-5.3.15 Oil Pan Removal
-5.3.16 Oil Pressure Switch Removal
-5.3.17 Lower Crankcase Removal
-5.3.18 Balance Shaft Assembly and Crankshaft Assembly Removal
-5.3.19 Shift Assembly Removal
-5.3.20 Piston and Connecting Rod Removal
-5.3.21 Cylinder Removal
-5.4 Engine Parts Inspection
-5.4.1 Crankshaft Main Plain Bearing and Balance Shaft Plain Bearing Radial Clearance Inspection
-5.4.2 Selecting Main Plain Bearing and Balance Shaft Plain Bearing
-5.4.3 Main Plain Bearing and Balance Shaft Plain Bearing Replacement
-5.4.4 Lower Crankcase Operation
-5.4.5 Upper Crankcase Operation
-5.4.6 Oil Pan Inspection
-5.4.7 LH Side Cover Operation
-5.4.8 RH Side Cover Operation
-5.4.9 Cylinder Head Cover Operation
-5.4.10 Cylinder Head Disassembly
-5.4.11 Cylinder Head Inspection
-5.4.12 Cylinder Head Installation
-5.4.13 Cylinder Body Inspection/Measurement
-5.4.14 Piston Inspection/Measurement
-5.4.15 Timing Assembly Inspection
-5.4.16 Crankshaft Assembly and Connecting Rod Assembly Inspection
-5.4.17 Oil Pump Inspection
-5.4.17.1 Oil Pump Cover/Oil Pressure Relief Valve
-5.4.18 Electric Starting Drive Inspection
-5.4.18.1 Overriding Clutch Assembly
-5.4.19 Oil Cooler and Water Pipe Inspection
-5.5 Engine Assembly
-5.5.1 Cylinder Installation
-5.5.2 Piston and Connecting Rod Installation
-5.5.3 Gearshift Assembly Installation
-5.5.4 Crankshaft Assembly and Balance Shaft Assembly Installation
-5.5.5 Lower Crankcase Installation
-5.5.6 Oil Pressure Switch Installation
-5.5.7 Oil Pan Installation
-5.5.8 Oil Pump Installation
-5.5.9 Clutch Installation
-5.5.10 Timing Chain and Chain Plate Installation
-5.5.11 RH Side Cover Installation
-5.5.12 Starter Motor Assembly Installation
-5.5.13 Magneto Rotor Installation
-5.5.14 LH Side Cover and Water Pump Assembly Installation
-5.5.15 Cylinder Head and Camshaft Installation
-5.5.16 Cylinder Head Cover Installation
-5.5.17 Spark Plug and Ignition Coil Installation
-5.5.18 Output Sprocket Assembly Installation
-5.5.19 Oil Filter Installation
-5.5.20 Oil Cooler and Water Pipe Assembly Installation
-5.5.21 Drain Bolt Installation and Oil Filling
-5.6 Engine Installation
-5.7 Engine Cooling System
-5.7.1 Water Pump Assembly
-5.7.1.1 Removal
-5.7.1.2 Inspection
-5.7.1.3 Installation
-5.7.2 Thermostat
-5.7.3 Oil Cooler
-5.8 Engine Lubrication System
-5.8.1 Lubricating Chart
-5.8.2 Engine Oil Level Inspection
-5.8.3 Engine Oil Replacement
-5.8.4 Engine Oil Pressure Inspection
-5.9 Air Intake System
-5.9.1 Air Filter Element Maintenance
-5.9.2 Air Filter Housing Assembly
-5.9.2.1 Removal
-5.9.2.2 Inspection
-5.9.2.3 Installation
-5.9.3 Throttle Body Assembly
-5.9.3.1 Throttle Body Assembly Removal
-5.9.3.2 Throttle Body Assembly Disassembly
-5.9.3.3 Throttle Body Assembly Inspection
-5.9.3.4 Throttle Body Assembly Assembly
-5.9.3.5 Throttle Body Assembly Installation
-5.10 Exhaust System
-5.10.1 Removal
-5.10.2 Inspection
-5.10.3 Installation

