Thump TSK50cc User manual

MANUAL # 3627

Owner’s Manual
is vehicle is designed and manufactured for o-road use only.
is manual should be considered a permanent part of the
motorcycle and should remain with the motorcycle when
it is resold.
umpstar reserves the right to make changes at any time
without notice and without incurring any obligation.
is publication includes the latest production information
available before printing.
No part of this publication may be reproduced without written
permission.
is vehicle pictured in this owner’s manual may not match
your actual vehicle.
FOR OFF-ROAD USE ONLY
TSK50cc
vr:2

Contents
ese pages give an overview of the contents of your owner’s manual
Quick Reference .................................................................................... 1
Introduction ........................................................................................ 2
Motorcycle Assembly ........................................................................... 3
A Few Words About Safety .................................................................. 6
Motorcycle Safety ................................................................................. 7
Exhaust System ................................................................. 9
Fuel Handling .................................................................... 9
Safety Equipment ................................................................ 10
Message to Riders ................................................................................ 12
Loading, Accessories & Modications ............................................... 14
Safety Labels ........................................................................................ 16
Operating Controls ............................................................................. 17
Operation Component Locations ....................................... 17
Fuel Valve ......................................................................... 18
Choke Knob .................................................................... 19
Ignition Switch ................................................................ 20
Before Riding ..................................................................................... 21
Protective Gears ................................................................................. 22
Is Your Motorcycle Ready ................................................................... 23
Pre-Ride Inspection ........................................................................... 24
Basic Operation & Riding .................................................................. 26
Starting & Stopping the Engine ........................................................... 27
Braking ............................................................................................... 29
Parking ............................................................................................... 30
e Importance of your Maintenance ................................................ 31
Maintenance Safety ............................................................................. 33
Maintenance Schedule ........................................................................ 34
Maintenance ........................................................................................ 37
Front & Rear Breaks ....................................................... 37
Fuel Line and Tank ......................................................... 37
Oil Levels ........................................................................ 37
Replacing the Oil ............................................................. 38
Air Filter .......................................................................... 38
rottle ............................................................................. 39
Chain ................................................................................ 39
Tires ................................................................................. 40

Contents
General Cleanliness .......................................................... 40
Fuel ...................................................................................................... 41
Refueling Procedure .......................................................... 42
Electric Start Wiring Diagram ........................................................... 43
Engine Oil ........................................................................................... 44
Carburetor Adjustment & Tuning Tips ............................................ 48
Air Cleaner .......................................................................................... 53
Cleaning ........................................................................... 54
Clutch System ..................................................................................... 55
rottle ............................................................................................... 56
Valve Clearance ................................................................................... 59
Engine Idle Speed ............................................................................... 61
Component Inspection ....................................................................... 62
Spark Plug ........................................................................ 62
Suspension ........................................................................ 65
Brakes ................................................................................ 67
Wheels .............................................................................. 70
Tires & Tubes .................................................................... 74
Training Wheel .................................................................. 78
Drive Chain ...................................................................... 79
Battery .............................................................................. 84
Appearance Care ................................................................................ 87
Preparing for a Ride ........................................................................... 89
Transporting your umpstar ........................................................... 90
Storing your umpstar ..................................................................... 91
Troubleshooting ................................................................................ 93
You & the Environment ...................................................................... 96
Taking Care of the Unexpected .......................................................... 97
Vehicle Identication ......................................................................... 101
Oxygenated Fuels ............................................................................... 102
Specication ....................................................................................... 103
Spare Part Catalogue ......................................................................... 104
Torque Settings ................................................................................... 119
Parts Finder ....................................................................................... 124
Warranty ............................................................................................ 125
Disclaimer ......................................................................................... 126
Title Ownership ................................................................................ 128

1
Quick Reference
Model Version VR:2 (page 101)
Intial Maintenance 2 Hours or 1 month
Regular Maintenance 10 hours or 6 month
Fuel/Capacity 3L
Maximum Load 50kg
Oil (TSK 50) 10/30 or 10/40, 4 Stroke, 950mls / 32.1oz
Spark Plug Torch A7TC | NGK C7HSA
Tire Pressure 20 PSI Front / 20 PSI Rear
Tire Size 2.50-10”
Valve Clearance (TSK 50) .003” intake / .005” exhaust
Air Filter (TSK 50) Airbox Part Number #1.027.0360
Handle Bar 7/8 560-570mm
Wheel Bearings 15mm 6202
Swingarm Bearings 10mm 6200
Engine/Mount 1P44FZB/TSmini
Plastics TSmini
Brake Pad Front Part number# 4.450.0070 Model# XF50
Brake Pad Rear Part number# 4.450.0060 Model# 145
rottle Cable 650mm+116mm
Fuse

