ENGLISH
enducross EC´09
Foreword
GAS GAS thanks you for the trust you have placed in us.
By choosing the new GAS GAS EC / MC / SM 2009 you have become part of the great GAS GAS family and, as a user of the number one manufacturer of off-road motorbikes, 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 EC / MC / SM 2009 is a motorcycle conceived for the practice of high-competition. 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 motorcycles of the highest level, GAS GAS unique motorcycles which count on important key factors: reliability, high features and a good stability.
Congratulations for making the right choice. With your skills at the command of this motorcycle, its adequate preparation and the corresponding indispensable servicing, this motorcycle will prove to be highly reliable, and you will be able to enjoy the most comfortable and rewarding practice of your favorite sport.
Thank you for your trust in us, and welcome to GAS GAS Motos, S.A.
Julyl 2008
-3-
HOW TO USE THIS MANUAL
Read this Manual carefully. You will find it contains all the necessary information for your safety, and that of other persons, as well as guaranteeing the correct conservation and maintenance of the GAS GAS motorcycle that you have just acquired.
You will find all the necessary instructions for the correct riding and control of this vehicle are set out below. Each message is preceded by a symbol with the following meaning: .
WARNING
This warning symbol identifies special instructions or procedures which, if not correctly followed, could result in personal injury or even death.
CAUTION
This symbol identifies instructions or procedures which, if not followed strictly, could result in damage to or destruction of equipment.
NOTE
This note symbol indicates points of particular interest for more efficient and convenient operation.
Motorcycle riding, if improverly conducted, has the potential to cause environmental problems as well as conflicts with other people. Responsible riding use of your motorcycle will ensure that these problems and conflicts do not develop.
TO PROTECT THE FUTURE OF YOUR SPORT MAKE SURE YOU USE YOUR MOTORCYCLE WHITHIN THE LAW, SHOW CONCERN FOR THE ENVIRONMENT, AND RESPECT THE RIGHTS OF OTHER PEOPLE.
Motorcycle riding is a wonderful sport, and we hope you will enjoy it to the fullest.
RECOMMENDS THE USE OF OIL:
-4-
TABLE OF CONTENTS |
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Foreword........................................................................................... |
3 |
How to use this manual..................................................................... |
4 |
Table of contents............................................................................... |
5 |
Specifications.................................................................................... |
6 |
Location of components.................................................................... |
8 |
Side Stand ...................................................................................... |
12 |
Fuel ................................................................................................. |
12 |
Serial Number ................................................................................. |
14 |
Homologation Plate......................................................................... |
14 |
Starting the engine.......................................................................... |
14 |
Shifting gears .................................................................................. |
15 |
Stopping the motorcycle ................................................................. |
16 |
Riding during the Break-In Period................................................... |
16 |
Maintenance Schedule ................................................................... |
17 |
Electronic Ignition............................................................................ |
19 |
Cooling System............................................................................... |
19 |
Spark Plug ...................................................................................... |
20 |
Transmission................................................................................... |
22 |
Air Cleaner ...................................................................................... |
24 |
Throttle Cable ................................................................................. |
25 |
Carburetor....................................................................................... |
25 |
Clutch.............................................................................................. |
26 |
Exhaust System .............................................................................. |
26 |
Drive Chain Guide........................................................................... |
27 |
Handlebar ....................................................................................... |
29 |
Brakes............................................................................................. |
30 |
Steering........................................................................................... |
31 |
Steering blockage ........................................................................... |
32 |
Front Fork ....................................................................................... |
33 |
Rear suspension ............................................................................. |
36 |
Wheels ............................................................................................ |
38 |
Cleaning.......................................................................................... |
39 |
Bolts and nuts tightening................................................................. |
40 |
Lubrication ...................................................................................... |
42 |
Tunning (Carburetor and Suspension)............................................ |
