Question about Qianjiang QJ150 Motorcycles

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My gator 150cc scooter is hard to start... i've replaced the spark plug,changed the oil,checked the fule filter,cleaned the air filter,changed the battery and checked all my hoses. having done all these things im still not sure of the problem. Once i've jumed it off and finally get it started it seems lean... After running for a while every thing seems to run ok, then i turn it off and after sitting for a while im back at square one with the whole hard to start process. please help!

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  • Qianjiang Master
  • 40,757 Answers

Hi, Grippatl and the usual suspects are:
1. Spark plugs in bad condition or have an improper gap or are partially fouled.
2. Spark plug cables in bad condition.
3. Battery damaged or nearly discharged, should have 12.5 volts.
4. 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.
5. Throttle controls not adjusted correctly.
6. Water or dirt in the fuel system.
7. Water or dirt in the carburetor.
8. Faulty fuel pump.
9. Intake air leak.
10. Fuel tank vent hose and vapor valve plugged, or fuel line closed off, restricting fuel flow.
11. Enricher valve inoperative.
12. Engine lubricant to heavy (winter operation).
13. Ignition is not functioning properly (possible sensor failure).
14. Faulty ignition coil.
15. Valves sticking.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
Troubleshooting
Scooter Troubleshooting Scooter won start All about Scooters
http://www.family-motorsports.net/GY6-50cc-150cc.pdf
http://www.partsprousa.com/
TaoTao 150cc Scooter Owners Manual

Posted on Jun 02, 2017

6 Suggested Answers

6ya6ya
  • 2 Answers

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

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Posted on Jan 02, 2017

  • 12 Answers

SOURCE: 1974 honda cb550 will not run?

• The first thing to do with ANY engine that has sat for any longer than a couple of months is to dump ALL the fuel in the tank and carb(s). ALL OF IT !! You'll want to refill with some high priced fuel that has fuel system cleaners (Like Chevron with Techron) not becasue you need high-test fuel, but because you need the cleaners. It's ether that or disassemble the carbs and clean out jets you can't find much less see. Your choice. The carb kits alone will cost you about $50 so a tank of high-test is looking pretty good, huh?

• Now the fact that you tried to crank the engine with old fuel has fouled the sparkplugs. All of them. Go buy all new sparkplugs.

Posted on Mar 21, 2009

  • 6 Answers

SOURCE: honda cbr 600 wont start

hi, each lead has the specific number on it. if you do this correctly then they genrally give you an idea to where the sit in the coils( the way they bend :-) ) also i believe the coils are better off been attached to the frame once you are sure leads are in corect order and possitioned correctly in the coils.i just presumed the coils neaded earthing. make sure battery is pleny charged as a bad battery can just hinder. it is also very easy to flood the bike so just check the plugs again. if they are unusually wet then dry them off and try again . otherwise maybe try cleaning all electics.

hope this somehow helped
gavin barraclough

Posted on Apr 26, 2009

  • 1 Answer

SOURCE: I have a 150cc jonway scooter. When I open it up

I found that if I run 87 octane gasoline the engine accelerates up to full speed without the skipping and bogging down at any point it is running. It is worth trying. also try putting some "Sta-bil" fuel stabilizer in the gasoline - it has the ability to keep the carbureator cleaner. Not just during the time you are storing it, but rather all the time.

Posted on Jun 03, 2009

Benimur
  • 6966 Answers

SOURCE: 150CC Roketa Scooter

Hi and welcome to FixYa,

On most versions of Roketa 150cc engines, the choke is automatic and electrically driven..  It is integrated with the carburetor.

Good luck and thank you for asking FixYa.

Posted on Jun 29, 2009

  • 1 Answer

SOURCE: Sunl 150cc Won't start

sounds like the CDI module. I've had it go out on a couple scoots I've owned. Take it to a shop and have them check it

Posted on Dec 31, 2009

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Why wont my 50cc gator moped start has fuel and spark


Hi, Ruth and the usual suspects are:
1. Fuel tank empty.
2. Fuel supply valve/petcock turned off.
3. Fouled spark plugs.
4. Engine flooded as a result of overuse of the enricher.
5. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
6. Fuel valve/petcock or filter clogged.
7. Fuel line to the carburetor or throttle body pinched or kinked.
8. Carburetor float stuck.
9. Fuel injectors clogged.
10. Severely discharged or damaged battery you need 12.5 volts or better and be able to pass a load test if necessary.
11. 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.
12. Loose or corroded wire connection at the coil, battery or plug between ignition sensor and CDI box.
Spark plug cables in bad condition and shorting check for leakage in the dark, cable connections loose, or connected to the wrong cylinders.
13. Ignition timing incorrect due to a faulty MAP, CKP, O2, TPS, sensors.
14. Faulty neutral, clutch lever, or kickstand safety switch.
15. Faulty fuel pump or fuse or relay.
16. Faulty CDI box.
17. A stuck bent or burnt valve.
18. Tip over sensor needs a reset.
19. Check for engine trouble codes.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
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Fix Chinese 49cc Scooter that won start
http://www.family-motorsports.net/GY6-50cc-150cc.pdf
Service Support China Jonway Group
http://www.dirtcheapmotorsports.com/jonway-gator-50-moped.html

