Checking the slack in your dirt bike’s chain regularly is a crucial maintenance step. Maintaining the correct tension in the chain contributes to seamless gear shifts, minimizes wear on the drivetrain components, and helps avert possible harm to the engine.
Tools Needed
To measure chain slack on a dirt bike, you’ll need a few tools. Firstly, you’ll need a chain tensioner tool or a ruler. You’ll also need a torque wrench to tighten the chain if necessary.
Measuring Chain Slack
To measure chain slack on a dirt bike, follow these steps:
- Start by placing the bike on a stand or center stand.
- Shift into first gear and engage the clutch lever.
- Use the chain tensioner tool or ruler to measure the distance between the bottom of the chain and the bottom of the swingarm. The measurement should be taken at the center of the chain.
- The ideal chain slack measurement for a dirt bike is between 1/2 inch and 3/4 inch (12-19mm). If the measurement is outside of this range, you’ll need to adjust the chain tension.
Adjusting Chain Tension
If the chain slack measurement is outside of the ideal range, you’ll need to adjust the chain tension. Follow these steps:
- Loosen the rear axle nut and swingarm pivot bolt.
- Use a torque wrench to tighten the chain adjuster bolts until the chain slack measurement is within the ideal range.
- Tighten the rear axle nut and swingarm pivot bolt to the manufacturer’s recommended torque specification.
Conclusion
Measuring chain slack on a dirt bike is an important maintenance task that should be done regularly. By following these steps, you can ensure that your chain is properly tensioned and prevent potential damage to the engine.