43 |
Final recommendatios..................................................................... |
51 |
Homologation.................................................................................. |
52 |
Preparation for competition............................................................. |
53 |
Storage ........................................................................................... |
54 |
GAS GAS Multifunction Instructions .............................................. |
55 |
Troubleshooting .............................................................................. |
63 |
Electric Schemas ............................................................................ |
68 |
Warranty Manual............................................................................. |
69 |
-5-
SPECIFICATIONS
ENGINE |
2 cycles, single cylinder, crankcase intake, liquid cooled |
125 cc Engine |
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Bore and stroke |
54 x 54.5 mm |
Displacement |
124 cc |
200 cc Engine (only EC) |
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Bore and stroke |
62.5 x 65 mm |
Displacement |
199.4 cc |
250 cc Engine |
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Bore and stroke |
66.4 x 72 mm |
Displacement |
249.3 cc |
300 cc Engine (only EC) |
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Bore and stroke |
72 x 72 mm |
Displacement |
294.7 cc |
Carburettor, diameter of diffusor |
38 |
Lubrication system |
Mixture |
100% Synthetic Oil |
50:1 = 2% |
Mineral Oil (Only USA) |
32:1 = 3% |
Starting system |
Starting lever |
Ignition system |
CDI system |
Ignition timing |
1 mm BTDC |
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TRANSMISSION |
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Transmission type |
6 speed in cascade |
Clutch type |
Hydraulic operated multi-plate in oil bath |
Secondary drive |
Chain driven |
Gear ratio (200 cc, 250 cc, 300 cc) |
1st 2.071 (29/14) |
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2nd 1.625 (26/16) |
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3rd 1.333 (24/18) |
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4th 1.100 (22/20) |
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5th 0.913 (21/23) |
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6th 0.791 (19/24) |
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-6-
Primary reduction |
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2.85 (57/20) (250 cc, 300 cc) |
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Final reduction |
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3.692 (48/13) (250 cc, 300 cc) |
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Overall gear ratio |
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8.323 (6th gear) |
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Transmission oil |
Capacity |
750 cc (125 cc) |
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900 cc |
(200 cc / 250 cc / 300 cc) |
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Type |
10W30 API SF or SG |
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CHASSIS |
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Type |
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Tubular, semi-double cradle |
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Tire size |
Front |
EC & MC - 90/90 x 21 |
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SM |
- 120/60 ZR17 |
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Rear |
EC |
- 140/80 x 18 |
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MC |
- 120/80 x 19 |
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SM |
- 150/60 ZR17 |
Suspension |
Front |
Inverted telescopic fork ø 45 mm (only EC, SM and MC 125) |
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Inverted telescopic fork ø 50 mm (only MC 250) |
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Rear |
Progressive system with single multi-adjustable shock |
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Suspension stroke |
Front |
282 mm |
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Rear |
320 mm |
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Front fork oil |
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SAE 5 - 7.5 |
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Front fork oil level |
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110 mm (compressed, without spring) |
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BRAKES |
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Type |
Front, Rear |
Disc brake |
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Effective disc diameter |
Front |
260 mm (only EC and MC) |
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320 mm (only SM) |
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Rear |
220 mm |
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DIMENSIONES |
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Overall height |
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1260 mm |
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Overall length |
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2135 mm |
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Overall width |
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810 mm |
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Seat height |
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940 mm |
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Minimum height |
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340 mm |
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Wheelbase |
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1475 mm |
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Fuel tank capacity |
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9 l |
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(Specifications are subject to change without notice and probably do not apply to all countries).
