KAYO MOTOR K4 - User Manual

April BooneAug 7, 2025

Why is my KAYO MOTOR K4 Motorcycle exhaust producing black smoke?

A
Angelica CarrAug 7, 2025
If your KAYO MOTOR Motorcycle exhaust is producing black smoke, several factors could be the cause. It might be due to worn valve guides, which would require replacing them. Alternatively, a leaking or damaged oil baffle could be the culprit, necessitating repair or replacement. A leaking cylinder head gasket can also cause this issue, and replacing the gasket would be the solution. Finally, excessive piston ring clearance could be responsible, in which case adjusting or replacing the piston rings is advised.

harrisdustinAug 16, 2025

What to do if my KAYO MOTOR K4 Motorcycle has excessive noise?

D
Dr. Amanda GainesAug 16, 2025
If your KAYO MOTOR Motorcycle has excessive or abnormal noise, it could be due to several reasons. You may have incorrect valve adjustment, in which case you should adjust the valves correctly. Another reason may be that the valve is stuck or the valve spring is broken, in which case you should free the stuck valve or replace the broken valve spring. Also, the upper rocker arm may be excessively worn, in which case you should replace the excessively worn upper rocker arm. Inaccurate gas timing or camshaft wear may also be the cause, so you may need to set the gas timing accurately or replace the worn camshaft.

Angelica HuertaAug 27, 2025

How to fix low air pressure in KAYO MOTOR Motorcycle cylinder?

K
Kimberly SellersAug 27, 2025
Low air pressure in the cylinder of your KAYO MOTOR Motorcycle can stem from several issues. It may be due to incorrect valve clearance adjustment, in which case you should adjust the valve clearance correctly. Alternatively, the valve may not be tightly sealed, so ensure the valve seals tightly. Wrong gas timing, a broken valve spring, a spark plug not tightly connected to the cylinder head, or a damaged cylinder head gasket can also cause this. Correct the gas timing, replace the broken valve spring, reconnect the spark plug tightly, or replace the damaged cylinder head gasket, respectively. Cracks or blisters in the cylinder head or excessive piston ring clearance may be the cause, so repair or replace the cylinder head, or check, replace, or adjust the piston rings.

Brand	KAYO MOTOR
Model	K4
Category	Motorcycle
Language	English

Brand

KAYO MOTOR

Model

KAYO MOTOR K4 - User Manual

Table of Contents

Questions and Answers

Summary

Preface

Content

Symbols and Meanings of Special Words

Danger, Warning, and Attention Symbols

Suggestions for Daily Use

Operation Notes

Safety Precautions

Disassembly and Assembly Precautions

Vehicle Components and Location

K4 Specific Components and Locations

VIN Code and Engine Number

VIN Code Location

Engine Number Location

Vehicle Parameters

Engine Parameters

Frame, Shock, Brake, and Wheel System Parameters

Other Specifications

Important Fastener Specifications

Vehicle Control

Clutch Lever Inspection

Front Brake Lever Inspection

Throttle Knob Operation

Starting the Engine

Engine Flameout Switch

Fuel Tank Switch Operation

Shift Lever and Gear Check

Rear Disc Brake Inspection

Precautions Before Use

Advice for Beginners

The Running-In Process

Drive Guide

Pre-Ride Checks

Ignition Precautions

Starting Precautions

Turning Precautions

Acceleration Precautions

Suggested Inspection Schedule

Gear Shifting Precautions

Braking Precautions

Stopping and Parking Precautions

Suspension System

Rear Shock Low-Speed Compression Damping Adjustment

Rear Shock High-Speed Compression Damping Adjustment

Rear Wheel to Fender Distance Measurement (Suspension)

Rear Wheel to Fender Distance Measurement (No Load)

Rear Wheel to Fender Distance Measurement (Driving Condition)

Rear Shock Absorber Spring Preload Adjustment

Front Shock Absorber Setting Check

Front Shock Compression Damping Adjustment

Handlebar Adjustment

Disassembly and Inspection of Vehicle Parts

Vehicle Placement for Maintenance

Front Shock Absorber Guard Plate Disassembly;Installation

Front Disc Brake Disassembly;Installation

Front Shock Absorber Disassembly;Installation

Coupling Plate Disassembly;Installation

Head Steering Check

Steering Head Bearing Disassembly, Installation, and Lubrication

Front Fender Removal and Installation

Rear Shock Absorber Removal and Installation

Seat Cushion Removal and Installation

Air Filter Removal and Installation

Air Filter Cleaning and Maintenance

Exhaust Pipe Removal and Installation

Muffler Removal and Installation

Fuel Tank Removal and Installation

Chain Inspection and Cleaning

Chain Removal and Installation

Chain Tension Adjustment

Rear Sprocket, Engine Sprocket, and Chain Guide Inspection

Frame Inspection

Swing Arm Inspection

Throttle Cable Inspection

Handlebar Inspection

Brake System Check and Maintenance

Front Brake Lever Free Stroke Check