One cylinder runs hard, front, rear not as hard.
A few days ago, a day before my 18th birthday I went out and picked up a 1986 Vulcan 750. Not to bad of shape. Fired it up last night, and the rear cylinder feels weak, like when I rev it up and put my hand behind the front cylinder exhaust, it moves my hand back with authority and gets hot, while the rear cylinder feels weak and is nowhere near as warm, but it is still running. Could this be a faulty plug, carburetor, or is the rear cylinder not getting enough air? Thanks in advance