Originally posted by Hawmps
Hey lt1s10,
I tried your idea of cutting the secondaries today and running on just the primaries and guess what... engine ran smooth as silk. I guess that eliminates any question about valves flosting, timing issues, etc. This tells me, and please let me know if you agree, that I am sucking air through the secondary jets. Let me know what you guys think?

Thanks
that tells you the problem is in the carb. it sounds like it getting all air and no gas, but it could be to much gas also. i think the carb. secd. is opening to soon and fluiding the motor. you think it lean, from here i cant tell. is the rear floats metal or cork?ive seen the cork floats get heavy with fuel and when you get into it they would sink, and when you get out of it they would come back up. maybe your'er way off on your rear jets and metering rods. i dont know what you got. except its in the carb. secondaries. if you clamp off your return hose from the reg. how much pressure do you have? if its not to much try that.