06 VEHICLE BODY AND FRAME
-6.1 Preparation Before Maintenance
-6.2 Seat
-6.3 Body Covering Parts
-6.3.1 Front Fender
-6.3.2 Front Fender Deco Plate
-6.3.3 Front Caliper LH&RH Ventilation Guard
-6.4 Dashboard Assembly
-6.5 Headlight Assembly
-6.5.1 Dashboard Lower Deco Guard
-6.5.2 Headlight
-6.5.3 Deflector Deco Guard
-6.5.4 Headlight Deco Guard
-6.6 Vehicle LH Rear Deco Plate
-6.7 Vehicle LH Panel
-6.7.1 Fuel Tank Front LH Deco Plate
-6.7.2 Radiator LH Inner Panel
-6.7.3 Radiator LH Deco Plate and Vehicle LH Wing
-6.8 Vehicle RH Panel
-6.8.1 Radiator RH Panel Assembly
-6.8.2 Fuel Tank Front RH Deco Plate
-6.8.3 Radiator RH Inner Panel
-6.8.4 Radiator RH Deco Plate and Vehicle RH Wing
-6.8.5 Fuel Tank Lock Assembly
-6.8.6 Fuel Tank Upper Deco Plate
-6.9 Middle Plastic Parts
-6.9.1 Engine LH Lower Guard
-6.9.2 Engine RH Lower Guard
-6.10 Front LH Footrest
-6.10.1 Rear LH Footrest Bracket
-6.10.2 Small Sprocket Guard
-6.10.3 Vehicle LH Middle Deco Plate
-6.11 Tail Plastic Parts Assembly
-6.11.1 Rear Fork Panel
-6.11.2 ECU Service Plate
-6.11.3 Seat LH Lower Panel
-6.11.4 Rear Tail Upper Deco Plate
-6.11.5 Battery Box
-6.11.6 Rear Fender
-6.11.7 Frame Base Plate

07 POWERTRAIN SYSTEM 
-7.1.1 Operation Notice
-7.1.2 Service Specification
-7.1.3 Tighten Torque
-7.2.1 Rear Wheel View
-7.3.1 Front Wheel Shaft Inspection
-7.3.2 Front Wheel Rim Inspection
-7.4.1 Chain
-7.4.2 Sprocket

08 BRAKE SYSTEM
-8.1 Brake System View
-8.2 Brake Noise Troubleshooting
-8.3 Brake Caliper
-8.3.1 Front Brake Caliper
-8.3.2 Rear Brake Caliper and Rear Wheel
-8.4 Brake Disc
-8.4.1 Front Brake Disc
-8.4.2 Rear Brake Disc
-8.5 Brake Fluid
-8.6 Handbrake Master Cylinder
-8.7 Rear Brake Master Cylinder
-8.8 ABS System Removal and Installation

09 SUSPENSION SYSTEM
-9.1 Front Shock Absorber
-9.2 Front LH Footrest Bracket Panel
-9.3 Front LH Footrest Bracket
-9.4 Rear Shock Absorber
-9.5 Rear Fork
-9.6 Rear Shock Absorber Inspection

10 STEERING SYSTEM
-10.1 Explosed View
-10.2 Upper&Lower Triple Clamp Assembly
-10.2.1 Upper Triple Clamp Assembly
-10.2.2 Front Fork and Lower Triple Clamp Assembly
-10.3 Throttle Grip
-10.4 Handlebar Service
-10.4.1 Handlebar Interference Inspection

11 COOLANT SYSTEM
-11.1 Coolant Specification
-11.2 Cooling System View
-11.3 Cooling System Assembly Removal
-11.4 Cooling Cycle Tightness Inspection
-11.5 Radiator and Water Pipe Inspection and Cleaning
-11.6 Fan Motor Inspection
-11.7 Coolant Inspection
-11.8 Coolant Addition
-11.9 Coolant Replacement

