Question about Jonway Motorcycles

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My Jonway YY50QT-6 49cc scooter voltage regulator burned up. I changed it but cant get any fire to the plug. I also changed the coil and cdi box but still dont get any spark the plug. Need help badly!

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  • Jonway Master
  • 661 Answers

Good chance it has blown the cdi fuse ,alot of Chinese bikes have a separate fuse for the cdi unit,if it's ok I would say the generator is fried if you have had a burned out regulator.so check it for scorched wires.

Posted on Apr 15, 2015

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Posted on Jan 02, 2017

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  • 3567 Answers

SOURCE: no spark 110cc engine wont start

Check the fuses. Next, check for spark but with a new spark plug. How good is the battery? If needed, add water to the battery cells enough to cover the top of the cell plates.Try a jump start from your car battery. Is the kill switch on? Check the operation of the ignition switch with a volt ohmmeter. You should be getting power into and out of the ignition switch.

If the bike doesn't start and run properly check the side stand kill switch. It kills the engine so that you don’t start out with the side stand down. Broken or out of adjustment, it would kill the spark. Check for a broken wire at the switch or coupler. Get a service manual and check out the electrical section. Some bikes have a diode integrated into the turn signal relay. Try moving the kill switch by hand. If that doesn’t work then wire a jumper around the switch to bypass it. If that doesn’t work, check out the relay.

Check the wiring harness. Did a wire come unplugged? Are all wires clean and with solid connections? Any abraded or pinched wires? Is the bike in neutral and the neutral light is lit up? If no neutral light, check the neutral switch and neutral switch wire on center casing.

Please rate this answer. Thanks

Posted on May 28, 2009

pippall
  • 1486 Answers

SOURCE: YY 150 Jonway cranks good but no start. Hits every

Yes the coil seems to be your problem.

Posted on Aug 01, 2009

  • 3567 Answers

SOURCE: cant get my 50cc scooter to fire up-no spark. any

  • Do you see spark? If not, check the side stand kill switch. It kills the engine so that you don’t start out with the side stand down. If broken or out of adjustment, it would kill the spark. Check for a broken wire at the side stand switch and coupler. Try moving the side stand kill switch by hand. If that doesn’t work then wire a jumper around the switch to bypass it.
  • Is the handlebar kill switch on? Is it shorted out?
  • Check the fuses.
  • Check the operation of the ignition switch and all kill switches with a volt ohmmeter. Check the wiring harness. Did a wire come unplugged? Are all wires clean and with solid connections? Any abraded or pinched wires?
  • Is the bike in neutral and the neutral light is lit up? If no neutral light, check the neutral switch and neutral switch wire on center or side casing.
  • If still no spark, get CDI system and coils checked at the dealers shop.

Posted on Aug 14, 2009

  • 1 Answer

SOURCE: i need to install a voltage regulator on my sportster.

IT IS YOUR IGNITION MODULE. Drill out the rivits and remove the plate that shows the 5 speed. Then pull out the inner plate and there is the module. Its like 200 bucks but worth it. Then under the bike, there is a plug. Un plug it and cut the cable. Save the pin out on the plug so you can match the new one up. Then reverse the removal for the install and turn the ignition on. You should see a red blinking light on the new module. It will start and you will see a solid red LED. Button it up however you want, just make sure its tight and right.;

Posted on Aug 31, 2009

  • 5 Answers

SOURCE: ktm 450sxf 07 wont start

buy a yamaha

Posted on Sep 25, 2009

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1 Answer

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.
Scooter Troubleshooting Scooter won start All about Scooters
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 won't my headlights dash lights and TAIL LIGHTS come back on??? I tried the REGULATOR, not the problem it just stopped on its own. It's a 150cc Jonway scooter


Hi, Crystal you may have a blown fuse or faulty lighting coil for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Jonway, despair not, for a mere $10 you can download another one. 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.
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What spark plug do i buy gor my jonway YY50QT-6 MOPED


Hi, Steve for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Jonway, despair not, for a mere zero $0 you can download another one. 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.
Amazon com NGK C7HSA SPARK PLUG GY6 49CC 50CC 150CC CHINESE SCOOTER PIT...
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http://www.carlsalter.com/pdfs/Jonway%20YY50QT-21.pdf
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http://www.carlsalter.com/pdfs/Jonway%2050CC%20ENGINE.pdf

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2 year old Jonway 125cc bike cuts out and kickstart fails


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1 Answer

1987 Honda shadow vt1100c no spark at any plug


The voltage on the coils is present except at the instant of firing. The interruption of the voltage is what causes the coil to fire. The cdi box is what causes the voltage interruption.
The interruption is very hard to detect. You are not the first to be stymied by that box. If you have access to an oscilloscope, I think you can see the pulse if it occurs.

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