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HelicopterThunder TigerRAPTOR 50 › TT pro-50H Needles Useless
06-02-2010 09:28 PM  7 years agoPost 1
Norm

rrNovice

Nova Scotia, Canada

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I haven't really much experience with engine tuning. There has always been a guru floating around my field. But now I am setting up my raptor 50 titan with a pro-50H in it alone. I am on my 4th tank with it. I wasn't getting as much smoke as I wanted so I opened up the high speed needle a few clicks. Flew it around but no change. So I opened it a few more clicks with no change in smoke. So I opened it up all the way. Still no change in smoke? or behavior? I then pulled it right out. The helicopter revved up a tad then shut off. It is my understanding that the thing should have been slobbering rich. But I didn't notice any change. Any suggestions?

Thanks

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06-03-2010 02:15 PM  7 years agoPost 2
GREYEAGLE

rrElite Veteran

Flat Land's

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Wrong needle

Try the other one -

greyeagle

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06-03-2010 03:55 PM  7 years agoPost 3
Norm

rrNovice

Nova Scotia, Canada

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I messed with the low speed a little and reset the high speed. It ran cool on the next flight.

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06-04-2010 01:15 PM  7 years agoPost 4
jschenck

rrProfessor

La Vista, NE.

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I'm just breaking in a brand new TT50H this week, great running engine. With the TT50 the low end is critical, it affects most of the mixture range. So far I've found that I started off with both at about 3 turns out, worked on getting the high needle "close enough" then I've been tuning on the low. Biggest goal is to keep the engine from getting too hot, especially the first gallon or two.

I did do the "needle mod" before starting this engine. Basically take both needles out, chuck them up in a dremel and spin them at a lower speed. Then use a file or sandpaper to sharpen the tip. Don't need it super sharp, just put a taper on the end which is squared off by the factory. This will help with tuning. Search here for TT50 needle mod

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