So last nite i went to run my arena tr after supper and made it about 25 ft. after it fired and blaahhhh. died-so no big deal grabbed my glow igniter and went to pull the cord-stuck-hmmm? pulled harder-nothin-hmmmmm? so i took it in the house and tore it down only to find pieces of metal and alum. in my case-now the piston and sleeve looked fine and i cleaned every thing an deburred the sharp edges and put in a fresh plug and it fired after the first pull-didn't run great and soon stalled and fouled the plug-my ? is now what the engine only has 12 or so tanks through and has never gotten hot I just dont really know what to do-pretty new to nitro-CEN tech support please help!!

Contact CEN, mine is a POS too. The motors are like the old 2.5's!

well thanks for the reply, I am by no means saying anything is junk-i have little experience with nitro and at first it ran fine-well any way i switched fuel and plugs and the engine ran great today-in my own opinion it made good power-that is until i ran head long into a tree and broke the right front lower suspension arm-on order-CEN please ship fast cuz this thing ran great today and i had a great time running it-now as far as fuel goes i was runnin traxxas 33%-not knocking their fuel-just didnt seem to work for me-swithed to mc59 plugs and trinity 20% monster blend and it ran great-u guys probably think what an ameture-but none the less it worked for me-just my 2 cents

yea send it to cen cause thats not right and good thing CEN racing is so nice they might let it slide now that you have tooken it apart yourself
but send it in