Bought this '84 CH125 Elite last week with no known past history. It fires right up, but I think the gas might be a bit old. Anyway, to do some light maintenance. Before riding it, I changed the oil and spark plug. Got a fuel and air filter on the way but the air filter actually looks clean.
So I got it on the road to take it out after doing this, and it struggles to even go over 30mph. These should be capable of 55mph from what I know. Apart from this though, the thing seems to run great. Fires right up, idles great, and no stumbling. Wheels spin freely when up on kickstand as well...Any ideas?
I also put seafoam in and rode it around about 1/2 mile but still no difference...