How do I check the coolant on my 2005 Boulevard?

The coolant reservior is behind the left side crank case cover. Low on the crank case cover is a viewing port. Using a flashlight, you can see the level of coolant in the reservior. If you need to add coolant or check its potency, you will need to remove the cover. Remove the bolts holding the cover in place and then remove the cover itself.

If you need to add coolant, you will need a coolant that is compatible for use in an aluminum radiator. Read the the coolant container lable carefully; the wrong type, especially alcohol based coolant will destroy the aluminum radiator. A 50/50 mix of coolant and distilled water should be used if you need to add any.

If you just need to check the potency of the coolant you can pick up a hygrometer at an auto parts store or one of those "big box" stores.