kzz1king wrote: No, mine would only run if sprayed in the cylinder or carb. It leaks so much there is no draw on the carb. At least I think it is crank seals.
Wayne
No draw on the carb at all? That could be rings too correct? I had some pull on the carb for sure. I put my hand over the carb to see if I could feel blow back from a stuck open reed valve and it was pulling for sure. But the thing kept running with the carb blocked off!
I printed out the crankcase, crankcase covers and crankshaft drawings from bikebandit. Looks like air can get in from the left side crank seal and oil from the right.
I had what looked like fresh oil dripping out from behind the dynamo on the left side after I ran it yesterday. From what I can tell that means the oil was sucked into the crankcase from the right, spun around a bit, and then some of it transfered to the combustion chamber and the rest of it blown out the left. I should have removed the oil fill cap to see if air was rushing in and out of the tranny case when running. That would for sure mean the right seal is bad. Then for the left side I'll have to see if that oil dripping out from under the dynamo has a hint of gasoline smell to it. I dont think there is another route for oil to get from one side of the engine to the other on the DT125 but I'm not for sure.
Oil being drawn into the engine from the right side could explain why it ran with the carb covered up. It was burning the oil being sucked in!
