Honda Crf 250 M Manual
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Index157 accessories ...........................................................3 adjustments, altitude and temperature.............................122 carburetor ...................................................115 chassis ........................................................127 engine idle speed ..........................................48 for competition .............................................93 gearing ........................................................128 high altitude carburetor ..............................143 personal fit..................................................130 suspension, front ..........................................94 suspension, rear ..........................................107 suspension, track conditions.......................111 tire selection ...............................................129 after competition maintenance ..........................26 air cleaner ..........................................................43 air pressure, front suspension ...........................................94 tires ...............................................................81 American Honda, contacting...........................153 appearance care .................................................91 authorized manuals..........................................152 basic operation...................................................11 before riding ........................................................7 between motos & practice maintenance ...........26 brakes, fluid level .....................................................77 lever, front adjustment .................................76 pad wear .......................................................79 pedal height ..................................................76 break-in guidelines ............................................15capacity, fuel .....................................................34 carburetor, adjustment ..................................................115 circuit functions..........................................117 components.................................................115 disassembly/assembly ................................119 high altitude adjustment .............................143 idle speed......................................................48 minor adjustments ......................................124 care, appearance ................................................91 chain drive .........................................................83 chassis adjustment for track conditions ..........127 choke knob ........................................................13 cleaner, air .........................................................43 cleaning, appearance care .................................91 clutch system, adjustment .................................49 consumer information .....................................151 controls, operating ...............................................5 component locations,......................................6,28 maintenance..................................................28 operating controls...........................................6 competition logbook........................................145 contacting Honda ............................................153 controls, operating ...............................................5 coolant ...............................................................41 customer service ..............................................153 damping adjustments, front ..............................................................94 rear..............................................................108 dealer, your Honda ..........................................154 diagram, wiring ...............................................149 drive chain .........................................................83engine, flooded .........................................................13 idle speed......................................................48 number .......................................................138 oil .................................................................36 pinging .........................................................34 starting ..........................................................13 stop button ....................................................14 stopping ........................................................14 environment, protecting ..................................134 filter, air .................................................................43 oil .................................................................37 flooded engine, starting .....................................13 fork, front suspension adjustment.........................94 front suspension inspection ..........................71 oil recommendation......................................73 frame number ..................................................138 front brake lever adjustment .............................76 front suspension maintenance ...........................71 fuel, line ................................................................34 filter ..............................................................35 recommendation ...........................................34 refueling .......................................................34 system...........................................................34 oxygenated .................................................144 tank capacity ................................................34 valve .............................................................13 F E D C B A Index
158Index Index gap, spark plug ..................................................54 gasohol ............................................................144 gasoline..............................................................34 gearing .............................................................128 guidelines, suspension adjustment ..................112 handlebar inspection..........................................89 high altitude carburetor adjustment ................143 Honda, contacting ...................................................153 Rider’s Club ...............................................155 Service Manual ..........................................152 your dealer..................................................154 identification, vehicle ......................................138 idle speed, engine ..............................................48 inspection, pre·ride ..............................................9 labels, safety ........................................................4 locations, component......................................6,28 logbook, competition.......................................145maintenance, additional procedures ...................................89 after competition ..........................................26 before & after competition...........................26 between motos & practice............................26 general competition ......................................22 importance ....................................................18 safety ............................................................19 schedule ........................................................20 manual, service................................................152 modifications .......................................................3 oil, engine ...........................................................36 fork ...............................................................73 transmission .................................................39 operating, controls ...........................................................5 instructions ...................................................11 optional, parts list ......................................................147 sprockets.....................................................128 oxygenated fuels..............................................144 pads, brake.........................................................79 parts, optional ..................................................147 personal fit adjustments ..................................130 pinging, engine ..................................................34 plug, spark .........................................................54 pre-load, rear suspension.................................107 pre·ride inspection ...............................................9rear suspension maintenance.............................72 Rider’s Club Honda.........................................155 riding, basic operation .............................................11 before..............................................................7 important safety information..........................2 safety precautions...........................................2 safety, important information ....................................2 important precautions.....................................2 labels ..............................................................4 maintenance..................................................19 riding precautions...........................................2 schedule, maintenance.......................................20 serial numbers .................................................138 service, customer .....................................................153 manuals ......................................................152 spare parts........................................................148 spark knock .......................................................34 spark plug maintenance..................................................54 reading ........................................................126 specifications ...................................................139 spring pre-load, rear suspension .....................107 starting, engine ...........................................................13 troubleshooting...........................................135 steering stem inspection ....................................89 stopping engine .................................................14 storage .............................................................133 subframe ............................................................32 S R P O M L I H G
Index159 Index suspension, front .........................................................71,94 rear.........................................................72,107 suspension adjustment, front ..............................................................94 rear..............................................................107 for track conditions ....................................111 guidelines ...................................................112 transmission oil .................................................39 tuning tips ........................................................115 throttle, freeplay.........................................................46 inspection .....................................................47 tires, air pressure ...................................................81 flat ................................................................81 selection......................................................129 tools ...............................................................148 torque specifications........................................140 transporting......................................................132 troubleshooting ................................................135 tubes, replacing .................................................81 valve, fuel ..........................................................34 vehicle identification .......................................138 washing your motorcycle ..................................91 wheels ................................................................80 writing diagram ...............................................149 W V T
160Quick Reference The maintenance schedule (page 21) lists service frequencies for: each race or about 2.5 hours, every 3 races or about 7.5 hours, and every 9 races or about 22.5 hours every 12 races or about 30.0 hours Check the items listed on the Pre-Ride inspection checklist each time before you ride (page 9): unleaded gasoline, pump octane number of 91 or higher tank: 1.9 US gal (7.3R) Pro Honda GN4 or HP4 (without molybdenum additives) or HP4M (with molybdenum additives) 4-stroke oil, or an equivalent. Pro Honda HP Trans oil, Pro Honda GN4 or HP4 (without molybdem additives) 4-stroke oil, or an equivalent. Front: 80/100-21 51M, Rear: 100/90-19 57M Type: bias-ply, tube Front: 15 psi (100 kPa, 1.0kgf/cm 2)Rear: 15 psi (100 kPa, 1.0kgf/cm2) standard: R0409B-8 (NGK) optional: R0409B-9 (NGK) D.I.D. 520DMA2 Maintenance Pre-ride Inspection Fuel/Capacity Engine oil Transmission oil Tires Tire Pressure (cold) Spark Plug Drive Chain Quick Reference Record important information here: Frame No. Engine No. Owner’s: Name Address City/State Phone Dealer’s: Name Address City/State Phone Service Mgr. The following is a brief, but important collection of information you need to know about your Honda. You’ll also find space to record important notes. How To Avoid Costly Repairs The engine of your Honda can be the most expensive component to repair. Proper maintenance, especially the use of the recommended fluids and filters, prevents premature wear and damage. Frequent causes of costly engine repairs are: •Transmission oil & premix oil: insufficient quantity, improper oil. •Air cleaner: dirty, leaking because of improper installation (poor seal).