Baotian BT50QT-9 Service Manual
  1. Manuals
  2. Brands
  3. Baotian Manuals
  4. Motorcycle
  5. BT50QT-9
  6. Service manual
Baotian BT50QT-9 Service Manual

Baotian BT50QT-9 Service Manual

Hide thumbs Also See for BT50QT-9:
Table of Contents

Advertisement

Quick Links

See also: User Manual
BT50QT-9&BT49QT-3
SERVICE MANUAL
JIANGMEN SINO-HONGKONG BAOTIAN MOTORCYCLE INDUSTRIAL CO., LTD

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the BT50QT-9 and is the answer not in the manual?

Questions and answers

Related Manuals for Baotian BT50QT-9

Summary of Contents for Baotian BT50QT-9

  • Page 1 BT50QT-9&BT49QT-3 SERVICE MANUAL JIANGMEN SINO-HONGKONG BAOTIAN MOTORCYCLE INDUSTRIAL CO., LTD...

  • Page 2: Table Of Contents

    CONTENTS CHAPTER ONE MAINTENANCE OF THE MOTORCYCLE Ⅰ. ITEMS OF MAINTENANCE Ⅱ. PERIODIC MAINTENANCE SCHEDULE AND MAINTENANCE LOCATIONS Ⅲ. MAINTENANCE SPECIFICATIONS Ⅳ. THROTTLE ACTUATION INSPECTION Ⅴ. AIR FILTER INSPECTION AND CLEANING Ⅵ. REAR BRAKE FRICITION LINING INSPECTION Ⅶ. BRAKE SYSTEM INSPECTION, ADJUSTMENT AND REPLACEMENT Ⅷ.

  • Page 3: Chapter One Maintenance Of The Motorcycle

    CHAPTER ONE MAINTENANCE OF THE MOTORCYCLE Ⅰ. ITEMS OF MAINTENANCE When the motorcycle is used, loosening of parts and mechanical wear inevitably occur to varied extents. Neglect of timely maintenance not only reduces its mechanical function, economic performance, stability and durability, but also threatens the safety of the motorcycle and the rider.

  • Page 4: Maintenance Schedule

    1. Maintenance Schedule Maintenance Schedule time Mileage 1000km item 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 New R Engine oil 300km Engine oil strainer Gasoline strainer New R Gear oil Note 4 300km Throttle play Carburetor Note 3, Air filter...
  • Page 5 2. Maintenance locations Spark plug Throttle grip Front shock absorber Oil tank £ ¨ £ © £ ¨ £ © £ ¨ £ © £ ¨ £ © damage,contamination actuation,play damage,loosening brake oil level Rear tire Rear rim Front rim Front tire £...

  • Page 6: Ⅲ. Maintenance Specifications

    Ⅲ. MAINTENANCE SPECIFICATIONS The basic methods of motorcycle maintenance include inspection, adjustment, tightening, lubrication, cleaning, supplementing and replacement, which constitute the main elements of maintenance. 1. Inspection Inspection refers to basic inspecting operations in accordance with items and requirements specified in the user’s manual, including inspection with instruments or with eyes for abnormalities in machine parts, directly comparing related data and aligning with tools and gauges.

  • Page 7: Ⅳ. Throttle Actuation Inspection

    THROTTLE ACTUATION INSPECTION free travel:2-6mm Inspect throttle grip for easy and smooth movement. Inspect throttle free travel. Free travel: 2-6mm The main adjusting position is beside the tightening nut adjusting nut carburetor. Remove rear store case cover. Adjust by loosening the fastening nut and turning the adjusting nut.

  • Page 8: Ⅴ. Air Filter Inspection And Cleaning

    Ⅴ. AIR FILTER INSPECTION AND CLEANING After a certain mileage, dust and impurities will gather in air filter case and strainer, which will clog strainer pores and reduce inlet of air and thus lead to excessive concentration of mixed gas and reduce the performance of engine. That’s why the strainer must be cleaned every 2000-3000km and in dusty or rainy conditions strainer must be cleaned or replaced earlier.