-7-
LOCATION OF COMPONENTS
GAS GAS EC 2009 |
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1- Clutch lever |
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2- Steering, lights, horn and |
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headlamp controls |
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3- Fuel tank cap |
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4- Brake fluid reservoir |
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5- Front brake lever |
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6- Throttle grip |
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7- CDI Switch |
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GAS GAS MC 2009 |
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1- Clutch lever |
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2- Engine stop button |
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3- Fuel tank cap |
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4- Brake fluid reservoir |
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5- Front brake lever |
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6- Throttle grip |
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7- CDI Switch |
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5 |
6 |
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GAS GAS SM 2009 |
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1- Clutch lever |
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2- Steering, lights, horn and |
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headlamp controls |
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3- Fuel tank cap |
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4- Brake fluid reservoir |
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5- Front brake lever |
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6- Throttle grip |
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7- CDI Switch |
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-8-
GAS GAS EC 2009
7- |
Brake disc |
17Air cleaner |
8- |
Front suspension |
18Muffler |
9- |
Brake fluid reservoir |
19Seat |
10Fuel tank |
20Gas reservoir |
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11Carburetor |
21Chain guide |
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12Rear shock absorber |
22Chain |
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13Brake caliper |
23Suspension linkage and swingarm |
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14Radiator |
24Rear brake pedal |
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15Gasoline cock |
25- Kick-start pedal |
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16Shift pedal |
26Exhaust |
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-9- |
GAS GAS MC 2009 |
18 |
19 |
9 20 |
10 |
8 |
7 |
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22 21 |
23 |
24 25 |
26 14 |
13 |
7- |
Brake disc |
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20Gas reservoir & Rear shock absorber |
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8- |
Front suspension |
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21Chain guide |
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9- |
Brake fluid reservoir |
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22Chain |
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10Fuel tank |
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23Suspension linkage and swingarm |
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13Brake caliper |
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24Rear brake pedal |
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14Radiator |
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25- Kick-start pedal |
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18Muffler |
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26Exhaust |
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19Seat |
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-10-
GAS GAS SM 2009 |
18 |
19 |
20 |
10 |
9 |
8 |
7 |
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21 2223 24 25 26 14 13
7- |
Brake disc |
20Gas reservoir & Rear shock absorber |
8- |
Front suspension |
21Chain guide |
9- |
Brake fluid reservoir |
22Chain |
10Fuel tank |
23Suspension linkage and swingarm |
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14Radiator |
24Rear brake pedal |
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18Muffler |
25- Kick-start pedal |
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19Seat |
26Exhaust |
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-11-
SIDE STAND (only EC and SM)
To set the side stand only turn it until it contacts the stopper, then the side stand will be parallel to the ground and rest securely.
The side stand will return to its original position by means of the double spring. The function of the double spring insures that, when the side stand is down, the rest position is stable and above all secure; moreover, it also returns the side stand to its original position.
EC 2008 and
SM 2008
(A). Side stand.
(B). Double spring.
MC 2009
(A). Side stand.
NOTE
Do not start the engine or ride the motorcycle when the side stand is down.
FUEL
The GAS GAS EC / MC / SM models have 2-cycle engines that require a mixture of gasoline and oil.
Gas Tank Capacity
9 L
(A). Fuel tank cap.
(B). Vapor outlet tube.
The fuel tank cap is of the quick-release type.
To open the fuel tank cap, lift the plated latch and turn cap counterclockwise.
To close it, turn the cap clockwise and lower the latch.
NOTE
It is recommended that the rubber seal should be checked thoroughly to insure it is airtight.
-12-
RECOMMENDED FUEL
Use gasoline with an octane rating equal to or higher than that shown in the table.
OCTANE RATING METHOD |
MINIUM |
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RATING |
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Antiknock Index |
(RON+MON)/2 |
90 |
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Research Octane No. |
(RON) |
98 |
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NOTE
If knocking or pinging occurs, try a different brand of gasoline or higher octane grade.
WARNING
Gasoline is extremely flammable and can be explosive under certain conditions. Always stop the engine and do not smoke. Make sure the area is well ventilated and free from any source of flame or sparks; this includes any appliance with a pilot light.
Mixing oil inside the engine
Oil must be mixed with gasoline to lubricate the piston, cylinder, crankshaft, and connecting rod bearings.
Recommended oil:
2-CYCLE SYNTHETIC
NOTE
If the recommended oil is not available, use only oil designed for racing with 2-cycle engines.
