ORIGINAL: vti-chris
Yes it's a t2050 and a p6 plug(fresh).
The fuel is Red Max(clear color)30% nitro and 12% oil(fire and ice).
I already did that.the thing is that when i come from WOT to idle it revs up a little after 2-3sec,then drops at normal idle and doesn't seem to load up that easy even if i richen up.[:@].
I did turned the middle needle in about 2/8ths and it seemed to help a lot but i think it needs more "care".
That means its too lean on top usually... hanging on the pipe... it may be too lean in middle as well, but richening the main may help..
Like alex said, it could be the front bearing and an air leak like I said before... but equally the rear bearing can cause wear to the crankshaft/crankcase tolerances if its shot as well... this will then take out the front bearing...
look for signs of abrasion in the case where the inlet port is.... and around the section where the conrod big end rotates...
and check the bearing for up and down play....