Feb 20, 2017 | Jonway Motorcycles

1 Answer

What would keep my gator 50cc-s not start HAS SPARK AND FUEL


Hi, Ruth and the usual suspects are:
1. Fuel tank empty.
2. Fuel supply valve/petcock turned off.
3. Fouled spark plugs.
4. Engine flooded as a result of overuse of the enricher.
5. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
6. Fuel valve/petcock or filter clogged.
7. Fuel line to the carburetor or throttle body pinched or kinked.
8. Carburetor float stuck.
9. Fuel injectors clogged.
10. Severely discharged or damaged battery you need 12.5 volts or better and be able to pass a load test if necessary.
11. 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.
12. Loose or corroded wire connection at the coil, battery or plug between ignition sensor and CDI box.
Spark plug cables in bad condition and shorting check for leakage in the dark, cable connections loose, or connected to the wrong cylinders.
13. Ignition timing incorrect due to a faulty MAP, CKP, O2, TPS, sensors.
14. Faulty neutral, clutch lever, or kickstand safety switch.
15. Faulty fuel pump or fuse or relay.
16. Faulty CDI box.
17. A stuck bent or burnt valve.
18. Tip over sensor needs a reset.
19. Check for engine trouble codes.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
Jonway Gator 50 moped
Service Support China Jonway Group http://www.family-motorsports.net/GY6-50cc-150cc.pdf
Fix Chinese 49cc Scooter that won start
Scooter Troubleshooting Scooter won start All about Scooters

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1 Answer

Why does my 150cc taotao scooter stall when i give it gas


Replace the spark plug or replace the gas filter. Check your spark plug wires for corrosion.

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Low pickup pulsar 150


chain may be hard in adjustment.
change engine oil every 3 months
if tyres are thicker than pick up will be a problem.
get air filter cleaned or replaced if necessary.
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check magnet also as it might be older
carburetter settings need to be checked

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Stalls when hot


check coils and pickups...both of these can break down when hot.

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I have a mcculloch 3725 trimmer that has always started on the second pull for the three years that I have owned it. Last week it stopped while stimming. I have cleaned the plug checked there is a spark...


ok 2% oil ????? you need a 30 to 1 mix in that,,,
have you striped the carb and cleaned it out??? have you checked that the fule filter is clear??? have you checked the air filter is clean???
take off the air filter and try tipping a cap full of fule into the open carb right into the engine and try starting it up on that,,,if it go's its all down to not getting fule to the motor if it dont hmmmm!

Jun 20, 2010 | Garden

1 Answer

I have a 6.5 hp briggs and stratton quantum pressure washer and it was working fine two months ago. Yesterday, I tried to start it and it would not start. I replaced the spark plug and air filter. If I...


its not getting any fule to carb strip down all fule lines and any fule taps to check there clean and fule flows freely then strip carb and clean out all jets,,,dont go poking wire into the jets it could distroy them use compressed air or card cleaner on jets

Mar 28, 2010 | Garden

1 Answer

My wife has a 150cc TnGo verona scooter. It sat


You have enough 2 stroke in the fuel? 50:1 ratio oil:fuel or more... it is a cheap engine needs extra lubrication..
-----
Is the spark plug clean? --- Is the HT lead connector to the sparkplug fine or has it come loose? --- Check the air filter - it could be wet or dirty or clogged - replace it if it has gotten wet or is dirty, on such a new bike it should look white as the driven snow... --- spray some carb cleaner down the intake while cranking the engine, and rev it up while spraying the cleaner in there, maybe you have some gunk in the carb messing up the jetting. --- Adjust the Idle screw to increase the idle (but not so high that the bike is tugging to ride off) --- Check through that lot and tell me how you get on.


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2 Answers

Sunl 150cc Won't start


sounds like the CDI module. I've had it go out on a couple scoots I've owned. Take it to a shop and have them check it

Oct 07, 2009 | Transport Schwinn Rechargeable Portable ...

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SUNL 50CC SCOOTER


You may need to adjust the fuel/air ratio. There is a small screw under the pull starter facing horizontally (its behind the plastic air filter cover, but accessable) adjust either clockwise or counter clockwise in small increments and give it gas and see if it dies or boggs down. Also check that spark plug is clean and not fouled, and air filter is clean and oiled.

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