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I need to set the timeing and carb on my 50cc 4 stroke scooter it is geting gas fire and compresion but will not start

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Is the air cleaner/air box obstructed?

Posted on Mar 22, 2011

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Posted on Jan 02, 2017

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My 50cc Scooter has a brand new carb but gas is leaking from overflow ???


Hi, Kim and the usual suspects are:
1. Damaged or restricted fuel tank venting system.
2. Loose float bowl screws.
3. Damaged float bowl o-ring.
4. improper fuel level in the float bowl.
5. Worn or dirty inlet valve or seat.
6. Damaged or leaking float assembly.
7. Particle contamination in inlet fitting cavity.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
Carburetor is leaking gas out of overflow tube need help
Carburetor Carb Leaking Gas How to Fix Repair it Motorcycle Honda DIY...
http://www.49ccscoot.com/manuals/Hyosung_SF50_Service_Manual.pdf
50cc scooter parts QMB139 49cc 4 stroke parts moped parts QMB139

http://www.yamaha-motor.com/assets/service/manuals/2008/zuma_lit-11626-21-15_1548.pdf

Jan 04, 2017 | Motorcycles

1 Answer

Is it possible that a 50cc Chinese scooter will continue Spark the spark plug rather than fired at each timing point. As a result rather then start it kicks back on the starter


being a 50cc engine it should have only 1 piston
If it is a 2 stroke , it will fire every time the piston comes to tdc
if it is a 4 stroke it has to have a timing point that excites the ignition system for every 4th stroke tdc
if the exciter receives a signal to fire the plug at the wrong time , it is getting that signal from a fault or incorrect timing
that fault can be
loose wire/s,worn unit that controls the timing ( distributor fault), loose flywheel , flywheel touching coil,incorrect timing (180 degrees out ) stator loose ,rotor loose,faulty crank position sensor
it is good practice to have a workshop manual on hand and if you don't have one go google and type in --workshop manual for 50 cc tao scooter--and see if there is a pdf version in english to download

Mar 05, 2016 | Tao New Scooter 50cc Street Legal New Look

1 Answer

Hi, anyone know what the factory carb settings are for an aeon mini kolt 50cc. Having problems with getting it started, changed spark plug and battery


Two-Stroke Scooter / ATV Carburetor Settings And ...

? 4:37
https://www.youtube.com/watch?v=A1vRMERs4RQ
Jun 2, 2012 - Uploaded by 90GTVert
Part 2 of a 4 part video detailing all of the basic settings and ... Two-Stroke Scooter / ATV Carburetor Settings ...

Fix your Mini bike Carb - bogging, cutting out etc - YouTube

? 4:51
https://www.youtube.com/watch?v=lbtDMFUiD0k
Aug 15, 2011 - Uploaded by Cpt MishMash VonRandom
If you are having trouble with your mini bike/quad whereby its difficult to ... Two-Stroke Scooter / ATV ...

quad 50cc carb Questions & Answers - Fixya

www.fixya.com > Forum > Tags
50cc carb wondering what the factory setting is for a 2002 50cc Kawasaki kid's ...aeon mini kolt 50cc quad will rev a little then cuts out no power Likely a lean ...

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Jan 05, 2016 | Factory Motorcycles

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I rode my 50cc scooter in the rain, with no air filter.


If you allowed water to get into the air inlet, if a 2stroke, I suspect the crankcase seals are damaged. If 4 stroke check compression for damaged piston.

May 28, 2017 | Star 50cc MOTOR SCOOTER

1 Answer

Lifan 50cc scooter not starting. I replaced choke solenoid and cleaned the carb. Am getting spark and putting sight vacuum on on hose leading to gas tank valve does produce gas flow in hose attached to...


It requires three main things to start the scooter:--- 1)Gas. 2) Spark. 3) Cylinder compression.---------- Any of the one is not functioning right so scooter is not starting.------------ Its possible that gas is not flowing till the carb and that is causing the problem.Either gas valve is clogged or faulty.Or gas line is clogged or carb itself is dirty and gunked up inside and needs to be cleaned.--------- Click this link below and follow the troubleshooting :--- http://whatisbyme.blogspot.com/2011/08/lifan-50cc-scooter-not-starting.html ----------- This will help.Thanks.Helpmech.

Aug 18, 2011 | Lifan Knight 125 Motorcycles

1 Answer

I have a 50cc 4 stroke chinese scooter. At the moment it will start and stop after a few seconds. Ihave checked for spark and fuel in carb all ok. The spark plug is not wet even after trying to start it as...


i have a 49.50cc beron motorscooter and when i received the scooter it had spark but now there is not any spark bought new sparkplug and new coil still no spark

Sep 17, 2010 | RTO 50cc Moped Scooter

1 Answer

Mini gas scooter dont start


Does it have gas? just kidding. Even experienced mechanics forget that one. It may not be getting gas into the engine though. I use an old trick, disconnect the air box boot from the carb, cup the carb inlet with my hand, which is called a hand choke, and turn the engine over while hand choking. Your hand should get wet with gas. Remove your hand after a couple of seconds or so, it may start, or try. If not hit, pull the plug and lay it on a good ground on the engine, do not touch while cranking over the engine to check for spark. These are two of the basic requirements of an engine.

Nov 22, 2009 | RTO 50cc Classic Gas Moped Scooter

2 Answers

2003 gelly 50cc motor scooter


Hi again,

Any development(s) with your carbs?

Mar 21, 2008 | Harley Davidson Harley-Davidson Motorcycle...

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