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HomeAircraftHelicopterEngines Plugs Mufflers Fuel › webra 52aar
11-06-2004 08:16 PM  13 years agoPost 1
Renegade2473

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UK Newcastle Upon Tyne

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Ive practically turned off the high speed needle and the engine is just starting to two stroke.Dose anyone think that maybe the exhaust I'm using might be responsible,as it is not really designed for the engine.

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11-06-2004 10:55 PM  13 years agoPost 2
Windspiel

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Massachusetts

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What exhaust are you using ?

I have a MP2 on mine not very happy with it is like a switch on pipe then off pipe
Fuel is Coolpower 5% with a Webra #3 glow plug
Needle setting are 2.5 on low and 1.5 on high and makes allot of power
really had to tone down the throttle setting to keep it below 2000 rpm head speed

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11-07-2004 11:17 AM  13 years agoPost 3
Renegade2473

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UK Newcastle Upon Tyne

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webra52aar
I'm just using a standard Kyosho 46 muffler.I took out the baffle,so I'll see if that makes a differance.Oh,any good ideas on how to stop the carb loosing out of the housing?

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11-08-2004 01:27 AM  13 years agoPost 4
Windspiel

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Massachusetts

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I would default the needle setting 3.5 on low and 2.5 on high
work with the low till you have enough power to spool up and hover
land and then check the engine temp after the low is set hover it again and hit the throttle is it sputters set the high needle you should be set with the needle
remember the low needle is 75% of the throttle range

If the carb is lose use a little a RTV and tighten the nut so it doesn't twist

Make sure the exhaust flange is tight might also want to make a gasket with RTV also

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11-08-2004 09:41 AM  13 years agoPost 5
Renegade2473

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Webra52aar
RTV?

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11-09-2004 01:22 AM  13 years agoPost 6
Windspiel

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Massachusetts

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11-15-2004 12:22 PM  13 years agoPost 7
wouter

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Belgium

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my needles: 2.6 out on the low, 0.75 out on the high.
i know, it seems very lean but it still doesn't make top power.
could lean more but it's running already pretty hot...
muffler is the standard TT.50 deluxe, fuel WC15.

i've tried lower nitro fuels too but then it runs even richer (takes like half a minute to spool up.)

renegade,
i would try another muffler. .46 seems a little small.
you also might wanna try another fuel.
when i switched from CP to WC it made a significant amount of difference...

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11-15-2004 12:40 PM  13 years agoPost 8
Renegade2473

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UK Newcastle Upon Tyne

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webra52 AAR
Wouter,that sounds similar to what the situation is with me.I've got the low speed set at 2 3/4 turns out, and the high speed set at 1/4 of one turn out! This is what has me concerned.This all started after I crashed my Raptor due to the orininal exhaust shering in two.Oh yeah I'm using magnum 12% and I think its got 20% oil.

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11-15-2004 01:14 PM  13 years agoPost 9
G.Man

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Bristol

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If your muffler is too small then you will have an excess of fuel pressure requiring a very "closed" high needle..

The webra works very well on a hatori 540 pipe, zimmerman 60 muffler and weston genesis mini-pipe...

Don't Email me as I wont reply - PM Only (spam countermeasures)

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11-21-2004 06:35 PM  13 years agoPost 10
wouter

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Belgium

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srry to diss this back up but euh

galifrey: do you have the # of the zimmermann?
i've been thinking about a bigger muffler some time now
(and with christmass coming up )

hopefully then it will run a little colder because now it's just too hot
plug last about a gallon

thanks

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11-21-2004 07:04 PM  13 years agoPost 11
TOSH

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UK.Peterborough

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wouter

Hi,l think Galifrey may have been refering to the setup l had some time ago which was a raptor 50 v1 with one of the early 52 aar`s.lt ran very well on coolpower 15%,firepower 7 plug,gv1,uniflow and the 60 zimmerman.l no longer have the number but it was the muffler for the OS 60 SXH,WC. Still have the muffler and its good on the OS50 now.

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11-22-2004 01:38 PM  13 years agoPost 12
wouter

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Belgium

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11-22-2004 08:51 PM  13 years agoPost 13
TOSH

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UK.Peterborough

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Hi wouter.
Just measured it and it matches up with the one in the link,only thing against it you`ll need to slot the holes abit and its stainless(bloody tough).Here`s a pic of mine.

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