
Check their oil
Checking and changing Sportster Trans/Primary Oil and Big Twin Primary Oil
*The Transmission and Primary shares the same quart of oil on the Sportster
Inspect Harley transmission oil by locating the dipstick, standing the bike upright, and checking the level between two marks; includes M8 softail and bagger dipstick locations.
Checking Oil On Metric Bikes
When you first get a bike, check the oil every 200 miles. That way if your bike burns oil, or has a discrete leak, you will be aware of it. After a few thousand miles, you will have a good idea about your bikes oil consumption. It's still good to check it every 1000 miles or so.
● Refer to your owners manual for the exact procedure for your bike. *You can usually find these online Some manufacturers even have them posted on their websites
● Check the oil with the bike turned off. Some manufacturers recommend you run the bike for a few seconds, then turn it off before you check the oil.
● If you have a dipstick, or are planning on adding oil; wipe the dirt off from around the cap first. Most bikes have a dipstick or a sight glass for checking oil.
● Most metric bikes are designed to have the oil checked while straight up in the air. If you don't have a center stand, this can be tricky. If you are not comfortable with holding the bike and looking, it may be best to ask a friend.
● Once you have the bike in position, inspect the sight glass for the oil level to rise. The oil level should stabilize in the middle to upper ¾ of the sight glass. Give it a few seconds, because sometime this is slow, and you want to make sure it has not been over filled. *after you change the oil, the bike will show it being overfilled, until it has been started once.
● If you have a dipstick, remove it, wipe the oil off with a clean, lint free rag. Reinsert the dip stick, then remove again, and check the oil to the marks on the dipstick. − Remember, the moving parts of your motor have a clearance of as little as .0005 of an inch. 1/6th of a human hair. Even small amounts of dirt can be catastrophic to your motor.
Check oil on a modern gsxr with sight glass, keeping it between the low and high marks; if marks are unavailable, aim for half to three-quarters with the bike upright.
Learn how to install and tighten motorcycle oil filters correctly, using oil on the seal, rotating three quarters after contact, and disposing of used filters safely.
Choose engine oil weight from 10w-40 to 20w-50 based on climate and riding conditions, and use full synthetic except for engine break-in with conventional oil.
Learn to change a Sportster’s engine oil by warming the oil, draining via the hose, and removing the oil filter with lefty loosey, while avoiding front mount spills.
Remove the transmission drain plug with a 5/8 socket, catch the draining oil, inspect the magnet for shavings, clean, torque to 14–21 ft-lbs, replace the o-ring, and reinstall.
You should replace your tires after 6-7 years of life.
You should run 75-90% of the max psi listed on the side of your tires.
Understand cupping or dishing as wear from low tire pressure, producing a sawtooth pattern under braking. If severe, replace tires; otherwise inflate to proper pressure and monitor.
Inspect the chain tension
Learn to align and tension your motorcycle chain to about 2% of the center-to-center distance, keeping it aligned and floating on a grease film.
learn how to inspect belt tension on belt-drive motorcycles using a half-inch deflection at 10 pounds of force, or a belt tensioning gauge, and assess wear and alignment.
Learn how to check and adjust belt tension on belt-drive motorcycles like Harley sportsters, using a half inch of deflection for £10 of force, with a gauge or fingertip method.
Align the rear wheel of the m8 softail by adjusting the axle and adjuster bolt, measure from center line to the flat surface within 1/64 inch to prevent Harley wobble.
Inspect the drum brake on a motorcycle by checking the brake shoe thickness at about 40 thousandths of an inch, inspect springs, and adjust tension for proper drum contact.
Replace motorcycle spark plugs using a 3/8 inch ratchet and 5/8 spark plug socket, check gaps with a spark plug gapping gauge, oil threads, torque to spec, and dielectric grease.
Use a dc voltmeter to test battery voltage at rest and while the engine runs; note 12.8 V with a trickle charger and 12.2–12.3 V when running, indicating no charging.
Twist rear preload lug on the shocks to compress spring. Equalize sides on twin shocks, unload suspension, and adjust for rider weight; use rag under tools to avoid marring.
If you're new to motorcycle maintenance, this online class is ideal for you. The class covers a comprehensive range of essential motorcycle maintenance topics.
First, you'll learn how to check the oil on both metric motorcycles (Japanese and European brands) and American motorcycles, specifically Harley-Davidsons. After mastering the oil check process, we'll move on to changing the oil for both types of motorcycles. Following oil maintenance, we'll cover air filter checks and replacements.
Next, we'll dive into brake maintenance, including inspecting disk brakes, an overview of pad replacement, and inspecting and replacing brake shoes. We'll also discuss the different types of brake pads available. Clutch functionality and adjustment will be another key topic, ensuring you understand how your clutch works and how to keep it in top condition.
Tire maintenance will be thoroughly covered, including identifying wear marks, understanding replacement intervals, and decoding the numbers on the sidewalls. We'll also address chain wear and alignment for metric motorcycles and drive belt wear and alignment for Harley-Davidsons.
Spark plug maintenance is crucial, so we'll cover how to gap and replace them. Additionally, we'll discuss battery service and replacement, and provide an overview of the charging system basics. Basic lighting and turn signal repair will also be addressed.
Fork seal inspection, winter storage, and spring service procedures will be discussed to ensure your motorcycle is ready for all seasons.