50CC FUGI EI  
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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Gas Engines >> 50CC FUGI EI
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50CC FUGI EI - 7/22/2008 4:33:52 AM   
thomasshields


 

Posts: 11
Joined: 4/10/2007
From: satsuma, AL, USA
Status: offline 		GOT BAD INTERFERENCE WITH ENGINE AT SLOW SPEED MAKES ELEV. RUDDER, AND ALIRONS SHAKE UP DOWN BACK AND FORTH. WHEN ENGINE STOPS PROBLEM GOES AWAY. IV USED JR 72 MH WITH 8103 SPECTRUM 2.4 WITH R7000 FUTABA 4 CHANNEL SAME PROBLEM WITH ALL THESE. MOTOR IS IN A YAK 54 25 % ANYBODY NO OF SOME TYPW OF FILTERS I COULD USE ON THE IGNITION IVE HAD THIS PROBLEM SINCE I BOUTHT THIS PLANE USED AND STARTING TO GET TIRED OF FOOLING WITH IT ABOUT READY TO PART IT OUT
       Post #: 1

RE: 50CC FUGI EI - 7/22/2008 3:18:16 PM   
Bax


 

Posts: 12457
Joined: 4/26/2002
From: Champaign, IL, USA
Status: offline 		If it only happens at low speed, you likely don't have ignition interference. Ignition interference would happen at all RPM levels. We'd suggest that the difficulty may be located elsewhere. However, you can send the engine to the service center to be checked out. If the ignition system is bad, the warranty should cover it.

_____________________________

Bill Baxter, Manager Hobby Services/Futaba Service/North America
3002 N. Apollo Dr. Ste. 1 Champaign, IL 61822 USA
Service Phone: 217 398-0007
Email: hobbyservices@hobbico.com

(in reply to thomasshields)
       Post #: 2

RE: 50CC FUGI EI - 7/22/2008 3:19:27 PM   
larry@coyotenet


 

Posts: 199
Joined: 2/25/2003
From: pueblo, CO, USA
Status: offline 		Biggest problem with ei engines is that lots of guys won't put enough distance between the ignition and the radio. A good rule of thumb is 10-12 inches between anything attached to the engine and anything attached to the radio. This includes switches, batteries, leads, servos
etc. The thing that constantly causes problems is that you may get away with it for a while before it bites your behind. Seen it happen again and again. Different ignitions and even different individual units of the same ignition act differently. Another common problem I have seen in aerobatic type planes is the use of metal push pull wires with the radio antenna running in line and parallel to the wires.
Again, you may get away with it for awhile but!!!

Larry

(in reply to thomasshields)
       Post #: 3

RE: 50CC FUGI EI - 7/23/2008 2:39:54 PM   
mrbigg



Posts: 2839
Joined: 10/30/2004
From: Streator, IL, USA
Status: offline 		Did you check for loose bolts with washers that could be vibrating and causing glitches?

_____________________________

PROVERBS 15:22 - Plans go wrong for lack of advice; many counselors bring success.

(in reply to larry@coyotenet)
       Post #: 4

RE: 50CC FUGI EI - 7/23/2008 11:27:32 PM   
thomasshields


 

Posts: 11
Joined: 4/10/2007
From: satsuma, AL, USA
Status: offline 		no loose bolts but does seem to virbrate prop may be out of bal

(in reply to mrbigg)
       Post #: 5

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