ORIGINAL: Dlvsm
Hello and thank you to anyone that can help.
i have completed my first gas build and it is a treehopper and I have installed a DLE 30 with Walbro carb and electric ignition. Yes I an a noob[img][/img]
I am using a Spektrum DX7 with spektum AR8000 received
I have the throttle servo mounted right behind the firewall. The Electric ignition is about 3 to 4 inches away and under the plywood that supports the servos and fuel tank and about 8 inches away from the recieved that is in the back section. I do have the recieved close to the battery but I do not think this is a issue as none of the other servos jitter or move. See picture below. The ign wire does run out the firewall next to the throttle servo and the throttle servo wire i have run above the plywood and as far to the other side as possible. It is next to some of the kill switch wires but not touching. I can start the engine and keep it at idle but if i give it any throttle it wants to jump to full throttle and back down or it kind of jitters around unless i keep it at the lowest thottle settings.
So where and I going wrong? I have tried to mess with some of the wires to see if one of them in the back makes it worse or better but so far no luck. I have thought to move the thottle servo back behind the gas tanks and move this up but it will still be about the same distance away from the ignition but it would get it away from the ign wire. Anyone have better ideas? Or should i just put in a huge electric motor and not fool with the gas? [img][/img]
Dlvsm<br type=''_moz'' />
i've been flying gas for many years and i don't think you problem is the setup . you said that the throttle goes full and then glitches at times. if the ignition was affecting your radio i would think that it would effect all the channels i'm wondering if you have a bad servo being affected by vibration. having the servo that close to the carb i would think would allow a lot of vibration to find it's way to the servo. From what i was told, RF from ignition systems and from metal to metal is pretty much a thing of the past with 2.4 . As a rule in old school setups ..you want to keep the receiver as far as possible from the ignition . that includes the ignition batteries as RF can travel back to the batteries. hope this helps And BTW.. don't let anyone tell you that starting out on gas is a bad thing. an engine is an engine. each has a preferred way of being tuned. i can tell you once you set a gas burner you don't have to keep screwing with it like a glow.