Gasoline and engine oil mixing proportions: Synthetic oil 100%: gasoline 50, engine oil 1 = 2% Semi-synthetic oil: gasoline 50, engine oil 1 = 2% Mineral oil: gasoline 32, engine oil 1 = 3%
CAUTION
Do not mix vegetable and mineral based oils.
Too much oil will cause excessive smoking and spark plug fouling. Too little oil will cause engine damage or premature wear.
CAUTION
Below 0 ºC do not use 100% synthetic oil.
To prepare the mixture, first pour oil and half of the gasoline used into a container and stir the mixture thoroughly. Then add the rest of the gasoline and stir the mixture well.
NOTE
At low temperature, oil will not easily mix with gasoline. Take time to ensure a well-blended mixture.
The lubrication quality of this mixture deteriorates rapidly; use a fresh mixture for each day of operation.
-13-
SERIAL NUMBER (A)
It is stamped on the steering pipe. It indicates the frame number registered for this motorcycle.
HOMOLOGATION PLATE (B)
This motorcycle carries its corresponding homologation plate where it also shows the serial number, and this data must match the information registered in the motorcycle documents.
(A)
(B)
STARTING THE ENGINE
1.Make sure the motorcycle is in the neutral position.
2.Turn the gasoline cock (A) clockwise to the "ON" position.
ON
Open
OFF |
RES |
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Reserve |
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Close |
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(A)
3. If the engine is cold, pull up the choke knob (B).
-14-
NOTE
-When the engine is already warm or on hot days, open the throttle instead of using the choke knob.
-If the engine is flooded, kick with the throttle fully open.
-If the clutch lever is pulled, the motorcycle can be started while in any gear.
4.Start the motorcycle with
kick-start pedal (C).
5. Even after the engine starts, keep the choke knob pulled up.
Stopping the engine (EC and SM models)
1. Shift the transmission into neutral.
2. After racing the engine slightly, close the throttle completely and depress the engine stop button (D).
Stopping the engine (MC model)
1.Shift the transmission into neutral.
2.After racing the engine
slightly, close the throttle completely and depress the engine stop button
(A).
(A)
SHIFTING GEARS
The transmission is a 6-speed, of the return shift type. A return shift means that to go from first gear to third gear it must go first through the second gear, that is to say that it upshifts gears one by one. To engage first gear from neutral, pull the clutch lever in and push down on the gearshift pedal, then release the gearshift pedal and gently release the clutch lever.
CAUTION
When shifting gears, press firmly on the gearshift pedal to ensure a positive shifting. Careless, incomplete shifts can cause the transmission to jump out of gear and cause engine damage.
(A). Gearshift pedal.
-15-
STOPPING THE MOTORCYCLE
For maximum deceleration, close the throttle (A) and apply both front and rear brakes. Disengage the clutch as the motorcycle comes to a stop. Independent use of the front or rear brake may be advantageous under certain conditions.
Downshift progressively as speed is reduced to ensure good engine response when you want to accelerate.
RIDING DURING THE BREAK-IN PERIOD
A break-in period is necessary to ensure a smooth operation and obtain an optimum engine and the transmission responses. During the first hour or 20 km of operation, run the engine at low and moderate speeds and revolutions per minute (RPM).
NOTE
The slow riding necessary during the break-in period may cause carbon deposits to build up on the spark plug and foul it. If
inspection of the spark plug shows this to be the case, replace the standard spark plug with another of a higher heat range.
Perform the break-in period following these steps:
1.Start the engine and let it run at idle until the engine is warm.
2.Stop and let the engine cool completely.
3.Start the engine and ride for 10 minutes at moderate speed - NEVER ACCELERATE HARD.
4.Stop and let the engine cool completely. Be sure to check and adjust chain slack and spoke tightness and cxarry out a general inspection.
5.Start the engine and ride for 20 minutes at moderate speed. - NEVER ACCELERATE HARD.
6.Stop and let the engine cool completely. Check and adjust as needed (Refer to the table of adjustments).
