Comprehensive Maintenance Schedule for the Kawasaki Vulcan S Motorcycle
The Kawasaki Vulcan S is a cruiser-style motorcycle first introduced in 2015. Known as the EN650 in some markets, the Vulcan S combines a sporty 649cc parallel-twin engine derived from the Ninja 650 with relaxed cruiser ergonomics and unique Ergo-Fit adjustability to suit a wide range of riders.
Why Riders Love the Kawasaki Vulcan S
Sporty Handling and Performance: The 649cc parallel-twin engine offers strong performance.
What is the recommended engine oil for the Vulcan S?
Use 10W-40 motorcycle oil meeting API SG, SH, SJ, SL or SM standards with JASO MA, MA1 or MA2 rating. Kawasaki recommends their own brand, but any oil meeting those specifications can be used.
How often should I change the oil on my Vulcan S?
Kawasaki recommends changing the engine oil and filter every 7500 miles (12000 km) or annually, whichever comes first.
Can I adjust the valves myself or do I need to take it to a dealer?
Checking and adjusting valve clearance requires removing the camshaft cover and precisely measuring clearances with a feeler gauge. While it can be done at home, it requires mechanical skill. Many owners prefer to have a Kawasaki dealer perform valve adjustments.
What is the difference between DOT3 and DOT4 brake fluid? Can I use DOT3 in my Vulcan S?
DOT4 brake fluid has a higher boiling point than DOT3. Kawasaki specifies DOT4 fluid for the Vulcan S, so that is what should be used. Using a lower-spec fluid could result in brake fade under hard use.
My chain seems loose. How can I adjust it?
Chain slack should be 1.2-1.6 in (30-40 mm) with the bike on its side stand. Loosen the rear axle nut, turn the adjusters evenly on both sides until the proper slack is reached, then torque the axle nut to spec (65 lb-ft).
What are the symptoms of worn brake pads?
Squealing or screeching noises, increased lever travel, visible wear indicator marks on the pads, or a pulsing sensation in the lever can all indicate worn pads that need replacement.
How much does a typical Vulcan S service cost?
Prices vary, but expect to pay around $200-300 for an oil change/inspection service, and $500+ for a major service with valve adjustment. Doing some tasks yourself can save labor costs.
Do I need any special tools to work on my Vulcan S?
A rear stand, oil filter wrench, chain slack gauge, torque wrenches, and feeler gauges are helpful for common maintenance tasks. A factory service manual is also highly recommended.
Can I use aftermarket parts or do I have to stick with Kawasaki parts?
Aftermarket parts are generally fine as long as they are high quality and designed for your specific bike. Avoid cheap knockoffs. Using genuine Kawasaki parts ensures compatibility and may be required to maintain warranty coverage.
I’m hearing a rattling noise from the engine. What could it be?
A rattling noise at idle that goes away with revs could indicate a loose cam chain tensioner. Have a mechanic check the cam chain tension and adjust as needed. Don’t ignore it as a loose chain can cause engine damage.