GAS GAS EC 250 2021, Owner'S Manual

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TABLE OF CONTENTS
3
11 TUNING THE CHASSIS ................................................ 43
11.1 Checking the basic chassis setting with
the rider's weight ........................................ 43
11.2 Compression damping of the shock
absorber ...................................................... 43
11.3 Adjusting the low-speed compression
damping of the shock absorber .................. 43
11.4 Adjusting the high-speed compression
damping of the shock absorber .................. 44
11.5 Adjusting the rebound damping of the
shock absorber ............................................ 45
11.6 Measuring the dimension of the rear
wheel unloaded........................................... 45
11.7 Checking the static sag of the shock
absorber ...................................................... 46
11.8 Checking the riding sag of the shock
absorber ...................................................... 46
11.9 Adjusting the spring preload of the
shock absorber ........................................ 47
11.10 Adjusting the riding sag ........................... 48
11.11 Checking the basic setting of the fork ........ 48
11.12 Adjusting the compression damping of
the fork ........................................................ 49
11.13 Adjusting the rebound damping of the
fork............................................................... 49
11.14 Handlebar position...................................... 50
11.15 Adjusting the handlebar position ........... 50
12 SERVICE WORK ON THE CHASSIS .............................. 52
12.1 Raising the motorcycle with a lift stand ..... 52
12.2 Removing the motorcycle from the lift
stand ............................................................ 52
12.3 Bleeding the fork legs.................................. 52
12.4 Cleaning the dust boots of the fork legs..... 53
12.5 Removing the fork protector ...................... 53
12.6 Installing the fork protector........................ 54
12.7 Removing the fork legs ........................... 54
12.8 Installing the fork legs ............................. 55
12.9 Removing the lower triple clamp ............ 55
12.10 Installing the lower triple clamp ............. 56
12.11 Checking steering head bearing play.......... 58
12.12 Adjusting the steering head bearing
play .......................................................... 59
12.13 Lubricating the steering head bearing .... 60
12.14 Removing front fender................................ 60
12.15 Installing front fender ................................. 60
12.16 Removing the shock absorber ................ 61
12.17 Installing the shock absorber .................. 63
12.18 Removing the seat....................................... 64
12.19 Mounting the seat....................................... 65
12.20 Removing the air filter box cover................ 65
12.21 Installing the air filter box cover ................. 66
12.22 Removing the air filter ............................ 66
12.23 Installing the air filter .............................. 67
12.24 Cleaning the air filter and air filter
box ........................................................... 67
12.25 Preparing air filter box cover for
securing ................................................... 68
12.26 Removing the main silencer........................ 68
12.27 Installing the main silencer ......................... 69
12.28 Changing the glass fiber yarn filling of
the main silencer ..................................... 69
12.29 Removing the fuel tank ........................... 70
12.30 Installing the fuel tank ............................. 71
12.31 Checking the chain for dirt.......................... 73
12.32 Cleaning the chain....................................... 73
12.33 Checking the chain tension......................... 74
12.34 Adjusting the chain tension ........................ 74
12.35 Checking the chain, rear sprocket,
engine sprocket, and chain guide ............... 75
12.36 Checking the frame ................................. 78
12.37 Checking the link fork .............................. 78
12.38 Checking the throttle cable routing............ 78
12.39 Checking the rubber grip ............................ 79
12.40 Adjusting the basic position of the clutch
lever ............................................................. 79
12.41 Checking/correcting the fluid level of the
hydraulic clutch ........................................... 79
12.42 Changing the hydraulic clutch fluid ........ 80
13 BRAKE SYSTEM........................................................... 82
13.1 Checking the free travel of the hand
brake lever................................................... 82
13.2 Adjusting the basic position of the hand
brake lever (EC 300 US)............................... 82
13.3 Checking the brake discs............................. 82
13.4 Checking the front brake fluid level............ 83
13.5 Adding front brake fluid .......................... 83
13.6 Checking the front brake linings ................. 85
13.7 Changing the brake linings of the front
brake ........................................................ 85
13.8 Checking the free travel of foot brake
lever ............................................................. 87
13.9 Adjusting the basic position of the foot
brake lever ............................................... 88
13.10 Checking the rear brake fluid level ............. 88
13.11 Adding rear brake fluid ........................... 89
13.12 Checking the brake linings of the rear
brake............................................................ 90
13.13 Changing the rear brake linings .............. 90
14 WHEELS, TIRES........................................................... 93
14.1 Removing the front wheel ...................... 93
14.2 Installing the front wheel ........................ 94
14.3 Removing the rear wheel ........................ 94
14.4 Installing the rear wheel ......................... 95
14.5 Checking the tire condition......................... 97
14.6 Checking tire pressure................................. 97
14.7 Checking spoke tension............................... 98
15 ELECTRICAL SYSTEM .................................................. 99
15.1 Removing the 12-V battery ..................... 99
15.2 Installing the 12-V battery ................... 100
15.3 Charging the 12-V battery .................... 102
15.4 Changing main fuse.................................. 103