Interference from ignition?
 

Hi all,

I have a ryobi 31 on ch ignition.

the battery for the ignition, switch, and ignition box itself is mounted right behind the firewall.

When the ignition is turned on, and the sensor passes over the pickup, my ailerons etc spaz out.

The only other thing right behind the firewall is the throttle servo. Everything else elsctronic is over 12 inches away from all this stuff, behind the wing (Fourstar 120).

My question is, do I need to move the throttle servo back 12 inches away? I thought I had other gassers where this servo was right up there with the motor...?

I just want advice before I go moving the servo needlessly.

Also, what is the number for the resistor plug for the Ryobi 31?

thanks!

Bill

RE: Interference from ignition?
 

The spark plug used should be of the resistor type (RDJ7Y or equivalent)

Move your servo back 12"

Twist all your wires on ignition and radio battery - servos, etc. Make them look like ropes.

Enjoy,

Jim

RE: Interference from ignition?
 

Go to Bill's website, he has all the info on what to check...
www.ch-ignitions.com

RE: Interference from ignition?
 

Do you have a rod connecting your servo to the carb? This often is a cause of radio interferance. I use Gold-N-Rod to connect the servo to the carb. Try this before moving your servo. I often mount my throttle servo behind the firewall to move weight forward.

RE: Interference from ignition?
 

Uhmm... why not disconnect the throttle servo and see if the system still glitches first??

Let us know.

AV8TOR

RE: Interference from ignition?
 

Well, sometimes it is the obvious thing.

I checked the spark plug, and I didn't see an R for resistor. I swapped the plug and the glitch is gone.

Thanks for all the advice!

Bill

RE: Interference from ignition?
 

DoH!!! ;)

Glad you got it fixed. Now go fly. I fired up another featherlite conversion yesterday.....25.00 25cc motor. Gotta love those conversions dont ya?

RE: Interference from ignition?
 

Doh! is right.

I thought I already had a resistor plug in it.

I may get to testfly this week. It is the SIG 120 bashed into an ME 109.

Should be sweet!

thanks

Bill

RE: Interference from ignition?
 

PICTURES!!!! I wanna see this! I want an ME109 (Someday).

RE: Interference from ignition?
 

here is the thread - plenty of pictures

http://www.rcuniverse.com/forum/m_38...tm.htm#3847401

RE: Interference from ignition?
 

Well Golly , aint that something.

When trouble shooting I always check the basics and the simple things first. 9 times out of 10 thats where the problem is.

RE: Interference from ignition?
 

It happened to me one time. I had converted a Homelite and it sat around the shop about 3 years before I used it. Hits weren't real bad but I was getting them. I didn't look at the plug because I had installed a resistor one when I converted the engine.

A friend come over and suggested about the plug and sure enough, it wasn't a resistor plug. I felt like a big dummy.

One of my sons must have swapped it out to use in a weed whacker or chainsaw?

Enjoy,

Jim