7.Install the parts removed.
8.Fill the radiator with the recommended coolant. Before starting the motorcycle, bleed the air from the cooling system.
9.Start the engine and ride for 30 minutes at moderate speed.
10.Stop and let the engine cool completely. Check and adjust.
11.After the break-in procedure has been properly carried out, the motorcycle is ready for regular operation.
CAUTION
However, avoid accelerating recklessly that can lead to engine failure. Be careful to use the necessary skills and techniques while operating the motorcycle.
NOTE
After the break-in period, install a new set of standard spark plugs.
-16-
MANTENANCE SCHEDULE
Item |
Check / Inspect |
Adjust |
Change / Replace |
Clean |
Apply grease / |
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Lubricate |
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Clutch |
At each fill up |
At each fill up |
At each fill up* |
- |
At each fill up |
Discs |
3 fill ups |
3 fill ups* |
3 fill ups* |
- |
- |
Throttle cable |
- |
1 fill up |
- |
- |
- |
Spark plug |
- |
- |
- |
1 fill up |
- |
Air cleaner element |
- |
- |
When damaged |
1 fill up |
- |
Carburetor |
1 fill up |
1 fill up |
- |
- |
- |
Transmission oil |
- |
- |
3 fill ups |
- |
- |
Piston and piston ring |
3 fill ups |
3 fill ups* |
3 fill ups* |
3 fill ups |
- |
Cylinder head, cyl. & exhaust valves |
3 fill ups |
3 fill ups* |
3 fill ups* |
- |
- |
Exhaust |
1 fill up |
1 fill up* |
1 fill up* |
1 fill up |
- |
Muffler gasket |
- |
10 fill ups* |
10 fill ups |
- |
- |
Piston bearing |
3 fill ups |
3 fill ups* |
10 fill ups |
- |
3 fill ups |
Kick-start pedal and gearshift pedal |
- |
- |
- |
- |
1 fill up |
Exhaust pipe o'ring |
- |
- |
3 fill ups |
- |
- |
Engine bearings |
10 fill ups |
10 fill ups* |
10 fill ups* |
- |
- |
Coolant |
3 fill ups |
3 fill ups* |
3 fill ups* |
- |
- |
Radiator tube and connections |
1 fill up |
1 fill up* |
1 fill up* |
- |
- |
Brake adjustment |
3 fill ups |
3 fill ups* |
3 fill ups* |
- |
- |
Brake pads wear |
5 fill ups |
5 fill ups* |
5 fill ups* |
- |
- |
Brake fluid level |
3 fill ups |
3 fill ups* |
3 fill ups* |
- |
- |
Brake fluid |
- |
- |
Every 2 years |
- |
- |
Brake pump piston & dust cover |
- |
- |
Every 2 years |
- |
- |
The maintenance and adjustments in this table are easy to follow and must be carried out to keep the motorcycle in good running condition.
NOTE: (*) Inspect and carry out these operations only if it is necessary.
