Welcome to the Ultimate Gas Heli Setup Page
The purpose of this page is to help you setup a gas heli to run smooth and consistent without burning up an engine, or having EXPERIENCED GAS HELI HELP nearby.............
Electronics :
The stuff below is important, gas helis are more susceptible to glitching and lock outs because of the spark ignition.
Receiver:
SPCM works best, it rejects ignition noise more than an FM receiver will. The ignition in a gas heli creates a lot of rf "splatter". End result is glitching or even worse..."Lockouts".
Antenna :
I have always used a Revolution or Deans Whip brand, a stock 39 inch wire will pick up too much "noise" from the ignition of the engine. I have seen stock "wire" used but I don't believe they are as efficient as a whip due purely to the ability to pick up interfering signals. (Note: I have never had a gasser lockout or glitch,unless I made it do so for experimental purposes).....
Spark Plug:
I have always used a NGK BMR7A. We tried Bosch platinums,Champions,Motorcrafts, A/C Delco and have had nothing but poor results,you can usually see it in the tail of the heli as a fast "wag",or new glitching will occur, the NGK plugs always worked best, hands down,theyre available thru PEP Boys Auto Stores, or thru any NGK Dealer last time I bought plugs they were 20 bucks for a box of 10,hobby shops get 5 dollars and up for em........
Ground the receiver:
I make a ground wire out of 14ga insulated wire, with a SOLDERED ring terminal on one end, and I use a 3 wire female servo plug on the other end. I connect the opposite end of the wire that gets the plug to the black or brown wire coming out of the plug, snip the other 2 off. Plug your new ground plug into any open channel on the rcvr, attach the ring terminal to any bolt going into the engine, one of the screws that goes thru the pull start housing will even work. This grounds the receiver, it works, it doesn't hurt anything, it may SAVE your machine.
More to come..........