  • Page 9: Ⅶ. Brake System Inspection, Adjustment And Replacement

    VII. BRAKE SYSTEM INSPECTION, ADJUSTMENT AND REPLACEMENT 1. Front brake (disk brake) Remove the bolts linking brake caliper and front shock absorber; Remove brake caliper. brake caliper bolts front shock absorber * Do not pull brake lever when brake caliper is removed so as to prevent jamming of brake block.

  • Page 10: Ⅷ. Front And Rear Shock Absorber Inspection

    Brake Disc Inspection: Inspect brake disc thickness. Limit of use: 3.0mm Inspect brake disc angularity. Limit of use: 0.3mm 2. Rear Brake rear brake lever Inspect rear brake lever free travel. Free travel: 10-20mm Turn adjusting nut to effect adjustment when free travel exceeds limit.

  • Page 11: Ⅸ. Front Wheel And Rear Wheel Inspection

    2. Rear Shock Absorber Press rear shock absorber to inspect actuation. Inspect rear shock absorber to see if there is oil leakage and if there is damage or loosening in machine parts. Lift rear wheel, press rear wheel right and left to inspect if engine suspension lug buffer bush is loose.

  • Page 12: Ⅹ. Steering Stem Inspection

    Tire Specifications: Front wheel 3.0-10/3.50-10 Rear wheel 3.0-10/3.50-10 Inspect if front wheel nut is loose. front axle nut Inspect if rear wheel nut is loose. If loose, tighten them to specified torques. Torques: front wheel nut 60N·m rear wheel nut 120N·m rear axle nut X.

  • Page 13: Chapter Two Maintenance Information

    CHAPTER TWO MAINTENANCE INFORMATION I. FRAME NUMBER AND ENGINE NUMBER LOCATION frame number engine number II. PRECAUTIONS IN OPERATION Removed washers, 0-rings, elastic retaining rings and split pins must be replaced with new ones. When mounting bolts, nuts and screws, proceed from trial tightening, from larger diameters to smaller diameters and inner ones to outer ones in a diagonally order.

  • Page 14: Ⅲ. Specified Torques

    Before connecting connectors, confirm that they are free from breakage, bending, over length or loosening. Connectors must be inserted home. When connecting connectors with locks, confirm that their locks are fastened. Confirm that the wires are not loose. Confirm that connectors’ plastic sleeves completely cover the connectors without fail. Before connecting the connectors, confirm that their sleeves are free from breakage and their terminals are not oversized.
  • Page 15 SPECIFIED TORQUES Frame: Designations of tightening positions Number Thread specification Torques: N·m Engine suspension lug mounting nut Engine mounting nut Front axle nut Rear axle nut Rear shock absorber upper mounting bolt Rear shock absorber lower mounting bolt Front shock absorber upper lock bolt Steering stem lock nut Handlebar mounting nut Upper bearing top...

  • Page 16: Chapter Three Body Troubleshooting

    CHAPTER THREE BODY TROUBLESHOOTING SECTION ONE BODY COMMON TROUBLES AND TROUBLE DETECTION Body part common troubles and possible causes are as follows: Troubles Causes Details (reference) Handlebar rotation not Over tightening of handlebar adjusting nut Refer to “Front Fork easy (strenuous turning Service”...
  • Page 17 Chart continued Troubles Causes Details (reference) Inadequate liquid Contaminated brake block and brake disc Bent or deformed brake disc Contaminated brake caliper Worn seal ring of brake caliper piston Feeble brake Viscous or worn brake lever caliper piston Inability brake caliper normal sliding Worn main...
  • Page 18 Chart continued Troubles Causes Details (reference) Hardened brake block surface or dusty block Refer to “Rear Brake Abnormal braking sound Uneven or slotted brake block surface Service” Serious wear of brake block lining Serious slots inside brake drum Refer to “Front Fork Steering stem rotation not easy Service”...

