Thanks. I'm on it!!chrider,
You need to make a EDIT. You lift the LOWER chain run UP to just touch the rear tip of the rubber underslider.
If the chain can't touch the rubber, when one sets on the bike, the chain goes 'bow-string' tight. Which consumes HP.
Check tire pressures also. I recommend a minimum of 32 F / 30 R psi for highway usage.
And as others have suggested, check your engine oil level at least 3 times daily!