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HomeAircraftHelicopterGasser Model RC HelicoptersOther › gasser predator help
09-13-2015 05:17 AM  33 months agoPost 41
turboomni

rrProfessor

East of the Equator

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Both True ^^ - however, without checking WOT you don't know if the H needle is set lean or not. and being that the Heli's flight will be between 55-80% throttle most of the time, that's roughly 70% H needle
Well my understanding of this it is at hover which is where all his problems seem to be happening. When hovering low needle has usually more impact than high needle settings. As far as tuning the high for best performance I remember well flying with Raja we would do a climb out full collective gradually applying it and land and then read the "max rpms" recorded on my GV1 gov and then try some other needle setting and then read it again. Not to argue at all with you at all ,,that is not my intent!!

Setup is everything, All my heli's can fly far better than I can pilot them

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09-13-2015 05:18 AM  33 months agoPost 42
BeltFedBrowning

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Kansas City

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the Heli's flight will be between 55-80% throttle most of the time
You are making an assumption. Did he post his radio settings?

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09-13-2015 07:08 AM  33 months agoPost 43
Dingo07

rrApprentice

Newport Coast, CA - USA

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Not arguing... not a professional engine tuner either...
Just trying to help out a fellow flyer!

BeltFedBrowning said:
You are making an assumption.
True - all I have to go by is this thread and my many years of experience with Zenoah 2-stroke engines.

It does not mean I know everything there is to know about engines, there's always something to learn!

@turboomni - ultimately it's his linkage, radio and governor setup that dictates where the heli is at hover... 50% stick might not equate to 50% throttle of the engine, that's why I suggested taking the engine out and putting it on the bench to run manually

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09-13-2015 09:31 AM  33 months agoPost 44
joecass

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NJ

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I would start it and spray some carb. cleaner around the carb. intake if it stalls out you have a air leak. use the straw that comes with the bottle of carb cleaner so you can spray the intake only. if you get it on the butter fly shaft it might stall out because it gets sucked in around the bushing of the butter fly shaft. I had a warped carb insulator and that is how I found it.

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09-13-2015 01:03 PM  33 months agoPost 45
turboomni

rrProfessor

East of the Equator

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@turboomni - ultimately it's his linkage, radio and governor setup that dictates where the heli is at hover... 50% stick might not equate to 50% throttle of the engine, that's why I suggested taking the engine out and putting it on the bench to run manually
Yes I agree on the radio throttle stick position. But you know the carb is not linear and a 45 degree butterfly opening on the carb is not 50% throttle. That is why I use the Malorie linkage method. It would be good to put the engine on the bench to see I would guess if all else fails. I do not claim to be an expert either and would like to see raptornoob's problem found and solved too. joecass 's idea is good to try too.

Setup is everything, All my heli's can fly far better than I can pilot them

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09-13-2015 02:05 PM  33 months agoPost 46
BeltFedBrowning

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Kansas City

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Might not be a bad idea to spray around all the engine gaskets while he is at it.

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09-13-2015 02:36 PM  33 months agoPost 47
raptornoob

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shrewsbury. ma. u.s.a.

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I use the Malorie linkage method too
and i dont use a gv1 govenor, never tried one and dont use them, but today i woke to some nasty pains due to back surgery, so i will relax, i dont know if i can fly today,,,,i did fly the raptor 30 gasser wow 30--40 minutes fly time.....i think i got it right with the little guy, but i got to get predator running right......but i will see later if i can send you guys my settings at least, i have always appreciated the help on forums..and i know im a pain caz i have always been a tinkerer so all and most of my birds have started crashed or totaled, and ive brought them back to life, and its what i do.....i dont have the $$$ growing on a shelf, so i search for good used parts, but i know sometimes i get in a bind like this, where its probably something stupid....and i do live 45 minutes from rbort or raja but have never found the time to go, life come first.....and i know he could fix me up good.....but cant say i dont like a challange......so thanks guys and gals.....i will continue trying

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09-16-2015 08:42 PM  33 months agoPost 48
raptornoob

rrVeteran

shrewsbury. ma. u.s.a.

