hey guys motor was rebuilt 28 hours ago the motor ran great for 20 of those hours it surges from idle to 1/4 throttle. if I put a crazy fat PJ 65 then it almost goes away. the bike runs great with the choke on done a leak down test and it does not show anything checked crank seals swapped carbs with another great running bike so its not a plugged PJ or anything done compression check. 190 psi no leaks of coolant or tranny oil I have sprayed the entire motor area with starter fluid and no changes. took the bike to a shop and they did the same tests. the shop wants to spilt the cases to look round inside.. with the bike running better with a crazy fat PJ 65 .... and or with the choke on ,,, it would scream air leak or lean. anyone ever had this before??????????????