  • Page 19: Section Two Detailed Descriptions Of Body Parts Troubles

    SECTION TWO DETAILED DESCRIPTION OF BODY PARTS TROUBLES Precautions in Operation: Forced mounting or dismounting of body cover parts will cause damage to claws and slots of corresponding hoods. When mounting body cover parts, be sure to align the corresponding parts of hoods. When mounting body cover parts, avoid pressing wires, cables or pipes.
  • Page 20 Axle Bending Inspection Place axle on a V-seat and measure with a dial gauge. The dial gauge indicates a 1/2 bending value. Limit of use: Replace if >0.2mm. Wheel Rim Oscillation Inspection Measure oscillation value on a correcting bench. Limit of use: Replace if >2.0mm. Traverse direction: Replace if >2.0mm.

  • Page 21: Ⅱ. Front Brake Service ( Disk Brake )

    Mount spacer. Drive in right bearings. Bearings must be driven in parallel. Dust cover must be driven in with the face out. Apply grease to new dust cover lip. Mount front axle bush. Front Wheel Mounting Mount brake disc, tighten brake disc mounting bolts. Torque: 27N·m Spread front axle with a thin film of grease.
  • Page 22 The specification of brake oil is indicated on the reservoir cover. Place diaphragm. Connect a transparent hose to exhaust valve. Grip brake lever fast and open exhaust valve 1/2 turn to let out air and lock exhaust valve. Repeat gripping this operation till no bubbles are exhausted from brake lever releasing...

  • Page 23: Ⅲ. Front Shock Absorber Service

    Remove brake light switch and brake lever. Remove retaining ring from main cylinder. Use special retaining ring remover when removing retaining ring. Remove piston cover, piston and spring. Clean oil reservoir and piston with pure brake oil. Do not effect cleaning with gasoline as it is corrosive to rubber parts.

  • Page 24: Ⅳ. Front Fork Service

    Remove 4 pieces of bolts on the upper part of front shock absorber. Remove shock absorber. bolt shock absorber Inspection Inspect if there is oil leakage in front shock absorber, if there is deformation of shock absorber arm and if there is damage or loosening of any part.
  • Page 25 Remove front wheel; Remove front shock absorber, front fender head tube bracket, etc. bottom bearing cup,bearing top and ball set front fender Remove steering stem from head tube. bracket shock The removing of the bottom bearing cup, bearing absorber front wheel top and bearing set is the same as the removing of the upper series.

  • Page 26: Ⅴ. Handlebar Service

    Apply grease to top bearing cup and bearing top. Mount in order upper bearing cup, bearing ball set and upper bearing top on the upper part of steering stem and fasten them. Torque: 15 N·m Turn front fork right and left to effect close contact of bearing balls. Loosen upper bearing top to torque 0 and fasten it.

  • Page 27: Ⅵ. Rear Wheel Service

    Mounting Mount handlebar on steering stem guide tube, fit bush bush, setting bolt and nut. Torque: 45 N·m Mount left handlebar switch and fasten screws. bolt Torque: 9 N·m Mount front brake main cylinder and fasten bolts. Mount right handlebar switch and fasten screws. Torque: 9 N·m Apply grease to throttle cable.

  • Page 28: Ⅶ. Rear Brake Service

    Mounting Mount rear wheel and fasten rear axle nut. Torque: 120N·m Mount exhaust muffler. Fasten exhaust muffler connecting nuts and bolts. exhaust muffler Torque: Exhaust muffler connecting nut: 12N·m rear axle nut Exhaust muffler mounting bolt: 35N·m VII. REAR BRAKE SERVICE Remove exhaust muffler.
  • Page 29 Rear Brake Device Assembling Apply grease to setting pin, brake cam and brake block friction surface. Apply grease to moving part of brake cam. Do not apply grease to parts not specified. Superfluous grease flows into brake friction linings of brake drum shall reduce braking effect. Mount brake cam.

  • Page 30: Ⅷ. Rear Shock Absorber Service

    VIII. REAR SHOCK ABSORBER SERVICE Dismounting Remove motorcycle body covering parts. Remove 2 mounting bolts of air filter. air filter mounting bolts Remove mounting bolt connecting rear shock absorber and motorcycle frame, bolt connecting upper mounting rear shock absorber and engine. bolt Withdraw air filter;...

This manual is also suitable for:

Bt49qt-3

Table of Contents

Save PDF