throttle stuck full blast ?

[plastichog]

hi, yesterday i was riding my sunny, and i heard a click in my throttle, i was going downhill, 45mph, and i hit a light, so i let off the throttle, but it was still going full blast! i had to pull off a back road and hit the killswitch, and then it wouldnt start, is it the throttle grip itself or the cable? the throttle on the carb is on full blast, the cable is tight next to the carb, but loose next to the grip. if neone could help id really appreciate, as this is my daily driver. thank you

[Fox]

There's no way anyone can tell you what's going on from an internet terminal. You have to dig in there and inspect the works yourself. It's probably the cable but you never know until you inspect everything.

[imnts2]

I think you are stuck with getting the tools out and getting apart the linkage. I would start at the carburator getting the throttle cable released from the butterfly.

See if you can get it running after you get the butterfly free. You may have pretty near destroyed your engine with full throotle, but I would guess not. But let's find out first.

If you get it starting and running, the task is a lot simpler. You need to carefully disassemeble the throttle mechanism. Something broke or is jammed. Do youhave a service manual? You should be able to find a free on to download on this forum.
Try a search on the bottom of this page for gy6 service manual or repair manual. Go to forum jump and look for Scootdawgs how to and information database for the 50CC and for the the 125 forum. Look these over. Lots of good stuff about you scoot.

Good luck. Keep us informed.
Darned china stuff anyway. Lots of near cheap.
lefty2

[Pony66]

Jan 15, 2012 9:05:34 GMT -5 plastichog said:

hi, yesterday i was riding my sunny, and i heard a click in my throttle, i was going downhill, 45mph, and i hit a light, so i let off the throttle, but it was still going full blast! i had to pull off a back road and hit the killswitch, and then it wouldnt start, is it the throttle grip itself or the cable? the throttle on the carb is on full blast, the cable is tight next to the carb, but loose next to the grip. if neone could help id really appreciate, as this is my daily driver. thank you

The throttle grip is plastic and easier to break with time. Since you say the grip is loose, I imagine your break is there.
Sometimes the right brake lever holds the throttle grip. Its easy to take off and check.

Here is a shop manual if you need.
www.chinesescooterreference.com/pdf/50_150cc_gy6_shop_manual.pdf

[plastichog]

Jan 15, 2012 9:53:18 GMT -5 imnts2 said:

I think you are stuck with getting the tools out and getting apart the linkage. I would start at the carburator getting the throttle cable released from the butterfly.

See if you can get it running after you get the butterfly free. You may have pretty near destroyed your engine with full throotle, but I would guess not. But let's find out first.

If you get it starting and running, the task is a lot simpler. You need to carefully disassemeble the throttle mechanism. Something broke or is jammed. Do youhave a service manual? You should be able to find a free on to download on this forum.
Try a search on the bottom of this page for gy6 service manual or repair manual. Go to forum jump and look for Scootdawgs how to and information database for the 50CC and for the the 125 forum. Look these over. Lots of good stuff about you scoot.

Good luck. Keep us informed.
Darned china stuff anyway. Lots of near cheap.
lefty2

youre very right this china stuff SUCKS this is ridiculous the stupidest things break eg, my blinkers, throttle, crappy plastics... paid 150 for the scoot, put $300+ in parts into it... the motor runs very strong its got 3000 miles on it and still going. im thinking im going to take it to a mechanic, no garage and its 10 degrees out right now!

[terrilee]

WAIT A MIN------ WAIT JUST ONE DA*N MIN.
u paid $150 for a scoot that runs "strong"

and u cry about the lil things that brake ?
blinkers ? plastics ?
they cost tens of dollars to fix

i think u need to get a grip

take that $150 u paid--multiply it by 10
and try to find a used AMERICAN car
that runs STRONG and see how much $$$ u put into it
and see if it can be a "daily" ride,
to keep it running

my china scoot
is fantastic--she's not junk.
she runs great--always starts-- etc etc etc

i will bet
that your the type that does NO MAINTENANCE
and then cry's when something goes wrong.

in the 1st week of getting chrissy
her throttle cable broke.

hmmm $10 for cable and maybe 45 mins to fix it
and i had no idea on how to fix it, and I AM A MIDDLE AGE WOMAN,
AND I CRIED A WHOLE LOT LESS THAN U

THINGS BREAK ON ANYTHING ALL THE TIME


its the old:::::::::::::::::::::::::::::::::

I WANT IT AND I WANT IT NOW !!!!!!!!
AND I WANNA SPEND NOTHING FOR IT
AND I WANT IT TO WORK--PERFECTLY-- FOREVER

[Pony66]

Jan 15, 2012 10:19:31 GMT -5 plastichog said:

youre very right this china stuff SUCKS this is ridiculous the stupidest things break eg, my blinkers, throttle, crappy plastics... paid 150 for the scoot, put $300+ in parts into it... the motor runs very strong its got 3000 miles on it and still going. im thinking im going to take it to a mechanic, no garage and its 10 degrees out right now!

Its sure easy to get frustrated when things break. But its got a lot to do with the 10o weather as well as plastic parts.

It does sound like you have a good scooter. I think, to go 3000 miles and some things start to break is pretty good. Levers, bearings, linkeage and cables need to be lubed. This really helps a lot when parts are cold and brittle.

Cheap scooters can become a money pit quickly if your paying someone labor and overpriced parts. I hope you can find or borrow a little shelter to fix your scooter yourself.

I really hope get your strong scooter fixed and start enjoing it again.

