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HomeAircraftHelicopterGasser Model RC HelicoptersOther › Radikal carb problem i think???????
04-10-2010 04:32 PM  8 years agoPost 1
ashleyk

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south wales

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Hi All,

Put a few tanks of fuel through radikal now until today a problem accured, needle settings with stack on carb low 1 3/8 and high 1 1/2
the problem i've got is when tank is full engine runs really rich, half way through tank radikal flies fine on song, now when it reaches near the end of the tank engine miss fires and stops, we been on this now all day down the flying club with no joy. when i altered the setting to lean this out on a full tank same again engine justs cut out......

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04-10-2010 06:30 PM  8 years agoPost 2
shawmcky

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Isle of Wight,United Kingdom

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Just a thought
Does the tank have a vent,is it clear.

Team- unbiased opinion.K.I.S.S principle upheld here

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04-11-2010 01:11 AM  8 years agoPost 3
ashleyk

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south wales

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Yes vent is clear no obstruction

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04-11-2010 04:53 AM  8 years agoPost 4
Billme

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MS

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what type pick up clunk are you using?

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04-11-2010 08:19 AM  8 years agoPost 5
ashleyk

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south wales

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just a felt clunk.

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04-11-2010 09:07 AM  8 years agoPost 6
shawmcky

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Isle of Wight,United Kingdom

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Fuel return
If your carb has a return pipe is the fuel being cycled back through it ok?

Team- unbiased opinion.K.I.S.S principle upheld here

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04-11-2010 09:25 AM  8 years agoPost 7
ashleyk

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south wales

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Hi carb has no return pipe

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04-11-2010 09:45 PM  8 years agoPost 8
ashleyk

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south wales

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Hi all,

Flew the radikal today still having same problems, filled tank to 3/4 full started fine hovered about 7 mins engine running slightly rich noticed engine leaning out slightly then engine misfires once and stops, landed felt engine only warm to touch, left heli for a few mins started again hovered this time for around 9 mins same thing again landed. now completely stumped.....

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04-12-2010 04:10 AM  8 years agoPost 9
Billme

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MS

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hummm...

Do you run a switch on the ignition? What battery?

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04-12-2010 08:25 AM  8 years agoPost 10
ashleyk

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south wales

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Hi
Yes i run a switch and 7.4v lipo with a regulator to 4.8v.

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04-12-2010 02:30 PM  8 years agoPost 11
Billme

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MS

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Some regulators cannot keep up on the ignition, try something else to see if that is it...Use a heavy duty switch...

I use a 6.6 volt a123 with a couple of barrel resistors inline to get 4.8.. I also do not use a switch.

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04-12-2010 09:23 PM  8 years agoPost 12
ashleyk

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south wales

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It's a flight tech 5a regulator.

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04-13-2010 12:50 AM  8 years agoPost 13
Billme

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MS

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Never hear of it..Get a straight 4.8 battery and try it...

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04-13-2010 01:09 AM  8 years agoPost 14
smallplanes

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S.C. ,SSA

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I saw a Radikal up close yesterday and i saw it fly it a lot nicer heli that i thought. I think the tail belt is to narrow but i guess it works. I tell you for a 20 that baby has some comprestion. I like it.

Thanks
Ivan


Spectra G 26cc
Jewel
Bat 27cc
Trex 700<br

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04-13-2010 09:57 AM  8 years agoPost 15
ashleyk

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south wales

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HI

I think i'll take the regulator and lipo off the ignition and try a 4.8 battery many thank. let you know how it gets on.......

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04-13-2010 03:46 PM  8 years agoPost 16
Billme

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MS

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Good choice

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04-17-2010 06:54 PM  8 years agoPost 17
ashleyk

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south wales

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Hi All

I put a 4.8 on the ignition and it flew like a treat all day long it didnt cut out the regulator must have been the problem...

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04-17-2010 09:22 PM  8 years agoPost 18
dazzaster

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right next door to hell

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theres two radikals in our club and a kasama running the same g20ei
and on all of them the 4.8v nimh battery where nackered after a couple flights. two of them have move to a single cell lipo the third mine is on its second battery but will order the lipo soon

A.K.A 509

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