rob, I run a return line from my canister back into the block on my flathead Tecumseh. it's always puking oil at 7000+ rpm's . on my clone I do the same,but that one never pukes oil. even at 8000 rpm's not sure why some people set up there can's without a return. kind of like having a death wish by trapping most of your oil so it can not return as your engine is spinning 7-8000+ rpm's. I also try to keep the canister higher then the engine. this way to gravity keeps thing down(oil). just make my canister out of pvc material and purchase a small breather that mounts on top.
no expect at this....just a gear head.
Well my dragbike runs on methanol. So every single time i start the engine, i change the oil and drain the carb flush it out with gas and 2 sroke oil.
Every
Single
Time
Whether it’s just idling or not. Every time I start it, I know that I have drop the oil and flush out the carb.
I use Lucas Jr Drag oil, 12oz is just about right.
The motor is going to puke what it’s going to puke, the engine will have a sweet spot where it pukes out only a tiny bit.
That’s where I’m at, and I just drain the tiny bit from the puke tank and dispose of it with the rest of the waste oil.
I can’t use the oil again anyways lol