[terrilee]

one more thing
i dont have a garage either and its 19 degrees

does ur scoot sit out unprotected in that kind of weather ?
hmm maybe water etc got into things

i knew this was going to happen this winter
{ my landlord made me take down the enclosed "shed" type
thing i had on the front porch}
wasn't the the greatest thing in the world, but
kept the wind, rain and snow off me.
put a couple portable heaters in there a hour before i had to do work
and it was tolerable.
so i hunted and hunted
found a deal at the home depot
a 6x6x6 tent garage for $85
usually lists for $125

so now i have a nice garage--kinda small
had to add a bunch of stuff to make it more wind tight
gonna go turn on the heaters and in a hour or so
go tighten bolts, check connections etc.
mon-tues are supposed to be high 40's
so i wanna go ride, so i HAVE TO TO THE PREVENTIVE MAINTENANCE.
so things dont bust when out and about

THINK ABOUT IT

[inuyasha]

Hi
Welcome neighbor ;D
I see your in CT, i live there as well,
If theres any thing i can do to help please let me know
Take care and drive safely
Yours Hank

[mainepeace]

Wait a second...

The throttle is "on full blast". That means the return spring on the carb broke. The spring is very strong and if the throttle cable broke or the connector to the throttle grip broke, it would snap shut as a safety feature, NOT be at full throttle when starting.

Either the return spring broke or something jammed into the assembly somewhere. Since the end of the throttle cable SCREWS into a plate that attaches to the carburetor it will always "be on there tight". You need to look at the thin cable within the cable sheathing.

If you're lucky, the end of the spring just popped off it's perch and you can push it back on with a flatblade screwdriver. If you're unlucky, you will have to replace the carb.

Do us a favor and take off the seat bucket and post a photo of the carburetor and throttle linkage (the circular thing with the throttle cable attached to it).

The spring is cheap but it's difficult to replace as most of the time it's welded on.



Greg

[imnts2]

Hi againl
Sorry I failed to say welcome.
Yep china scoots are cheap. Like most everything else. But they are cheap.
keep warm. LIfe can be crap - the the alternative is Siiiiy..
cheers
lefty2

[beachbum]

China scoots are cheap and that is why we buy them. Little things break or fall apart, but it's all just a hobbie isn't it?

I think mainepeace nailed it...the spring or something caught in the there holding it open.

[beachbum]

Oh...welcome to the forum. There is a lot of good info on here and some of the members can really help you out, but like with anything check and double check the advice. Welcome.

[Scootless Wonder]

Ok guys let's think about this for a second.

First, throttle stuck WOT. Ok this says the spring may have broken BUT...

Second, cable tight at carb but not at throttle handle...

Third, throttle not responding.

Ok at first I'd ALMOST agree that the spring busted. BUT reading again, I see a much different problem. I think the cable is bad. The fact that the cable is taught at the carb indicates the spring is maintaining tension on the throttle cable but the cable itself isn't letting go. I'm going to guess that rust has damaged the threads of the cable and caused fraying inside the cable itself. After the inner nylon liner frayed, it gave the cable that had frayed/broken somewhere to grab and the stars aligned at the worst possible time.

I'm also going to guess that being left in the weather allowing condensation and or moisture to enter the cable is likely a good culprit. Not to nitpick or anything but I know my motorcycle as part of it's regular lubrication informs the owner to take both the clutch and the throttle cables off their respective handlebar controls, take oil, make a funnel and fill each cable with oil until oil comes out the other end. This prevents rust from forming on the cable itself as well as keeping it lubricated internally. I also do this on my scoot though it only has the throttle cable to worry about.

So here's MY recommendation. Take it or leave it. Get a can of PB Blaster. Remove the throttle cable at the handlebar. Spray the PB Blaster down the throttle cable tube. Allow it to soak for perhaps a day or two. Reattach the throttle cable and twist throttle wide open and release. See if that frees the cable. Once the cable is free, replace it. This is a cheap part and it is an easy fix. If the cable bound up once it WILL happen again whether you oil it now or not. So don't risk it just get the old one out and put a new one in.

If the PB Blaster doesn't work, then you may need a pair of dykes (angle cutters to those non electrician types) to cut the cable probably fairly close to the carb. Once the cable is cut it should free the butterfly and spring everything back into place. Replace cable and go about your scootin way.

[Scootless Wonder]

Oh BTW welcome to the world of chinese scoots. You will always have SOMETHING you want to do or need to do to the scoot so get used to it. It only cost $150 so in the long run, you're still ahead of the cost curve really. A little knowledge and an ability to turn a wrench will have you riding for plenty more miles.

[mainepeace]

The scooter control cables really weren't designed to be manually lubricated. Most of them use a teflon inner coating and weren't designed for liquid lubrication. That doesn't mean that squirting some sort of lube down the tube won't work, but it wasn't the intent.

There are some lubing jigs that are available (at certain unnamed eshops) but most people seem to think that if the cable is at the point where it is sticking that badly you should just replace the cable.

Standard wire cutters should cut the throttle cable easily. I've done it before. Not the wire cutters built into pliers, but standalone wire cutters with steel handles.

Greg

[Scootless Wonder]

Greg that's exactly what Dykes are. Side angle cutters are basically large wire cutters. And I thought most cables had a Teflon coating these days but I was mostly making a point. The Teflon gets worn away or if the cable rusts inside, it can cause exactly what it sounds like is happening right now.

[mainepeace]

I always thought Dykes were (insert obvious description here).

Anyway, there are many ways to skin a fish! All that matters is that you are scooting safely!

Greg

[psikiguy]

Cable probably got caught, then flooded the engine.