i have a 3.3 revo first off i have to have the tank full and use 2 8.4 volt batteries in the easy start before it starts takes forever to get going. I have to keep the throttle on all times or engine dies and then it still takes forever to start. when starting i see there is a gear moving by clutch bell i think but seems i have to keep priming the engine to the point of flooding i guess could this be a tuning issue. a friend says the engine has no compression but if it didn't i don't think it would ever start once it does start i find some fuel at exhaust outlet. if tuning is an issue where should i start with the needles hsn 4 turns from closed and lsn i not sure flush with something i read somewhere. and the transmitter is set at 50/50 i get more power at 70/30 where should i have this set at as i am new to nitro this truck i bought 2nd hand and had people look at it and they tinkered with settings but no one could get it to start. Fuel i using is blue thunder 20% bought back in 2012 could that be all my problems old fuel. sorry for rambling i am trying to just give as much information as possible and if in another forum i am sorry also thanks for any replys to help get this truck running right happy bashing