Honda CRF450RS 2022 Competition Handbook
![Honda CRF450RS 2022 Motorcycle manual cover](/images/vQqUZVtYiLoLAygTclPDbRCe/thumbs/thumb175x175.webp)
The recommended engine oil for the Honda CRF450RS 2022 is Honda GN4 10W-30 or equivalent, which meets or exceeds the API service classification of SG or higher.
The air filter should be inspected and cleaned after every race or every 15 hours of riding in normal conditions. Replace it if it's damaged or excessively dirty.
To adjust the chain tension, ensure the motorcycle is on a stand with the rear wheel off the ground. Measure the slack midway along the chain, and adjust it to 1.2-1.6 inches (30-40 mm).
If your CRF450RS 2022 won't start, check the fuel supply, verify that the kill switch is set to 'run', inspect the spark plug, and ensure the battery is charged.
For off-road riding, adjust the suspension by softening the compression and rebound settings to better absorb rough terrain. Refer to the owner's manual for specific adjustment procedures.
To check the coolant level, ensure the engine is cool, and remove the radiator cap. The coolant should be at the base of the filler neck. Refill with a 50/50 mixture of coolant and distilled water if necessary.
Regularly inspect the brake pads for wear and replace them if the pad material is less than 2 mm thick. Also, check the brake fluid level and bleed the system if needed to remove air bubbles.
For the CRF450RS 2022, the recommended tire pressure is 15 psi (103 kPa) for both the front and rear tires under normal conditions. Adjust based on terrain and load.
To check and adjust the valve clearance, remove the valve cover and use a feeler gauge to measure the gap between the valve tip and the rocker arm. Adjust as necessary to maintain the specified clearance found in the service manual.
Common signs of a failing clutch include difficulty shifting gears, a slipping clutch during acceleration, and a spongy or sticky clutch lever. Inspect and replace the clutch plates if necessary.