Welcome to our Syma Forum - Please click on topics to view comments.You have to be a member to post-Free to join. Enter correct email as password will be emailed to you- All Syma Helicopter help and advice here. NEW- you can now change color of forum, bottom of page!

A A A
Avatar

Please consider registering
guest

sp_LogInOut Log In sp_Registration Register

Register | Lost password?
Advanced Search

— Forum Scope —




— Match —





— Forum Options —





Minimum search word length is 3 characters - maximum search word length is 84 characters

sp_Feed Topic RSS sp_Related Related Topics sp_TopicIcon
Copter Twirls Out of Control
Avatar
bashburn
Guest
Guests
January 30, 2012 - 8:25 am

Does anyone out there fix these copters?  I haven't been able to find anyone local.  Our Syma 107G takes off and gets a couple feet off the ground, then begins swirling out of control until it crashes.  Any ideas how to fix this or know of any place that does?

Thank you.

Avatar
Freeonthree
Guest
Guests
January 30, 2012 - 9:12 pm

OK, we can do this...  :>)  First of all I want you to look closely at the gear teeth, all of them. See anything weird ? Like a gear with flat tipped teeth, shorter teeth, missing teeth, and teeth that don't line up correctly with other gears teeth. Everything should be close to being centered. Also make sure the shafts don't have excessive up/dn slop. 1/16" movement is ok, Note that when ya move the shafts, the gears move also. The shafts are pulled upward during flight, so make sure the gears are staying in alignment when the shafts are pulled upward, just in case. 

Next, if the teeth all look ok, hold the upper blade grip, and see if the flybar can rotate left and right alot. A little slop is normal. 

Next, if the flybar deal is ok, make sure neither blade grip is slipping on the shaft. Those are splined, and can strip during heavy blade strikes, like not shutting the throttle off before crash inpact. Hold the shafts with needlenose pliers, and try to gently turn the blade grip, but don't strip a good spline doing it, be gentle. If it's stripped, it will slip easily.

Be sure to check out one of the first threads, that says read this first. Tons of great info in there.

By the way, you could just have a main motor going out also. These motors have tiny brushes, and arc between the brushes and commutator when held back, like not releasing the throttle before crash inpact, or uprighting the heli from laying on it's side, by blipping the throttle. Thats not good for them at all.

If you can't figure it out, i'd be glad to repair it for you, but im in Red Bluff California.  A new heli fom Amazon might be chaeper than shipping both directions.  A new S107G is under 30 bucks shipped from Amazon, and you'll have a ton of spare parts.  Just think... your own little helicopter wrecking yard Wink   Dennis   

Avatar
Old_Iron_Spine
Guest
Guests
January 31, 2012 - 6:50 am

Is it making any weird sounds? Wobbling, shaking.

What does the trim knob look like? It should be centered. Are the main rotors moving fast? They should be moving close to the same speed. Have you tried hand launching it? It may be ground effects, though I've never seen ground effects act like this.

Are you using a controller or iPhone/iPod with it?

Avatar
Syma Freak
Admin
January 31, 2012 - 5:12 pm
Member Since: November 26, 2010
Forum Posts: 1429
sp_UserOfflineSmall Offline

@bashburn The hobby you have just got into is for ever,you will only progress,the learning curve is to repair your own heli-a lot cheaper and a curve that you will enjoy-never be scared to try.Freeonthree has posted above some ideas.

There are some really great people here to help you-Always try to repair your self-point being you will start to understand how a mini heli works.I used to be in the car industry,most people never understood when they turn on their ignition key why the car starts-Learning is fun-Take care. Smile

"Fly like a butterfly sting like a Syma" http://syma107.com

Avatar
Freeonthree
Guest
Guests
February 1, 2012 - 8:30 pm

Yeah, all you need is a little screwdriver to fix just about anything on these little heli's. A low wattage soldering pencil (30 watt max), small diameter solder, and some desoldering braid is a must for changing batteries and motors, and the circuit board. Their real easy to work on, and generally fun to just tinker with, like snugging up all the screws when needed, and adjusting the blades so their free yet don't flop up and down excessivly, and inspecting the gears once in a while, especially after a crash, making sure their all lined up with each other correctly, and making sure there's not alot of slop between the flybar and upper blade grips, but a little is ok. Inspect your little friend closely, and become one with it. Surprised lol  Dennis 

Have you hugged your S107G today ?       

Forum Timezone: Australia/Sydney

Most Users Ever Online: 84

Currently Online:
8 Guest(s)

Currently Browsing this Page:
1 Guest(s)

Top Posters:

MikeK: 178

SymaGuru: 32

Airsucker: 13

swordfish010: 8

nope: 5

cyclib: 2

Member Stats:

Guest Posters: 714

Members: 650

Moderators: 0

Admins: 2

Forum Stats:

Groups: 7

Forums: 15

Topics: 1269

Posts: 8165

Newest Members:

Frgeti44, Adelacix, AnnieVoW, lilianany60, SantoCeamb, annmariebq18

Administrators: Syma Freak: 1429, JamDJ: 254