Well.... I did not upjet and I'm at 70 on my chinese clone carb. When I say soft seize, I mean it starts okay with choke, warms up, runs very strong for about 3-5 minutes and then stalls. 30 seconds later it restarts but only good for about 1-2 minutes. I'm guessing that this is soft seizing. I have a 49cc head/cyl/piston ready to install and I think that I'm going this direction (stock), along with new crank seals, before I start modding. The only reason I didn't do the seals from the get-go is because the motor only has 700 miles on it. In fact, I haven't even considered the reed valves. What can I say, I'm from a four stroke world but I'm learning.
When you bypass oil injection, do you remove a gear to the pump? Or do you loop a hose?