How do you change the oil in a 2004 Suzuki boulevard c90?

Answer 1

I didn't know they made a boulevard in '04. I bought mine first model year 2005.

With the bike on it's side stand look underneath towards the back of the motor and you'll see a 14mm bolt. That's the drain plug. Put a basin underneath it and take the plug out. Buy an oil filter removal tool which basically fits over the end of the filter and you snap a 3/8 ratchet into it.

When the oil is drained out slide the pan under the filter and take the filter off. You might want to get a new crush gasket for the drain plug although it may not be imperative. The Suzuki oil filter I just bought had one in the box.

You may also want to put the drain plug back in before you move the basin.

Put some new oil around the top o-ring of the new filter and carefully spin it on. Tighten it as far as you can with your fingers.

Then use your wrench to snug it up. Be careful not to overtighten it. Fill it up with the new oil and when you are sure it's full (when the bike is straight up and down you can see it in the sight glass. It should be at the top line.

Start it and let it run for a bit and check for leaks.