20 Most Recent 2008 Jonway yy1505 Questions & Answers


It sounds like it might have the wrong exhaust or muffler. Check all clearances and any plastic parts that might be too close.

2008 Jonway... | Answered on May 29, 2014


Contact Jonway directly to inquire.

Jonway... | Answered on Jun 02, 2019


Hi, Anonymous and the usual suspects are:
1. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a preliminary reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead-acid batteries.
2. Failed alternator/generator and or voltage regulator.
3. Loose or corroded battery terminals and or cables especially the "NEGATIVE" cable, look for loose, corroded, or broken connectors inside the cable harness at "BOTH" ends.
4. A failed main circuit breaker or ignition switch, check for loose connections and continuity.
5. Failed system and or ignition relay, check for continuity.
6. Failed ignition coil, stator, magneto, ignition/electronic module.
7. Failed CKP, CPS, CMP, MAP, TPS, or BAS sensor, corroded, loose or broken wire connector pins/sockets.
8. Throttle cables and or idle speed improperly adjusted hot idle speed should be 950 RPM to 1000 RPM.
9. Faulty neutral, side stand or clutch lever safety switch.
10. Faulty or corroded kill switch.
11. Accelerator pump damaged or not working.
12. Water or dirt in the fuel system, carburetor or filter.
13. Restricted, blocked or kinked fuel line.
14. Fuel tank empty.
15. The gas cap is not venting properly or fuel tank venting system blocked, loosen the gas cap and go for a test ride.
16. A failed fuel pump, pressure regulator and or fuel injectors.
17. Vacuum line from the intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
18. Needle and seat stuck closed in the float bowl.
19. Petcock clogged or damaged.
20. Lean angle switch is faulty or needs adjustment.
21. Catastrophic engine failure, perform a compression test.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing 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
https://absolutelyscooters.net/manuals/Jonway%20YY50QT-6.pdf
SSR Motorsports

Jonway... | Answered on May 19, 2019


Hi, Wayne for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the 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 for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.google.com/search?q=Turn+signal+relay+location+Jonway+Madness+50&tbm=isch&source=univ&sa=X&ved=2ahUKEwjgppz129XhAhVDPq0KHTKuBN8QsAR6BAgJEAE&biw=1440&bih=757
https://www.youtube.com/watch?v=cJoOfSHUTiE
http://www.family-motorsports.net/GY6-50cc-150cc.pdf
Jonway 49cc Scooter Parts
Service Support China Jonway Group

Jonway... | Answered on Apr 16, 2019


Hi John. Not sure what model yours is but if its the JONWAY - YY125T-31 MADNESS, scooter then its a 4-stroke, air cooled 125cc