-17-
MANTENANCE SCHEDULE
Item |
Check / Inspect |
Adjust |
Change / Replace |
Clean |
Apply grease / |
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Lubricate |
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Brake caliper piston seal & dust seal |
- |
- |
Every 2 years |
- |
- |
Brake hose and pipe |
- |
- |
Every 4 years |
- |
- |
Spoke tightness and rim runout |
1 fill up |
1 fill up* |
1 fill up* |
- |
- |
Lubricate drive chain |
- |
- |
- |
- |
1 fill up |
Drive chain |
1 fill up |
- |
- |
- |
- |
Drive chain wear |
- |
5 fill ups |
5 fill ups |
- |
- |
Chain slider |
5 fill ups |
5 fill ups* |
5 fill ups* |
- |
- |
Front fork |
1 fill up |
When necessary |
When damaged |
When necessary |
- |
Front fork oil |
- |
- |
Every year |
- |
- |
Nuts, bolt, fasteners |
5 fill ups |
5 fill ups* |
5 fill ups* |
- |
- |
Fuel hose |
7 fill ups |
7 fill ups* |
7 fill ups |
- |
- |
Fuel system |
- |
- |
10 fill ups |
When necessary |
- |
Steering play |
1 fill up |
- |
- |
- |
- |
Rear sprocket |
5 fill ups |
5 fill ups* |
5 fill ups* |
- |
- |
General lubrication |
5 fill ups |
- |
- |
- |
5 fill ups |
Steering bearing |
- |
- |
- |
- |
10 fill ups |
Wheel bearing |
10 fill ups |
10 fill ups* |
10 fill ups* |
- |
- |
Swingarm and linkages |
5 fill ups |
5 fill ups* |
5 fill ups* |
- |
5 fill ups |
Rear shock absorber oil |
Every 2 years |
2 years* |
2 years* |
- |
- |
The maintenance and adjustments in this table are easy to follow and must be carried out to keep the motorcycle in good running condition.
NOTE: (*) Inspect and carry out these operations only if it is necessary.
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ELECTRONIC IGNITION
This motorcycle uses a capacitor discharge ignition system (CDI). The ignition system should never require adjustment unless the stator of the magnetic flywheel was incorrectly installed during engine reassembly.
If necessary, inspect and adjust as follows:
Adjustment
-Remove the magnetic flywheel cover (A).
-Make sure that the mark on the stator plate is aligned with the mark on the crankcase.
125 cc
(A)
200 / 250 / 300 cc
-If the marks are not aligned, loosen the magnetic inertia wheel screws and turn it.
-Tighten the screws securely.
-Install the magnetic flywheel cover.
NOTE
Engine tune-up can be adjusted to match the rider´s preferences and skills.
-Remove the magnetic flywheel cover.
-Loosen the stator screws.
-Adjust the engine tune-up by changing the position of the stator within prudent limits
NOTE
For the best engine performance, it is very important to adjust the engine tune-up within the set of limits described.
-Tighten the stator screws.
-Install the magnetic flywheel cover.
-Test ride the motorcycle and readjust the engine tune-up, if necessary.
COOLING SYSTEM
Radiator Hoses
Check the radiator hoses for cuts or deterioration, and the connections for looseness and leaks.
Radiator
Check the radiator fins for obstructions (insects or mud). Remove any obstructions with a stream of low water pressure.
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CAUTION
If high water pressure is used the radiator fins could be damaged and impair the radiator effectiveness.
Do not obstruct or deflect airflow through the radiator by installing unauthorized accessories. Any interference with the radiator airflow can lead to engine overheating and damage.
Coolant information
To protect the cooling system aluminum parts (engine and radiator) from rust and corrosion, the use of corrosion and rust inhibitors chemicals in the coolant is essential. If rust inhibitors were not used, over a period of time the radiator will be corroded. This will clog the tubes of the cooling system.
CAUTION
Use of incorrect coolant solutions will cause engine and cooling system damage.
Use coolant containing corrosion inhibitors made specifically for aluminum engines and radiators in accordance with the instructions
of the manufacturer.
WARNING
Chemical liquids are harmful to the human body. Follow manufacturer instructions.
CAUTION
Distilled water must be used with corrosion inhibitors and the antifreeze in the cooling system. If tap water is used in the system, the cooling tubes can be clogged and reduce the cooling system efficiency.
If the lowest ambient temperature encountered falls below the freezing point of water, protect the cooling system. Use a permanent type of antifreeze in the cooling system (distilled water and ethylene glycol and corrossion inhibitors for aluminium engines and radiators).
For the coolant mixture ratio under extreme conditions, choose the mixture ratio listed on the container for the lowest ambient temperature.
CAUTION
Permantent types of antifreeze have anticorrosion and anti-rust properties. When it is diluted excessively, it loses its antifreeze and anticorrosion properties. Mix in accordance with the instructions of manufacturer.
