Harley-Davidson XLH SPORTSTER 1998 Service Manual
![Harley-Davidson XLH SPORTSTER 1998 Motorcycle manual cover](/images/bfnPUYNQUjiiBDjgiymiNJpw/thumbs/thumb175x175.webp)
The recommended oil type for a 1998 Harley-Davidson XLH Sportster is 20W-50 V-Twin synthetic motorcycle oil.
Oil should be changed every 5,000 miles or once a year, whichever comes first, on a 1998 XLH Sportster.
The front tire should be inflated to 30 psi and the rear tire to 36 psi for optimal performance.
Check the battery voltage, ensure the kill switch is in the 'run' position, inspect the starter relay and fuses, and verify the fuel supply.
To adjust the clutch, loosen the cable adjuster, remove the derby cover, turn the adjuster screw counterclockwise until lightly seated, then turn it back 1/4 turn, and finally adjust the cable slack.
Inspect the drive belt for signs of wear or damage every 5,000 miles and ensure proper tension using a belt tension gauge.
The recommended spark plug gap for a 1998 XLH Sportster is 0.038 to 0.043 inches.
Regular maintenance such as keeping the air filter clean, ensuring proper tire pressure, and using the correct grade of fuel can improve fuel efficiency.
Common signs include dim headlights, slow cranking, a clicking sound when starting, and the battery losing charge quickly.
Regularly wash and dry the bike, apply a quality wax, store it in a dry place, and use anti-rust spray on exposed metal parts to prevent rust.