Best Regards

Ian

Jonway... | Answered on Mar 23, 2019


google

Jonway... | Answered on Oct 17, 2018


Hi, Allen there are few things you need to look at when trying to troubleshoot your scooter for power loss. How does it sound? If you run it wide open throttle when warmed up, does it peak out? or stutter? is it loud, or very quite the symptoms can help decide what to try. When you are going full throttle, the engine should get to a high RPM and sound smooth here are a few things you should look for:
1. Plugging air intake- will start well cold, but be hard to warm up and not reach top speed. The engine will stutter at high RPM.
2. Open air intake- to much air or air cleaner is disconnected- engine will not have power at high speed, make vacuum cleaner sound. Acts like it's running out of gas. ( sounds almost the same as a dirty carburetor.)
3. Plugged exhaust port the engine sounds and runs good, but has no power. Slow to take off. Same as plugged muffler, but if the muffler is plugged you get a very smooth exhaust note at idle. Humming instead of pop pop pop pop.
4. Fouled spark plug- backfire. If you get backfire, pretty good chance the plug is fouled.
5. On models with belts, the gear ratio drops as the belt gets thinner (most Honda's have belts).
6. On a moped with high mileage, the belt will cause slow top end speed if worn thin.
7. If you have a bike with chain drive in an oil bath and you "OVERFILL" the oil amount in the chaincase, that makes for slow running as it requires too much power to turn the oil.
8. If your engine does not rev up well and stutters or sputters, like when it is cold with the choke on, the engine is running too rich. (too much fuel).
9. Is the air filter soaked with oil? Clean with soap and water!
10. Is the air opening in the airbox plugged? Very common for a spider or mud wasp to build a nest in one of the intake holes.
11. On some scooters it is common to get a leaf stuck in the intake port of the airbox, causing a 10mph drop in top speed.
12. Don't try to adjust the screws on the side of the carb to get lean or rich, as they are for the idle circuit only.
13. The idle air screw should be about 1 1/2 turns out on most scooters.
14. Say your engine revs but kind of wheezes or acts like it runs out of gas it is common to have a buildup of hard carbon on the inside diameter of the hole in the main and pilot jets, and it must be carefully removed.
15. If your moped does not idle the pilot jet is likely plugged.
16. Anytime a moped has not been used for 1 year or more, and still has the same fuel in it, good chance you will need to clean the jets.
17. The poor quality of today's gasoline has made this a rather steady bet.
18. Mopeds are affected more than most vehicles because the small size hole the jet requires is easily plugged, even by thick oily fuel, or water.
19. Drain your carb once in awhile! Most have a screw of some type at the bottom (where the drain needs to be) of the carb.
20. Make sure the air boot to the airbox is not on wrong, kinked, hard and shrunken.
21. Don't oil the air filter if you got the stutters.
22. On some scooters, you can leave one snap loose on the airbox lid to allow it to crack open, to get full rpm.
23. "WARNING" too much lean out on the gas, and since the fuel cools the piston, the piston can "MELT"
24. Still slow? Check the muffler tip. Make sure no carbon buildup is inside the tip, stick something in as far as it will go.
25. Common on some scooters to have the tip bent over on a curb, then carbon up solid. common of all types to have the whole muffler plug.
26. When you have the muffler off, is it heavy?
27. Can you get the baffle out to see if the holes are plugged?
28. Check the exhaust port on the cylinder.
29. If you can't see all the way into the piston, use a mirror and a flashlight to make sure the piston is ok and the port is not plugged where it meets the piston.
30. Common on all models to plug here, Just scrape it out so the hole is full size again.
31. Don't worry about the small film on the inside of the port, I am talking about a very thin film that forms a wall in the exhaust port right next to the piston.
32. A 1 1/2 inch hole can be reduced to the size of a pea...... With a thin film of carbon.
33. If you can see the piston ok, it's not the problem.
34. If you are in doubt regarding your exhaust pipe being plugged, put your hand behind the muffler to see how much pressure is expelled. compare to another bike.
35. It should blow pretty good and have a distinct pop pop pop pop sound while idling, not a steady humming.
For more information about your question and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
Best performance for jonway yy50qt 6 gy6 cvt
How to Make Your 49cc Scooter Faster than 150cc Visit us on at...
http://www.family-motorsports.net/GY6-50cc-150cc.pdf
https://www.carlsalter.com/mcpdf/Jonway%20YY50QT-6.pdf
http://absolutelyscooters.net/pdf/CGEN_dawg_scooter_manual.pdf

Jonway... | Answered on Aug 14, 2018


dirty carburetor is my guess. Also check the air filter and that the air filter box is not blocked. Many years ago I rode a 500cc Kawasaki H1 Triple. I drove to the Isle of Man TT to watch the races. The bike was really sluggish and needed a lot of throttle. I was working on the bike at a campsite and a guy pointed out that a sponge I had taken to clean the bike, I had stored it in a gap between the seat and the tank. It was the air filter intake! :>D

Motor Scooter Electric Scooter YY50QT 6 Jonway Motorcycle

Jonway... | Answered on Jul 31, 2018


Hi, Cinn "probably" anyways the answer to this question is way above my pay grade for this situation, I would call or visit my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry.
Good luck and have a wonderful day.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Jonway... | Answered on May 01, 2018


If the old belt was shredded the pieces go into the clutch, and keeps it from releasing, you need to take it apart and clean it out.

Jonway... | Answered on Mar 08, 2018


Orange is probably turn sig and blue is high beam

Jonway... | Answered on Jan 13, 2018


Hi, Theresa loved your novella very quaint, the vast majority of service, parts fiche, and owners manuals on the internet are "FREE" to download and all service manuals contain wiring diagrams in the back pages. The rest usually charge a modest fee of $15 and there is a handful of obscure, rare, obsolete, and very old models that are no longer or never were available and some were never printed in English. The Indian and Philippine markets are usually in E-book format only, for these rare occasions I shall look on eBay and find the cheapest one available. Most of the manuals will cover your exact make, model, and year otherwise one will be provided that comes as close as possible to your bike and will have most of the same info that an exact manual would have. If there is no $ sign after the manual link it is free to download.
To download your manual for viewing or printing please click on the blue links below. Good luck and have a wonderful day
2013 Jonway YY50QT 6 vacuum line routing Google Search
Fuel and Vac Line Tutorial
How to simplify vacuum hoses on scooter
Jonway YY50QT 21 FUEL LINE
http://www.family-motorsports.net/GY6-50cc-150cc.pdf
http://absolutelyscooters.net/manuals/Jonway%20YY50QT-6.pdf
http://absolutelyscooterparts.net/pdf/CGEN_dawg_scooter_manual.pdf

