Bike smokes when
Hey Alan, you did'nt say what mileage but i suspect high mileage on a 1980 bike. A compression test is easy on a 2 cylinder and will probably result in a low reading on the side that smokes. Also the chke could be closing tighter on the carb on the smokey side causing too much fuel to enter and also cause smoking....The short time you need to choke a bike in summer is a small price to pay on a bike that old...so ride and enjoy, you're not damaging anything by riding it that way...by the way, i love those old Yammer 650s...Good Luck to you friend.....Tim
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