Hi. I'm a newbie who just inherited a 1974 MT 250 Elsinore. It hasd been sitting for an undertermined amount of time and initially only ran for a few seconds with a shot of starter fluid. Previous owner said it had developed a rattle, so he parked it.
I pulled the air box and the carb. Gave the carb a good squirt-out and basic disassembly/cleaning with some carb cleaner. Mixed some new gas (the oil injection system had been removed) and eventually got it to idle between 2500 and 3000 rpm with the choke on. (I'm assuming that the choke is "on" when the lever is flipped to the down position. I suppose I should mention that this was with the air box off the bike and the carb open to the air. The bike never did start without the assistance of some starter fluid.
When I flipped the choke lever up the engine almost immediately raced to about 6000 or redline. I tried this a few times with the same results.
I'm completely new to to 2-strokes, so I'm lost as last year's easter egg.
I also don't know whether it's worth mentioning that the exhaust pipe doesn't seem to be seated well on the cylinder. I'm getting some exhaust blowing past that connection. The pipe also has a crack in it.
Thanks to any and all who respond. My education has to start somewhere.
Adam
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