2
Introduction
Congratulations in your decision to purchase a Genuine
umpstar Dirt bike. e following manual has been prepared to
familiarise you with your motorcycle, and the procedures involved with
operating and maintaining the motorcycle.
is manual also outlines general safety recommendations. We strongly
advise that you take safety in mind at all times when maintaining and
operating you dirt bike.
umpstar condone safe riding and do not take any responsibility for any
damages caused to any persons or property due to inappropriate riding
and safety precautions umpstar Strongly recommends reading this
manual thoroughly BEFORE attempting any assembly or operation
of the bike. umpstar Strongly recommends the use of the correct
safety gear and safety procedures.
Warning: umpstar is only recommend riding privately on closed
course tracks by experienced riders and is not for general oroad
recreational use, before riding anywhere other than on private land
umpstar advise contacting your local road authority for further
information, laws and restrictions.
Please note: umpstar produce a range of dirt bikes, some photographs
and diagrams specic to component parts may dier slightly from the
model you have purchased/received. If in doubt at any point, please
contact a qualied mechanic or contact us for support.
Whenever you ride, tread lightly. By only riding in private closed
course tracks and approved riding areas, you help protect the
environment and keep o-road riding areas open for the future.
Please report any change of address or ownership to your dealer so
we will be able to contact you concerning important product information.
HAPPY RIDING!

3
Motorcycle Assembly
Always have a Qualied Mechanic Assemble Your New Motorcycle
Tools Required:
• Bike Stand
• Liing Jack
• 8, 10, 12, 13, 14, 17, 19mm socket
and spanner
• 5, 6mm Allen Key/Hex Tool
• Rubber Mullet
• WD 40
□ Tick box once task has been completed
□Remove Bike & all accessories from crate
□Install handlebars and route cables and front brake hose before install-
ing fork
□Front brake hose(1) should be at front, then throttle cable(2), last the
kill switch wire(3)
□e longer front wheel (1) spacer will always be installed on the le/disc
side (page 70)
□Fork Standard setting is 10mm out of clamp but depending on rider
preference, use copper grease on triple clamp bolts to prevent damage to
the alloy threads & then rmly tighten.
1
1
2
4
p
• Lubricant
• Grease
• Paint Pen
• read Lock Glue
• Zip Tie
• Tire Pressure Gauge

4
Motorcycle Assembly
□Use thread lock compound on front brake calliper bolts and torque to
9.9 N.M Pump front brake lever until rm (bleed if necessary). Check front
braking system for potential leaks or damage by pulling brake lever very
hard several times. Visually inspect all joints for leaks (page 67)
□Grease front axel - Recommend using “Anti Seize Grease” (page 71)
□Front wheel should spin freely, spin wheel to ensure calliper is releasing
from disk (page 67)
□Test rear brake pedal & repeat procedure described for front brake
(page 69)
□Check uid levels, top up with DOT4 where necessary (page 67)
□Fit front mudguard and ensure step washer are installed correctly.
□Fit foot pegs and use grease on foot peg pins
□Ensure the correct pressure in tires – (page 74)
□Loosen rear wheel & adjust chain tension. (page 80)
□Working from front to rear, ensure all nuts & bolts are tight. Safety
areas: Wheel nuts, brake calliper bolts, Top & rear engine bolts, chain
tensioners, rear shock bolts, triple clamp bolts (yokes), Handlebars, brake/
throttle, swing-arm, front & rear sprocket.
□Aer checking the torque settings (page 119), please reference mark
each bolt with paint marker. If any bolt does comes loose the lines will not
line up.
□Ensure nothing is touching the exhaust system.
□Ensure all cables pipes & wiring are away from moving components
such as the wheels, use cable/zip ties where necessary
□Fuel bike & check for fuel leaks (page 44)

5
□Check oil level with bike in upright position using dipstick (page 46)
□Check throttle is working correctly with freeplay adjusted correctly
(page 57)
□Ensure wheel spokes are tight & wheels run true (page 70)
□Inspect bike for any other defects
□Start engine & warm up (using choke if necessary). Set idle speed so
engine ticks over comfortably without stalling or racing. (page 61)
□Test machine ensuring that all controls are uid & functional. Ensure
brakes are working eciently (bearing in mind that the pads will need to
bed in prior to optimum performance).
Engine break-in
Run bike at no more than three quarter throttle & do not allow engine to
rev to a high speed. Engine break-in should be no less than one hour.
Aer one hours carry out the following checks & procedures:
□Drain oil & replace with 950mls quality 10w 30w or 10w 40 4-stroke
engine oil (page 47)
□Check all nuts & bolts & tighten where necessary (page 119)
□Check wheel spokes (especially rear wheel drive side) & tighten where
necessary
□Re-Adjust throttle cable if required (page 56)
□Re-tension chain and lubricate
□Check wheel bearings for any sign of wear of free-play
□Check brake calliper operation & brake pad wear (page 67)
□Check tire pressures (page 74)
Remember to do pre-ride inspection each time you ride (page 24)
Motorcycle Assembly

6
A Few Words About Safety
Your safety, and the safety of others, is very important. And operating
this motorcycle safely is an important responsibility.
WARNING
Always use an
approved helmet &
protective gear
Never use
public roads
Never use with
drugs or alcohol
Never carry
passengers
is section presents some of the most important information and
recommendations to help you ride your motorcycle safely. Please take
a few moments to read these pages. is section also includes a
special message for parents and location information for the safety
labels on your motorcycle.
You WILL be KILLED or SERIOUSLY
HURT if you don’t follow instructions.
You CAN be KILLED or SERIOUSLY
HURT if you don’t follow instructions.
You CAN be HURT if you don’t follow
instructions.