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e




Jonway... | Answered on Jan 10, 2018


Hi, Angel the answer to this question is way above my pay grade for this situation, I would call or visit my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
http://www.family-motorsports.net/GY6-50cc-150cc.pdf
Service Support China Jonway Group
http://absolutelyscooterparts.net/pdf/CGEN_dawg_scooter_manual.pdf
Jonway YY250T Specs
Jonway Wikipedia

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Jonway... | Answered on Dec 25, 2017


Hi, Abdul for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the 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 for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
Jonway Master 250 spark plug location Google Search
How to change your Spark Plug on Scooter Part 1
http://www.family-motorsports.net/GY6-50cc-150cc.pdf
Jonway 250cc Scooter Parts
http://absolutelyscooterparts.net/pdf/CGEN_dawg_scooter_manual.pdf

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


Jonway... | Answered on Nov 26, 2017


Hi, Mark the answer to this question is way above my pay grade for this situation, I would call or visit my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
Bypass stupi chinese alarm
Jonway madness problem
http://www.family-motorsports.net/GY6-50cc-150cc.pdf
Service Support China Jonway Group
http://absolutelyscooterparts.net/pdf/CGEN_dawg_scooter_manual.pdf

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Jonway... | Answered on Nov 25, 2017


Hi, Don for more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
Jonway Scooter Parts
Jonway 49cc Scooter Parts
Jonway Scooters Parts
YY50QT 6 4T Jonway Scooter Parts Racing Planet USA
AKA Roketa Scooter MC 07 50 Baja SC50 Strada RX 50 Jalon JL50QT 21 falcon...

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Jonway... | Answered on Nov 12, 2017


Hi, Anonymous and the usual suspects are:
1. Fuel tank empty.
2. The fuel tank has old dead gas.
3. Fuel tank bottom contaminated with ethanol sludge, dirt, water, rust, etc.
4. Fuel supply valve/petcock turned off.
5. Fouled spark plugs.
6. Engine flooded as a result of overuse of the choke.
7. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
8. Fuel valve/petcock or filter clogged.
9. Fuel line to carburetor or throttle body pinched, kinked or blocked.
10. Carburetor float stuck.
11. Fuel injectors clogged.
12. Fuel injectors stuck open.
13. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a cursory reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead-acid batteries.
14. 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.
15. Loose or corroded wire connection at the coil or plug between ignition sensor and ECM module.
16. Spark plug cables in bad condition and shorting check for spark leakage in the dark, cable connections loose, or connected to the wrong cylinders.
17. Ignition timing incorrect due to a faulty ignition coil, ignition module or MAP, CMP, CKP, O2, TPS, ETP, IAC sensors.
18. Faulty neutral, clutch, kickstand safety switch.
19. Faulty fuel pump or fuse or relay.
20. A stuck bent or burnt valve.
21. Tilt sensor needs a reset.
22. Security system not disarming alarm needs a reset.
23. Check for engine trouble codes.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
cranks but wont start
Scooter Troubleshooting Scooter won start All about Scooters
http://www.family-motorsports.net/GY6-50cc-150cc.pdf
YY50QT 6 4T Jonway Scooter Parts Racing Planet USA
http://absolutelyscooterparts.net/pdf/CGEN_dawg_scooter_manual.pdf

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Jonway... | Answered on Oct 16, 2017

Not finding what you are looking for?
2008 Jonway yy1505 Logo

1 questions posted

Ask a Question

Usually answered in minutes!

Popular Products

Top Jonway Experts

Arnie Burke
Arnie Burke

Level 3 Expert

5884 Answers

Steven Wander
Steven Wander

Level 3 Expert

594 Answers

Andrew Taylor
Andrew Taylor

Level 3 Expert

27412 Answers

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

Answer questions

Manuals & User Guides

View Most Popular

Chopper Type 6 Jonway

  • Chopper Type 6 Jonway

Most Popular Question

125cc twist go scooters number plate

  • Motorcycles
Loading...