Lambretta DUE50 User manual

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Owners Manual

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OWNERS RECORD
All correspondence relating to service problems may be addressed to:
14339 Lake City Way NE
Seattle, WA 98125
USA
Name:
Address:
Date purchased:
VIN:
Engine #:
Key #:
Dealer:

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BUSINESS CARD
THANK YOU for the condence you have placed in us. We will always do everything
possible to continue to earn your trust and goodwill.

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TABLE OF CONTENTS
OWNERS RECORD 3
BUSINESS CARD 4
FOREWORD 8
PRE-DELIVERY 10
BREAK IN PERIOD 13
IMPORTANT PRECAUTIONS 14
SAFETY PRECAUTIONS 15
CONTROLS AND GAUGES 20
HELMET STORAGE BIN 28
CENTER STAND 29

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PRE-RIDE CHECK 30
BASIC OPERATION 38
CARE AND MAINTENANCE 44
COMMON REASONS FOR REPAIR 59
TROUBLESHOOTING 60
CONTACTING LAMBRETTA 61
SPECIFICATIONS 62
RECOMMENDED PRODUCTS 65
REPORTING OF SAFETY DEFECTS 66
LIMITED WARRANTY COVERAGE 67

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MAINTENANCE SCHEDULE 83
MAINTENANCE & SERVICE RECORD 96
CHANGE OF ADDRESS/ OWNERSHIP FORM 99
NOTES 103

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FOREWORD
Dear valued customer,
Thank you from all of us at Lambretta International, LLC for
purchasing your Lambretta scooter. We extend our best wishes for many
miles of safe and pleasurable travel on your new Lambretta.
For your own safety and longer service life of the vehicle, we
urge you to follow the instructions and warnings contained in this manual.
Ignoring them could result in damage to the vehicle or personal injury or
death to you or others. The Lambretta Limited Warranty does not cover
vehicle damage caused by failure to follow the instructions outlined in this
manual.
We continually strive to improve our product and ask for your
understanding that we reserve the right to make changes in design and
equipment. Therefore, information, illustrations and descriptions in this
owner’s manual might differ from your vehicle. Lambretta International,
LLC reserves the right to make any modications to the vehicle, parts
and/or accessories at any time, without being obligated to bring this
booklet up to date.
If there are equipment details that are not shown or described
in this Owner’s Manual, your authorized Lambretta dealer will be glad to
inform you of correct care and operating procedures.
The Owner’s Manual and Maintenance Records are important
documents and should be kept with the vehicle.

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NOTE
Lambretta International, a Limited Liability Company based in Seattle,
Washington, hereinafter also known as Lambretta, Lambretta USA,
Lambretta Scooters, the manufacturer, the distributor and the company.
This manual describes the Lambretta DUE50, hereinafter
also known as the scooter, the motor scooter, the vehicle, the motor
vehicle and the motorcycle.

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PRE-DELIVERY
Your dealer has performed the following checks and adjustments prior to delivery of your vehicle. This list can also be
helpful to ensure proper working order of the vehicle after periods of storage or inoperation.
Brakes: Inspect brake cables/hoses/linkage for correct mounting, chang, leaks and damage.
Check and adjust both front and rear brakes. If hydraulic, check uid level and correct if
necessary (DOT 4 uid only).
Engine: Check and correct the engine oil level.
Fuel system: Check fuel tank, carburetor, fuel valve and all hoses for leaks.
Throttle system: Check for correct throttle cable routing.
Throttle operates smoothly and self-returns to idle from all handlebar positions.
Wheels/tires: Check wheels, tires and valve stem for damage, etc.
Check and adjust tire pressures.

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Suspension: Check for smooth suspension operation.
Lubricate all grease points using correct specication grease.
Check for correct suspension adjustments.
Inspect fork and shock seals for leaks.
Steering: Check for smooth steering operation and handlebar bearings for proper adjustments.
Electrical Systems: Check for correct function of all side, headlight and taillights, turn indicators, brake lights,
warning lights and instrument illumination.
Check for correct horn operation.
Check harnesses for correct routing.
Check for correct function of starter lockout system.
Check for correct engine stop switch operation.
Check for correct function of the low oil warning light.
Emission Systems: Check connections and hoses for routing and kinks.