Liquid recommended
Permanent type of antifreeze (distilled water and ethylene glycol) plus corrossion inhibitors for aluminium engines and radiators.
NOTE
Initially, at the factory a permanent type of antifreeze is installed in the cooling system. It is colored green, it contains a 50% solution of ethylene glycol, and has a freezing point of –35 ºC.
Coolant recommended
Coolant absorbs excessive heat from the engine and transfers it to the air at the radiator. If the coolant level is low, the engine overheats and may suffer severe damage. Check the coolant level each day before riding the motorcycle. Add liquid recommended if the level is low (see next page).
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WARNING
To prevent severe scalding do not remove the radiator cap or try to change liquid, when the engine is still hot. Wait until it cools.
Coolant level
-Place the motorcycle in riding position.
-Turn the radiator cap (A) counterclockwise and wait a few seconds until vapors inside are released. Then push and turn it further in the same direction and remove the cap.
NOTE
Check the level when the engine is cold.
-Check the coolant level. The coolant level should be just at a level below de cap rubber seal.
-If the coolant level is low, add the correct amount of coolant through the filler opening.
(1). Coolant level.
(2). Filler opening.
Total quantity
Mix antifreeze and distilled water 1:1 (distilled water 50%, antifreeze 50%).
Capacity: 1.1 L
Coolant Replacement
Coolant should be changed periodically to ensure long engine life.
-Wait for the engine to cool completely.
-Place the motorcycle in riding position.
-Remove the radiator cap.
-Place a container under the coolant drain screw, and drain the coolant from the radiator and engine by removing the drain screw
(B) at the bottom of the water pump cover (A). Wash off immediately any coolant spilled on the chassis, engine, or wheels.
(A)
(A)
(B)
(B)
200 / 250 / 300 cc. |
125 cc. |
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WARNING
If coolant gets on the tires will make them very slippery and can cause an accident.
-Visually inspect the old coolant. If whitish spots are observed in the liquid is a clear indication that the aluminum parts in the cooling system are corroded. If the coolant is brown, iron or steel parts of the system are rusting. In both cases, flush the cooling system.
-Check the cooling system for damage, leaks or missing gaskets in the cooling system.
-Install the water pump cover drain screw with the specified torque values shown in the table. Always replace the gasket with a new one.
Drain plug tightening torque (refer to torque table) Water pump screw: 9 Nm
-Fill the radiator up to the edge of the cap with coolant, and install the radiator cap.
-Inspoect the cooling system for leaks.
-Start and warm up the engine, then stop the engine.
-Check the coolant level after the engine cools down. Add coolant up to the cap.
SPARK PLUG
The standard spark plug is a shown in the table and should be tightened to 27 Nm.
Standard Spark Plug
125 cc Denso W27ESR-U 0.7-0.8 mm OR NGK BR9EG
200 / 250 / 300 cc Denso W24ESR-U 0.7-0.8 mm OR NGK BR8EG
The spark plug should be removed periodically to check its gap. If the plug is oily or has carbon deposits, clean it with a sandblaster. After removing the abrasive particles, the spark plug must be cleaned using a wire brush or a similar tool. Measure the gap with a feeler gauge, if incorrect adjust the gap by bending the side electrode. If the spark plug electrodes are corroded or damaged, or if insulator is cracked, replace the plug.
NOTE
Inspect every 30 hours and change every 60 hours.
To find out whether the right heat range plug is being used, remove it and inspect the ceramic insulator around the center electrode. If the ceramic is light brown, the spark plug is correctly matched to engine temperature. If the ceramic is whie, the spark plug should be replaced with the next colder plug. If the ceramic is black, the spark plug should be replaced with the next hotter plug.
NOTE
If the engine performance drops, replace the spark plug first to recover its output.
TRANSMISSION
For the transmission and clutch to function properly, maintain the transmission oil level at the optimum level and change it periodically. A motorcycle with insufficient transmission oil, deteriorated or contaminated can accelerate wear and tear and cause transmission
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