TXT Pro 2004
MANUAL DEL USUARIO
SERVICE MANUAL
MANUEL D’ENTRETIEN
LIBRETTO USO E MANUTENZIONE
MANUAL DEL USUARIO
SERVICE MANUAL
MANUEL D’ENTRETIEN
LIBRETTO USO E MANUTENZIONE
TXT Pro 2004 -
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GAS GAS thanks you for your confidence
By choosing the new GAS GAS Pro 2004 you have just entered the
great GAS GAS family and, as a user of the number one off-road
motorbike manufacturer, you deserve the distinguished treatment
that we wish to offer to you both in our after-sale relationship and
in the explanations that we provide in this manual.
Our Pro 2004 is a bike conceived for the practice of high-competition
trial. It is actually the fruit of many years of competition and
experimentation in this demanding discipline, as well as the many
great successes achieved thanks to great trial riders who have
contributed with their expertise to the basic data that have allowed
us to create a high-level motorbike, a GAS GAS which counts on
its low weight as a significant key factor.
Congratulations for making the right choice. With your skills at the
commands of this motorbike, an adequate preparation and the
indispensable servicing for this GAS GAS to be highly reliable, you
will be able to enjoy the most comfortable and rewarding trial
practice.
Thanks for your confidence and welcome to GAS GAS Motos.
GAS GAS MOTOS, S.A.
July - 2003
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Important notice
Read this manual carefully. It contains all the aspects that must contribute to your and other people's safety,
apart from guaranteeing the perfect conservation and maintenance or the GAS GAS motorbike that you have
just purchased.
All the instructions to ride and handle it correctly are detailed below. Each message is preceded by the signs
below and their corresponding meanings:
Beware! With this symbol we detail all the precautions that must be taken to avoid minor or severe
injuries and even the user’s death in case they are not followed correctly.
Attention! This symbol indicates the special recommendations to avoid damaging the motorbike. If they
are not followed the guarantee may be automatically extinguished.
Notes. They are the necessary indications for a better use of the control and adjustment operations, as
well as the conservation and maintenance works to be performed on the motorbike, so that you get the
biggest satisfaction when riding it.
The aim of this manual is to help the user to minimise or avoid injuries to other people or damage properties
or the environment, as well as to your new motorbike. That is why all the information presented is based on
data obtained from the most recent range available from the manufacturer right before this document was
printed. However, GAS GAS has the right to alter it with no previous notice to the consumer without incurring
in obligations of any kind. Your closest dealer will also help you by providing any information you may require.
Contents
Thanks to the costumer 3
Important notice 4
Recommendations to get the best performance out of your bike 6
Summary of the manual 7
Serial number 8
Draining the oil sump 8
Position of the fuel tap 8
Filling the oil sump 9
Position of the kickstart lever 9
Filling radiator 9
Greasing the links 10 to 12
Throttle cable play 13
Spark plug control 13
Carburettor 13
Regulation of levers 14
Cleaning the air filter
14
Position of chain link 15
Índice
Regulation of chain tension 15
Cleaning the carburettor 16
Intake reed valve 16
Clutch plates and springs 17
Water punp draining 18
Checking the oil level 18
Air drain valve 18
Clutch liquid circuit 19
Front and rear suspension 20
Verifying the bearings and swing arm 20
Shock absorber spring tension 21
Brakes 22
Commands 23
Ty re Pressure 24
Watch 25 to 27
Warranty regulation 28 to 30
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Recommendations to get the best performance out of your GAS GAS
We recommend an eight-hour running-in for the
best engine operation.
It is important to get the engine to its optimum
working temperature every time that the motorbike
is used.
Use 1.5% mixture of petrol and synthetic or
semi-synthetic 2-Stroke oil.
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Maintenance summary
Cooling liquid -30ºC cooling liquid
Sump oil (10w40) 550 c.c.
Spark plug NGK BPR5ES
Electrode gap 0.6 mm
Amount of oil in the fork 310 cm3
Length of shock-absorbing spring 140 mm
Suspension fork oil SAE 5
Front wheel pressure Normal 0.450 bar
Competition 0.420 bar
Rear wheel pressure Normal 0.350 bar
Competition 0.300 bar
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3
1
2
The position of the fuel
tap must be forward
rearward for normal
operation. When
turned upwards, it opens the
reserve, downwards it turns off the
fuel.
Reserve
Open
Close
The oil drain plug is
underneath the left
side of the engine. A
hole in the skid plate
makes it easier to drain the oil.
,
,
The new GAS GAS
Pro 2004 has its
corresponding
homologation plate,
which must correspond to the
documents and frame number,
printed in the steering axle.
,
4
A
B
6
5
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This is the position of the
kickstart lever when not in
use.
To fill the radiator, use
special cooling liquid for
light alloy engines.
The system holds
between 550 cc of
oil (10W40)
-30ºC cooling
liquid
To r efill oil, pour it
through the filler plug
and check the level in
the window.
,
,
,
9
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&
&
&
7
8
2) The gear lever pivot
You must use special oil
for:
1) The clutch and brake lever pivots
3) The rear brake pedal pivot (bearings)
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&
4) The foot peg
springs and pivots.
6) The chain must be
cleaned and oiled
regularly, due to its
constant friction and exposure to all
types of weather conditions.
&
&
5) The kick start lever.
11
10
12
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