How to Change Suzuki C50 Boulevard Oil

Oil change service on a Suzuki motorcycle is the cornerstone of its basic maintenance plan. Changing the oil on a Suzuki C50 Boulevard is about as straightforward as it gets. 

Watch the video above and follow the steps below to do an oil change on a Suzuki Boulevard C50 motorcycle.

Suzuki Boulevard C50 motorcycle oil change

Tools and Supplies - Suzuki C50 Boulevard Oil Change

Suzuki Ecstar 10W-40 engine oil

Buy Suzuki motorcycle oil filter

Changing the Oil on a Suzuki Boulevard C50

Step 1. Crank up the engine for a couple of minutes to warm the oil up, which helps it drain out easier.  

Step 2. Open the oil fill cap to allow air into the crankcase, which also makes it easier to drain the oil. 

Suzuki Boulevard C50 oil change

Step 3. Have a drain pan ready and use a 14mm socket to remove the oil drain bolt underneath the motorcycle. Drain out the oil, then replace the drain bolt and torque it to 16.5 foot-pounds.

Suzuki Boulevard C50 oil change service

NOTE: The drain bolt has a crush washer on it, so make sure you don’t lose it.

Suzuki motorcycle oil change service

Step 4. Use a 65mm oil filter wrench to remove the old oil filter. 

Suzuki C50 motorcycle oil change filter

NOTE: Have a drain pan ready for any oil that spills out while removing the old filter.

Step 5. Smear a little oil around the new filter’s gasket with your finger to help seal the filter to the engine. 

Suzuki Boulevard C50 oil filter change

PRO TIP: This step also makes the filter easier to remove for the next oil service. 

Step 6. Install the new oil filter and torque it to 14.5 foot-pounds. 

Suzuki Boulevard C50 oil filter installation

Step 7. Fill the engine with 3.6 quarts of 10W-40 oil at the fill cap opening. 

Suzuki motorcycle oil change service Ecstar

NOTE: We used Ecstar 10W-40 oil, but you can use a different oil as long as it’s designed for a wet clutch system.

Step 8. Replace the fill cap, run the engine for a couple of minutes to circulate the oil, and then stop the engine and check the level. 

Suzuki Boulevard C50 motorcycle oil change

The oil level on the C50 should be on the upper end of the normal range, shown as two lines to the left of the sight glass. Top off the oil level if necessary and you’re done.

Suzuki C50 oil change fill level