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Fastening hardware: Check front and rear axle nut and bolt torque.
Check torque of drain plug and oil lter bolt.
Check torque of all brake system nuts and bolts.
Check torque of all steering system mounting hardware.
Check torque of exhaust mounting hardware.
Check torque of all remaining nuts, bolts & screws.
Road test Front and rear brake operation.
(approx. 10km): Check cold engine start performance.
Evaluate performance, handling and braking.
After road testing: Check hot engine starting.
Check and adjust idle speed.
Check for oil and fuel leaks.
Make necessary adjustments and repair any defects seen or observed
before, during and after test drive. Retest as necessary.
Clean the vehicle prior to delivery.

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BREAK IN PERIOD
During the rst 625 miles (1,000 km) of driving, observe the following
break in procedure:
Allow the engine to warm up for approximately one minute before use.
Do not exceed 80% of full throttle opening.
Do not undertake long journeys at constant speed.
Check engine oil level frequently. The engine consumes more oil until it
is fully broken in.
After the rst 625 miles, (1,000 km) you can start increasing speed
gradually up to the maximum (within the limits of the law and in
accordance with road and trafc conditions).
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IMPORTANT PRECAUTIONS
The following precautions must be observed if your vehicle is equipped with a catalytic converter.
If you are unsure whether your scooter has a catalytic converter or not, check with your dealer.
The catalytic converter, which is installed inside the mufer, reduces the exhaust emissions and
is required in some countries.
CAUTION
Use only unleaded gasoline. Even a small amount of normal leaded gasoline will damage
the catalyst and make the catalytic converter completely ineffective.
Never turn off the engine when the scooter is in motion. Also, never try to start your scooter
by pushing it, towing it, or coasting it down a hill. Failure to observe these precautions will
damage the catalytic converter, and can lead to serious overheating, or even a re, which
could cause serious injury to you and serious damage to your scooter.
If the engine misres or appears to have any loss of performance, immediately take your
scooter to your authorized Lambretta Dealer.
Make sure ammable materials such as dry grass or leaves do not come in contact with the
exhaust system of your scooter.
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SAFETY PRECAUTIONS
Read owner’s manual.
Read the Motorcycle Safety Foundation’s scooter riding tips booklet which accompanies this
manual.
New or inexperienced riders should take a Rider Safety Course from a qualied safety
organization such as the Motorcycle Safety Foundation before riding on the scooter.
Always obey trafc signs and laws.
Always wear a properly tted helmet.
Always ride at a safe speed.
Never wear loose clothing that could catch on the controls or wheels.
Do not overload the scooter.
Never operate the scooter in an enclosed area.
Carry objects in the designated areas only.
Never modify the scooter in any way.
Do not carry more than 20 pounds in the luggage box.
It is important to have a properly functioning battery for safety features such as headlight,
horn, turn signals, brake and running lights, and low oil warning light to function properly.
Specic training and license may be required by law and is recommended for carrying a
passenger.
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Please read and observe the following safety guidelines for safe and pleasurable riding.
SAFETY TIPS

