download
Before Riding 9 Is Y our Motorcycle Ready to Ride? Competitive riding can be tough on a motorcycle, so it’s important to inspect your CRF and correct any problems you find before each ride. Check the following items (page numbers are at the right): Pre-ride Inspection Check the following before each ride: • Engine oil level ……………. ……………. ………….37 •T ransmission oil level……….. ……………. ……..40 • Coolant for proper level……….. ……………. …..41 • Cooling system and hoses for condition……. 42 • Spark plug for proper heat range, carbon fouling and high tension cord terminal for looseness ……………. ……………. ……………. …….55 • Air cleaner for condition and contamination… ……………. ……………. ………….43 • Clutch lever adjustment and freeplay ………..49 • Hot start lever freeplay ……………. ……………. .54 • Breather drain for cleaning ……………. ………..45 • Steering head bearing and related parts for condition……. ……………. ……………. ………..91 • Carburetor throttle operation ……………. ……..47 •T yres for damage or improper inflation pressure ……………. ……………. ……………. ……..82 • Spokes for looseness……. ……………. …………..81 • Rim locks for looseness……. ……………. ………81 • Front and rear suspension for proper operation ……………. ……………. ……………. .72, 73 • Front and rear brakes, check operation ……..77 • Drive chain for correct slack and adequate lubrication ……………. ……………. ……………. …..84 • Drive chain guide, sliders and drive chain rollers for damage or wear……… ………….84, 85 • Exhaust pipe/Muffler inspection…… ………….87 • Steering damper operation inspection ……….91 • Every possible part for looseness (such as cylinder head nuts, engine mounting bolts/nuts, axle nuts, handlebar holder bolts, fork bridge pinch bolts, drive chain adjuster, drive chain guide, wire harness connectors, kickstarter mounting bolt) ……………. 148 -

download
Always follow the proper starting procedure described below. Your motorcycle can be kickstarted wirh the transmission in gear by pulling in the clutch lever before operating the kickstarter. Preparation Make sure that the transmission is in neutral. Turn the fuel valve ON. Fuel Valve Starting Procedure Always follow the proper starting procedure described as follow. 4. Warm up the engine; don’t operate the throttle. 5. About 15 seconds after the engine startes, push the choke knob back all the way to fully OFF. If idling is unstable, open the throttle slightly. Extended use of the choke may impair piston and cylinder wall lubrication and damage the engine. High Air Temperature 35°C (95°F) or above 1. Do not use the choke. 2. Keep the throttle fully closed. 3. Start the engine following step 3 under Normal Air Temperature. Low Air Temperature 10°C (50°) or below 1. Follow steps 1-4 under Normal Air Temperature. 2. Continue warming up the engine until it runs smoothly and responds to the throttle when the choke knob is pushed back all the way to fully OFF. Extended use of the choke may impair piston and cylinder wall lubrication and damage the engine. Hot Engine Starting 1. Pull the hot start lever (3) and start the engine following step 3 under Normal Air Temperature. 2. As soon as the engine starts, release the hot start lever. NOTICE NOTICE Basic Operating Instructions 15 (1) fuel valve The three-way fuel valve is used to control the flow of fuel from the fuel tank to the carburetor. ON -Turning the fuel valve ON before attempting to start the engine allows fuel to flow from the fuel tank to the carburetor. OFF -Turning the fuel valve OFF after stopping the engine prevents the flow of fuel from the fuel tank to the carburetor. RES -Turning the fuel valve to RES allows fuel to flow from the reserve fuel supply to the carburetor. (1) fuel valve (2) choke knob Check the engine oil, transmission oil and coolant levels before starting the engine (pages 44,47,48). To restart a warm engine, follow the procedure for ”High Air Temperature. ” Normal Air Temperature 10°C-35°C (50°F-95°F) 1. Pull the choke knob (2) up all the way to fully ON, if the engine is cold. 2. Keep the throttle fully closed. 3. Pull the clutch lever all the way in, and press the starter button with the throttle completely closed. Or operate the kickstarter to start the engine. Starting from the top of the stroke, kick through to the bottom with a rapid, continuous motion. Do not operate the throttle. Allowing the kickstarter to snap back freely against the pedal stop can damage the engine case.