Question about 2005 Qianjiang QJ150

1 Answer

My 50cc Qingqi motor scooter was running perfectly... after a trip of 2 or 3 miles, when I go from idle to full throttle it dies. If I slowly increase speed it is OK

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 93 Answers

Make sure it's not flooding the cylinder and wetting the spark plug small engines tend to do that sometimes !!

Posted on Oct 05, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have 04 Qingqi QM50QT-3, no spark ,new plug ,what could be the problem? JOE


Hi, Joe and the usual suspects are:
1. Fouled spark plugs.
2. Severely discharged or a damaged battery, should have 12.5 volts or better and be able to pass a load test if necessary.
3. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
4. Loose connection at ignition coil or plug between ignition sensor and CDI box.
5. Spark plug cables in bad condition, shorting / leaking, spark plug cable connections loose, check for spark leakage in the dark.
6. Faulty ignition coil, pick up coil, trigger coil or CDI box testing needs to be checked with an ohmmeter at 70 degrees Fahrenheit
7. Faulty safety switches clutch, kickstand, neutral, off/on etc.
8. Faulty ignition switch.
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.
QM50QT B2 No Spark
QINGQI QM50QTB2 no spark
49cc 2 stroke engine scooter has no spark Help
My scooter has no spark how to fix gy6 chinese scooter 139qmb qmb139 50cc...
https://scootergrisen.dk/scooterhjemmeside/download/qingqi_qm50qt6_servicemanual.pdf

Nov 12, 2016 | Qingqi Motorcycles

1 Answer

My 50cc kymco scooter starts but when you pull the throttle back it cuts out


Hi, Christopher and the usual suspects are:
1. Idle circuit and transfer ports clogged.
2. Air fuel mixture adjustment too lean.
3. Pilot jet clogged.
4. Faulty accelerator pump.
5. Float level too low.
6. Float bowl contaminated old fuel, water, dirt, rust, etc.
7. Float bowl vent or overflow tube clogged.
8. Fuel flow to carburetor restricted.
9. Intake manifold leak.
10. The gas cap is not venting properly or fuel tank venting system blocked.
11. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
12. Needle and seat stuck closed in the float bowl.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
Bike idles perfect but dies when given the slightest amount of throttle 93...
starts idles stalls giving gas Scooter Doc Forum
scooter dies if give it throttle
http://www.scootermasters.com/manuals/kymco%20People%2050-complete.pdf

Aug 27, 2016 | Kymco Motorcycles

1 Answer

My kymco 50cc starts but when you go to throttle it it cuts out can you help


Hi, Christopher and the usual suspects are:
1. Idle circuit and transfer ports clogged.
2. Air fuel mixture adjustment too lean.
3. Pilot jet clogged.
4. Faulty accelerator pump.
5. Float level too low.
6. Float bowl contaminated old fuel, water, dirt, rust, etc.
7. Float bowl vent or overflow tube clogged.
8. Fuel flow to carburetor restricted.
9. Intake manifold leak.
10. The gas cap is not venting properly or fuel tank venting system blocked.
11. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
12. Needle and seat stuck closed in the float bowl.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
http://www.scootermasters.com/manuals/kymco%20People%2050-complete.pdf
scooter dies if give it throttle
starts idles stalls giving gas Scooter Doc Forum
Bike idles perfect but dies when given the slightest amount of throttle 93...

Aug 27, 2016 | Kymco Motorcycles

1 Answer

Runs but not idling


The idle screw is normally found on the carburetor and is a screw with a spring, close to where the throttle cable enters the carb.

Jan 28, 2014 | Quad Cycling

1 Answer

Adly 50cc scooter idles fine when warms up will just die when you give it ga


Hi Danny, and the usual suspects are:
1. Dirt or other foreign matter between float valve and its seat.
2. Float valve sticking.
3. Float valve and/or valve seat worn or damaged.
4. Float misadjusted.
5. Float cracked, leaky or damaged.
6. Excessive "PUMPING" of hand throttle grip.
For more information about your issue, please visit the websites below. Good luck and have nice a day.
Untitled Document

Jul 17, 2012 | Adly Supermotard 50 cc Motorcycles

1 Answer

50cc Scooter won't rev up, Keihin PD18J carb


my 50cc scooter will idle at first and rev very well but wont idle what can this be

Jul 08, 2012 | Motorcycles

1 Answer

Vanguard V Twin 18 hp. monted in Cushman Motor scooter, runs great at W.O.T and at on quarter throttle, misses at range inbetween


Sounds like your carb needs the fuel/air mix adjusted..uses all the gas at high speed but has excess at low speeds...find your adjusting screw and at med throttle slowly screw it clockwise until the engine starts to sputter then back it out until it starts to sputter again then continue to do this until you reach ideal mix where it runs the best it can..then go slowly through the throttle up and down..when set..unjust your idle speed screw to your ideal idle speed..if this dies not fix ..carb will bed cleaned or rebuilt. Good luck.. Note always push or pull your throttle handle slowly to position avoids gas load up causing sputter and backfire.

Mar 15, 2012 | Briggs & Stratton Briggs Stratton Vanguard...

1 Answer

50cc moped runs great until full throttle then boggs down-does not do it at 1/2 or 3/4 throttle


Check for good fuel flow to carburator. If so have a qualified technician look in the carb for debris blocking the main jet. this is very common when the vehicle sits for an extended period of time.

Dec 28, 2011 | RTO Gas Motor Scooter 50cc

2 Answers

50cc stop working after three miles, brand new, delivered today


have you checked that the spark plug is tight and that the ht lead is on the spark plug?

May 05, 2010 | RTO Gas Motor Scooter

4 Answers

Yumbo motor scooter


Hi and welcome to FixYa,

Appreciate the direct "Ask Me".

Initially, pls confirm that it uses a two-stroke 50CC engine. Additionally, your description "It refuses to rev beyond idle speeds." could indicate several conditions:
  • throttle up above idle speed, engine stalls/dies - fuel related issue, fuel starvation, clogged jets, nozzles, too much 2T oil, contaminated fuel (water). Basically a carb rebuilt;
  • throttle up above idle speed, no change in engine RPM - mechanical problem, possible broken accelerator/throttle cable, stuck plunger in carb, detached needle valve;
  • throttle up above idle speed, engine backfires/dies - electrical issue, check CDI, stators, trigger/pulse, their physical state/mounting, electrical connections;
  • throttle up above idle speed, engine hesitates/flat spot - air/vacuum issue, check rubber coupling from carb to intake manifold, blocked or absent air filter.
Good luck and Thank you for using FixYa.

Pls be informed that due to my current rank and rating, even a Helpful would be detrimental to my status. Should this solution not address your concern, it would be appreciated if you could just not rate it at all. Cheers.

Dec 28, 2008 | 2004 Yumbo Dakar 200

Not finding what you are looking for?
2005 Qianjiang QJ150 Logo

1,163 people viewed this question

Ask a Question

Usually answered in minutes!

Top Qianjiang Experts

TEKUSER
TEKUSER

Level 2 Expert

80 Answers

Arnie Burke
Arnie Burke

Level 3 Expert

4521 Answers

GQ-ROD

Level 3 Expert

635 Answers

Are you a Qianjiang Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...