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SAFETY PRECAUTIONS
It takes time to become familiar with a new vehicle. Lambretta recommends against lending
your scooter to anyone not familiar with scooter operation in general and the Lambretta in
particular.
Starting, idling or moving the throttle may cause this vehicle to begin moving. Do not start the
motor scooter or move the throttle unless you are prepared for vehicle movement.
New tires do not have full traction until they are scuffed from use. Take extra care on slippery
or wet surfaces.
Do not carry your pets on the motor scooter.
Do not carry perishables or fragile items under the seat.
Do not turn the ignition key while driving. Doing so will shut off the engine and all electrical
systems and controls.
Always use both front and rear brakes at the same time for slowing or stopping. The use of
one brake only can cause skidding and make the rider lose control of the motor scooter.
If you notice any changes in the operation or feel of your scooter, refer to your owner’s manual
or take your motor scooter to your Lambretta dealer.
Research has shown that drivers of other motor vehicles often do not see motor scooters, so
drive defensively.
Wear bright colored and reective clothing for utmost visibility.
Most motor scooter accidents happen in the rst 6 months of ownership.
Most single vehicle accidents occur while taking a turn too fast.
Always be aware of your surroundings, including other vehicles, pedestrians, animals and
other road hazards.
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SAFETY PRECAUTIONS
Your riding skills and concentration diminish when you are cold, wet, too hot or dehydrated.
Proceed with caution and reduce speed in trafc, bad weather, and poor visibility and road
conditions.
Use extreme caution when braking on loose road surfaces such as sand, gravel, grass, debris
or leaves.
Make sure your state allows the use of your motor scooter on the road you plan to travel on.
Due to its size, weight and design, it is not safe to operate this motor scooter on the freeways,
expressways, and highways.
Use caution and pay close attention to any obstacles or variations in road surfaces. Uneven
roads, railroad tracks, manhole covers, painted road surfaces, road turtles and reectors,
leaves, road debris are all slippery and dangerous, especially when wet.
Avoid particularly steel plates, which are sometimes used during road maintenance. They can
be extremely dangerous and slippery, especially when wet.
Use extreme caution when riding on metal grated bridges.
The majority of crashes between motor scooters and cars happen at intersections. Use
extreme caution when approaching intersections.
Even when permitted by law, never operate a vehicle at speeds greater than the maximum
speed rating of the tires.
Always fasten items being carried as securely as possible. In an accident, during hard braking
or sudden maneuvers, loose, heavy or sharp items can cause injury even though the items
may be properly fastened to the vehicle. Therefore, the trunk is the preferred place to carry
objects.
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SAFETY PRECAUTIONS
Maintenance and Inspections
It is important to regularly inspect and maintain your scooter for safe and optimum performance.
Regular inspection and service is required to maintain your limited warranty. The limited warranty
period for this scooter is 24 months, or 20,000 kilometers, whichever comes rst. See the
service record pages in this booklet for the required service and
inspection intervals.
An authorized Lambretta Dealer, who is equipped with necessary facilities and is properly
trained, should do all maintenance and repairs on your scooter.
Riding Under The Inuence
Riding “under the inuence” of either alcohol or drugs poses physical and legal hazards for
every rider. According to the Department Of Licensing handbook in WA State, “Alcohol is a major
contributor to motorcycle collisions, particularly fatal collisions. Studies show that 40% to 45% of
all riders killed in motorcycle crashes had been drinking.
Only one-third of those riders had a blood alcohol concentration above legal limits. The rest had
only a few drinks in their systems-enough to impair riding skills”

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SAFETY PRECAUTIONS
If the Scooter Is Dropped Or Laid Down On It’s Side For Any Reason:
The engine oil may ow out through the crankcase breather tube, into the air cleaner and
other systems by transferring oil from the crankcase.
Scooters equipped with the Evaporation Control System can be damaged when the fuel ows
incorrectly out of the gas tank and through the breather hose on the top of the tank and back
into the Evaporation Control System.
The battery acid may also leak, if your scooter is equipped with a non-sealed battery. This can
damage the paint, metal, rubber and other components. You can neutralize the spilled battery
acid with water and baking soda.
Never allow the scooter to run while lying on its side. This will stop the ow of oil to the critical
engine parts.
In addition, fuel from the carburetor bowl may damage the air lter, or empty all its contents
into the cylinder and or mix with the engine oil.
An oil change, along with an emission and safety inspection to check for related damage, by
your dealer are strongly recommended at that point. Failure to observe this warning could
lead to severe damage to your motor scooter. As with any other accidental damage, this is not
covered by your limited warranty.
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CONTROLS AND GAUGES
Know your scooter
Before operating your scooter, you should familiarize yourself with the controls. It is important
that you can nd and operate the controls successfully without looking away from the road.