So i did breakin on the go sport 3 port today, so far have about 9 tanks on it, it started up with little hassle. basically did a modified breakin, 2 tanks on the box just to set the bearings in and then (so far) 7 tanks on the ground not exceeding 1/2 throttle(many of those tanks were 2 minutes at a time). ran out of gas twice (thing is drinking like dudley moore did booze in arthur) and at flame out it temped at 245 regular temps were in the 210- 230 range. carb is set at flush lsn and 2 hours in on the hsn. yeah it is smoking more than tommy chong used to.
Not going past 1/2 throttle i was putting semi consistant 31-32 second laps. the fastest out there were doing 28-30 second laps.
I am really digging it! running fox med glowplug and 25%/12.5% fuel and a 086 pipe.. even with the 7mm restricter in there runtime isnt all that great but i am sure it will improve as it runs in.