TaoTao ATM50-A1 50cc suddenly stop running :'( [solved !!]

taotao15
Scoot Junior

Posts: 12

TaoTao ATM50-A1 50cc suddenly stop running :'( [solved !!] Jun 9, 2015 9:38:25 GMT -5

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Post by taotao15 on Jun 9, 2015 9:38:25 GMT -5

HI guys how are doing to day ?

i am getting a hard time with my moped TaoTao ATM50-A1 50cc

, it is brand new i bought 2 months ago and has 450 milles, but 4 days ago when coming home i stooped at store to buy some stuff , when i back to the moped i try to run it and ..... no things

.
hopefully my friend help me to get it home.
i started a series of tests:

1. fuel line check : to bypass the fuel valve issues i connect thew carburetor directly to the fuel filter.
2. clean the vacuum line: actually it was clean.
3. change the spark plug : before putting a new spark plug i crank the scooter and i put my fringe in the spark plug hole i feel pressure but i don' t really feel a fuel (i am not sure how much fuel should i get in this step) but since it start -sometimes- i conclude that it got gas .............euuuh rigth ?

4. clean the carburetor : with carburetor cleaner i can't get to carburetor jets it's sealed carburetor grrrrrrrrrrrrrr
5. clean the air filter.
6. change engine and gear oil.
7. check the resistance on the the automatic choke : hard to read but it seem something like 10 ...12...
8. Valve adjustment : i am in this step but before i process i want to be sure i am not missing some thing.

NOTICE : i get lucky sometime and the engine start running, but i have to give him lot of gas to continue runing. if i give it less gas it stop immediately, and i feel like it lost a power .

hope to hear from you soon guys

Last Edit: Jun 10, 2015 15:20:42 GMT -5 by taotao15

90GTVert
Administrator

Posts: 41,325

Location: Preston, MD

TaoTao ATM50-A1 50cc suddenly stop running :'( [solved !!] Jun 9, 2015 14:20:06 GMT -5 taotao15 likes this

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Post by 90GTVert on Jun 9, 2015 14:20:06 GMT -5

Here's some valve adjustment help. I'd complete that first and see what happens.

49ccscoot.proboards.com/thread/428/valve-adjustment-pics-video-139qmb

Try checking spark and see if it looks weak. You can take out your spark plug after it hasn't started with cranking and see if it's wet or dry.

Last Edit: Jun 9, 2015 14:21:05 GMT -5 by 90GTVert

Brent
Life is better at high RPM.

taotao15 Scoot Junior Posts: 12	TaoTao ATM50-A1 50cc suddenly stop running :'( [solved !!] Jun 9, 2015 14:33:45 GMT -5 90GTVert likes this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by taotao15 on Jun 9, 2015 14:33:45 GMT -5 thank you @90gtvert

humanshield
Scootaholic!

Posts: 2,639

TaoTao ATM50-A1 50cc suddenly stop running :'( [solved !!] Jun 9, 2015 16:09:43 GMT -5

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Post by humanshield on Jun 9, 2015 16:09:43 GMT -5

Since it happened "suddenly" and didnt show symptoms before (or at least you didnt say so), it could be an air leak.

Check ALL the vacuum hoses and tighten up the intake nuts on top of the manifold.

Also be aware that it is always possible to get bad gasoline. They have filters on them and all but it isn't unheard of.

After that I would def check the valve adjustments.

50cc QMB139's with BBK's - SOLD
150cc Scoot
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niz76 Scoot Master! Glitter Blaster I have the "Scooter Tuning Bug"! Posts: 6,103 Location: New Port Richey, FL	TaoTao ATM50-A1 50cc suddenly stop running :'( [solved !!] Jun 9, 2015 16:41:23 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by niz76 on Jun 9, 2015 16:41:23 GMT -5 Had a similar issue just last night. Would only start and run at at least half throttle. Ended up being a clogged idle jet...
	Roketa AIR R50 JA90 Adly 96cc 2T ATV engine (Hoca 54mm) Polini adjustable two-shoe clutch 5g roller weights Home made Modified Hoca vari "Mini O.R." Technigas "Next R" 100cc exhaust Home made 26mm intake 21mm Polini CP Carb. 90 Main Jet 40 idle jet Free Flow "K&N style" Filter w/Rain Cover 11:1 Gear Ratio 61 mph GPS @ 9500 RPMs 260 Lb.Rider

Fox Scoot Master! So. Cal Posts: 6,301	TaoTao ATM50-A1 50cc suddenly stop running :'( [solved !!] Jun 10, 2015 9:46:36 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Fox on Jun 10, 2015 9:46:36 GMT -5 Odds are it's not what happened to you but one thing that hardly ever gets mentioned is that mixture screws can vibrate loose and fall out.
	Dave

taotao15 Scoot Junior Posts: 12	TaoTao ATM50-A1 50cc suddenly stop running :'( [solved !!] Jun 10, 2015 11:05:28 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by taotao15 on Jun 10, 2015 11:05:28 GMT -5 I find the issue !!! cracked air intake manifold but it was so hard to discover since it is hid read this Do you know better replacement intake ? this seem very bad quality

walleye1963 Scoot Veteran Posts: 951	TaoTao ATM50-A1 50cc suddenly stop running :'( [solved !!] Jun 10, 2015 11:52:56 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by walleye1963 on Jun 10, 2015 11:52:56 GMT -5 I think scrappy dog has a all crome one.

scooterpimp Scoot Master! Still No Future Posts: 5,791 Location: Delaware	TaoTao ATM50-A1 50cc suddenly stop running :'( [solved !!] Jun 10, 2015 18:01:34 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by scooterpimp on Jun 10, 2015 18:01:34 GMT -5 I think hoca makes one also , but its like 35 clams