Your Harley-Davidson Street Glide depends on three separate oil types to transfer power from the v-twin motor to the pavement: engine oil, primary oil and transmission oil. While changing the engine oil is a basic motorcycle maintenance skill, many new Harley-Davidson riders are often left in the dark when it comes to changing the primary oil. Fortunately, the process is fairly simple, requiring only a few tools and a minimal time investment.
Instructions
1. Locate the oil drain plug and place your oil catch basin below it. The plug is placed under the left side of the motor, just below the primary "derby" cover.
2. Remove the primary drain plug with a Torx 40 socket attached to a socket wrench and allow the primary oil to drain.
3. Inspect the primary drain plug o-ring for damage, replacing the o-ring if necessary. Wipe away any metal shavings that may be attached to the plug's magnetic tip with a clean rag. Set the drain plug aside.
4. Remove the primary inspection cover, which is a rectangular-shaped panel located just before the derby cover. Remove the gasket from the primary inspection cover and discard.
5. Replace the primary drain plug, tightening it snugly against the primary cover.
6. Add primary oil into the primary by pouring it through the primary inspection port. This will take a maximum of 1 quart of primary oil. Do not overfill.
7. Place a new gasket on the primary inspection cover before re-installing.
8. Wipe away any spilled oil and dispose of used primary oil properly.
Tags: drain plug, primary drain, primary inspection, inspection cover, primary drain plug, primary inspection cover
