Reply one, Yes and no. On the JDE F-8 with the os 91 yes. I have a BVM mixture. On my Byron Mig 15 with a os 91 no. And on my Byron Bullet with a k&b .82, no.

Reply two, I think your right. I am using the small fuel tubing. I dont know the size but its the standard stuff for .20 and .40 c.i. I will step up to the larger size.

The k&b has a much smaller bore carb and this has not been an issue with the engine. But, the O.S. has a huge carb and it is.

Thanks,

Josh K