Originally posted by pttf
ok i think i found the problem. I noticed when the engine is running there are bubbles in the fuel line which are not moving. So i gather there is lack of compression somewhere. So this should narrow the problem which is causing the engine to run high. Any suggestion's
That could also be a sign of BOTH the LS too lean and also the HIGH end.. Mine is all broken in, the LS is like 6 turns out, perfect responce! the HS is 3 turns out, and it is getting 37000 rpm. probably needs more time to get the 40000 rpm.. Rule of thumb! rich is Nice Lean is poor! best to run it rich than lean. it it sounds like lean is your problem.. What percent oil/nitro fuel you using? I was using 20% nitro and 12% oil. engine seemed to like it! ALSO! did you take the baffle out of your pipe? if so? put it back in for the back pressure and also pressure for fuel tank.