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Help ZDZ 80 blue head

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Old 08-22-2013, 07:49 AM
  #1  
mikes68charger
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Default Help ZDZ 80 blue head

Ok guys I'm loseing my mind.

This is my 2nd ZDZ so I know there dif to start.

Im putting this ZDZ80 Blue head on my new 50cc 81in GeeBee R3.


Im haveing major interverance issue with the throtel servo

I have 9 othere gassers so I'm going with the norm

I was useing a opto kill swich with its own 6.6 life battery and once I got the motor running it was ok but when I tried to power up the throtel servo would skip/jump all over the place makeing the motor to run odd

I have tried everything. Makeing sure no wires are touching the 4-40 rod that has plastic connectors and plastic servo arms. I tried 2 kill swiches, 2 diff servos. Hitec 422 plastic and hs 645 MG , I tried a regular on off swich with no connections to the reciver power system.

The only thing that works is if I plug the separate 6.6 life right into the ignition with no swich of any kind

i can't fly like this this motor to big not to have a electronic kill swich by TX

any ideals ?

it also has a spark plug cap unlike any I have seen.
Could it be the plug?

im using DX18 with AR7000

thanks mike
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Last edited by mikes68charger; 08-22-2013 at 07:55 AM.
Old 08-22-2013, 09:03 AM
  #2  
BadAzzMaxx
 
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You could have arcing inside the plug cap.

Try wrapping some tin foil tightly around the cap and a little ways down the plug wire and see if it does the same thing,

Milton
Old 08-22-2013, 09:29 AM
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mikes68charger
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Well I think it's fixed guys

i added a small green mag ring to the ign wire with 4 raps around the magnet

everything works. Kill swich to reciver and all. Humm
Old 08-22-2013, 10:59 AM
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irocbsa
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Hey Mike, good to hear the engine is up and running. When I ran it on my test stand I didn't have a servo hooked up to the throttle or I would have let you know about something like this. Anyway, glad the electrical "choke" fixed it.

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