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ok gaskets in tomorrow
ok guys give me a good L and H needle settings to start her up this time.....after i install new gaskets

thanks

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09-17-2015 06:00 AM  33 months agoPost 49
Dingo07

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Newport Coast, CA - USA

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Set to Factory and start there... both 1-1/4 turns open

If it were me... I would buy Fully Synthetic 2-Stroke oil, not something with a castor base, then I would mix new gas using 4.5oz per gallon roughly 28:1

if you use the same gas you've got now and it's running lean or rich then your fuel/oil ratio needs to be changed or the mix can be off or bad - mix new gas

I'd be happy to send you my container of NEO oil to use. Before I used NEO I used Motul 800 2T, before that Yamalube 2R, before that a Motorex product

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09-17-2015 06:11 AM  33 months agoPost 50
rbort

rrProfessor

Franklin, MA - USA

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Sometimes
You can save yourself 6 months of futsing around and trying to figure things out by coming down and spending an afternoon at my field to learn alot of things.

I know its not for everybody (to come and visit), but if you can I promise its alot easier and faster than asking questions back and forth here, especially if you are within range.

-=>Raja.

MA 1005 Hanson 280, 4210 flts
Spectra 27 3DMax, 3280 flts
Whiplash V1-2 Hanson 300, 1555 flts
Whiplash V2 Hanson 300, 393 flts

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09-17-2015 12:37 PM  33 months agoPost 51
raptornoob

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shrewsbury. ma. u.s.a.

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i know rbort, your right
but not to be a negitive nelly, i just had back surgery 4 weeks ago, and had my first return doc appointment, and my shoulder as before is still painfull, and i was told back from MRI was a compressed disk pussing on a nerve......but after yesterday, i was told that the pain should be gone and numbness would take a while,,,,,,long boring story put short.......well i think they F$#@ed up.....i have to get another MRI on shoulder and back, doc thinks it might be shoulder and not back......so i might need another not affordable surgery, but positive note, got a free Donar bone and a plastic clip and 4 stainless steel screws , and a 4 inch scar for fun,

got to tell you, the helis are keeping my mind off the whole deal right now, i dont mind the tinkering, but i like to fly to so i quess another surgery

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09-17-2015 04:04 PM  33 months agoPost 52
rbort

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Franklin, MA - USA

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Sorry to hear about the health issues
Definitely not fun, I hope you get well soon.

-=>Raja.

MA 1005 Hanson 280, 4210 flts
Spectra 27 3DMax, 3280 flts
Whiplash V1-2 Hanson 300, 1555 flts
Whiplash V2 Hanson 300, 393 flts

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09-17-2015 06:22 PM  33 months agoPost 53
joecass

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NJ

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I broke my back in 04. I know how it feels. I'll be praying for you.

love your enemies and pray for those who persecute you

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09-17-2015 08:08 PM  33 months agoPost 54
raptornoob

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shrewsbury. ma. u.s.a.

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ok got some parts, and i tried again
some more boring videos......LOL

Predator new gaskets and tuning carbs

Watch at YouTube

Watch at YouTube

Watch at YouTube

almost there i think

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09-18-2015 04:45 PM  33 months agoPost 55
kogibankole

rrKey Veteran

albuquerque/ibadan

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the first thing you should be worried about are the plastic blade grips.

if im not blade bogging youll find me pack puffing

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09-18-2015 11:25 PM  33 months agoPost 56
Gearhead

rrMaster

Vt

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the first thing you should be worried about are the plastic blade grips.
if you look at his first video on the first page you will see he is using the 90 size plastic grips, he has nothing to worry about if he runs a respected HS of 1800 or lower. to add, the newer and smaller Radikal 20 grips that were made for the 7mm spindel were tested, and held 800 pounds, and there has not been complaints about them

but then if any grip (rather plastic or metal) has been in a blade strike of some kind or crash then you should have an open mind to them

Jim
Buzz Buzz Buzz

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09-20-2015 02:56 PM  33 months agoPost 57
raptornoob

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shrewsbury. ma. u.s.a.

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Setup is everything, All my heli's can fly far better than I can pilot them.

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09-24-2015 04:15 AM  33 months agoPost 58
turboomni

rrProfessor

East of the Equator

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Setup is everything, All my heli's can fly far better than I can pilot them.
They can?? Same here!!

Setup is everything, All my heli's can fly far better than I can pilot them

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09-24-2015 04:28 AM  33 months agoPost 59
turboomni

rrProfessor

East of the Equator

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the first thing you should be worried about are the plastic blade grips.
What is wrong with the plastic blade grips?

Setup is everything, All my heli's can fly far better than I can pilot them

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09-24-2015 09:23 AM  33 months agoPost 60
mcfast

rrKey Veteran

Quebec Quebec Canada

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According to some people the smaller plastic blade like on the Radikal 20
would brake at high HS, you know what happened after that the hells would explode in flight, not good!

P.S. sorry for the spelling or the grammar I am dyslexic!

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