12 ELECTRICAL SYSTEM
-12.1 Service Tool
-12.1.1 Diagnostic Port
-12.2 Lights
-12.2.1 Lights View
-12.2.2 Headlight Inspection
-12.2.3 Tail Light Inspection
-12.2.4 Brake Light Inspection
-12.2.5 Turn Light Inspection
-12.3 Fuse and Relay
-12.3.1 Fuse and Relay Position
-12.4 Switch
-12.4.1 Switch Position
-12.4.2 Ignition Lock
-12.4.3 Front Brake Light Switch
-12.4.4 Clutch Switch
-12.4.5 Handlebar Switch
-12.4.5.1 LH/RH Handlebar Switch
-12.5 Handlebar Switch
-12.5.1 LH Handlebar Switch Assembly
-12.5.2 RH Handlebar Switch Upper&Lower Housing
-12.6 Charging System/Battery
-12.6.1 Charging System Position
-12.6.2 Regulator
-12.6.3 Charging Voltage Inspection
-12.6.4 Stator Path Inspection
-12.6.5 Stator GND Inspection
-12.6.6 Regulator Path Inspection
-12.6.7 Regulator Input Voltage Test
-12.6.8 Battery Leakage Inspection
-12.6.9 Battery Inspection
-12.7 Horn
-12.8 Starting System
-12.8.1 Starting System Position
-12.8.2 Starter Relay
-12.8.2.1 Starter Relay Path Inspection
-12.8.2.2 Starter Relay Operation Inspection
-12.8.3 Starting Switch
-12.8.3.1 Starting Switch Path Inspection
-12.8.4 Starter Motor
-12.8.4.1 Starter Motor Appearance Inspection
-12.8.4.2 Starter Motor Working Inspection
-12.9 Tipping Sensor
-12.9.1 Tipping Sensor Inspection
-12.10 T-BOX
-12.10.1 T-BOX Pin Function
-12.10.2 T-BOX Fault Code
-12.11 Dashboard
-12.11.1 Dashboard Pin Function
-12.12 Anti-lock Braking System (ABS)
-12.12.1 Anti-lock Braking System (ABS) Position
-12.12.2 ABS Diagram
-12.12.3 ABS Fault Code
-12.12.4 ABS Troubleshooting
-12.13 Front/Rear Wheel Speed Sensor
-12.13.1 Front Wheel Speed Sensor
-12.13.2 Rear Wheel Speed Sensor
-12.14 BCM
-12.14.1 BCM Pin Function

13 FUEL SYSTEM
-13.1 Fuel System
-13.1.1 Fuel System Location
-13.2 Fuel Tank
-13.3 Fuel Pump Assembly
-13.3.1 Fuel Pump Pressure Test
-13.3.2 Fuel Level Sensor Detection
-13.3.3 Fuel Pump Relay
-13.3.3.1 Fuel Pump Relay Operation Test
-13.4 ECU
-13.4.1 ECU Pin Function
-13.4.2 EFI Fault Code Table
-13.5 Oxygen Sensor
-13.6 Ignition Coil
-13.6.2.1 Ignition Coil Peak Voltage Inspection
-13.6.2.2 Ignition Coil Resistance Inspection
-13.7 Injector
-13.7.1 Injector Resistance Detection
-13.7.2 Injector Input Voltage Detection
-13.8 Throttle Body Assembly
-13.8.1 Idle Stepper Motor
-13.8.1.1 Idle Stepper Motor Troubleshooting
-13.8.2 Air Intake Pressure/Temperature Sensor
-13.8.2.1 Air Intake Pressure/Temperature Sensor Troubleshooting
-13.8.3 TPS
-13.8.3.1 TPS Troubleshooting
-13.9 Water Temperature Sensor
-13.10 Trigger
-13.10.3.1 Trigger Peak Voltage Inspection
-13.10.3.2 Trigger Resistance Inspection
-13.11 EVAP System Work Guide
-13.11.1 Two-way Valve Test
-13.11.2 Canister Test
-13.11.3 Canister Magnetic Valve Test
-13.12 Normal Troubles
-13.13 Trouble Diagnosis In Accordance With Engine Error