Jonway Motorcycles - Recent Questions, Troubleshooting & Support


Hi, Jklandis 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 Keeway, 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=Wiring+diagram+Jonway+SL150+Fashion+Sport&tbm=isch&source=univ&sa=X&ved=2ahUKEwi_lNfdsYHlAhVIOK0KHWzoAFsQsAR6BAgJEAE&biw=1440&bih=757
https://www.motorcycle-manual.com/jonway/
https://www.carlsalter.com/jonway-service-manuals.asp
https://www.monsterscooterparts.com/scooterparts/street-brands/jonway-parts
https://absolutelyscooters.net/pdf/CGEN_dawg_scooter_manual.pdf

Jonway... | Answered on Oct 04, 2019


Hi, Anonymous engine "BOG" is mainly caused by a rich air and lean fuel condition but it can also be caused by a lean air and rich fuel condition this situation rarely occurs and is only caused by the misinformed weekend warrior that owns a toolbox. If the bike has been sitting for months or years you will have to completely disassemble the carburetor and submerge the parts (except rubber parts) in "Carburetor Dip" It usually comes in a gallon bucket with a wire mesh basket that can be purchased at any automotive store. If it is not the above scenario then the following explanation will apply.
The more you open your throttle the more vacuum you are creating in your carburetor venturi and your intake manifold. When you are operating at higher RPM any unmetered air that leaks into your system can become more obvious.
Unmetered air is the air that is getting into your system after the fuel has been delivered. If you have unmetered air getting into Suzuki Raider 150 your system between the butterfly/slide of the carburetor and the cylinder head this will create a lean condition.
All of the rubber components of the fuel system like vacuum hoses and intake manifold that you mount the carburetor to are made of rubber. If none of these components has been changed they are more than likely highly degraded and probably cracked in places to allow unwanted-unmetered-contaminated air into the combustion chamber. Check all of your vacuum lines and vacuum plugs for carburetor synchronization. The vacuum plugs are in the head just after the rubber intake manifolds. The petcock has a vacuum line as well as part of the emission system.
1. Check the intake manifold for fissures.
2. Ensure the bands used to tighten the manifolds down on the intake are secure and have not bound up the manifold.
3. Make sure air box fittings are not warped and fit completely over the carburetor.
Your airbox is metering air and is the first step in the process of consuming air and fuel. The system requires the resistance of the air filter in order to get the proper vacuum to "SUCK" the fuel out of the float bowl and create the proper venturi effect.
Improper mounting and sealing of the airbox will create a small lean effect. This might seem like no big deal but you are inviting dust and debris in your engine that is doing slow damage by not having proper fitment. Fix it so you know it's not contributing to your issue. Pick the low-hanging fruit first.
Do not go and start adjusting anything at this point. It ran fine before. There is something wrong with the assembly or a component. Do not adjust your floats. Get it back to where it was. The moment you start tweaking everything is the moment you lose OEM settings which are a must-have for fine-tuning and maximum performance.
Fine-tuning your carburetor and multi carb syncing come at the very end following the proper procedure established by the Carburetor Gods.
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.killermotorsports.com/full-throttle-engine-bogs-out-scooter/
https://www.youtube.com/watch?v=PLYv7-Nogyw
https://www.carlsalter.com/jonway-service-manuals.asp
https://www.monsterscooterparts.com/scooterparts/street-brands/jonway-parts
https://absolutelyscooters.net/pdf/CGEN_dawg_scooter_manual.pdf

Jonway... | Answered on Oct 04, 2019


Hi, Anonymous 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=Wiring+diagram+Jonway+150&tbm=isch&source=univ&sa=X&ved=2ahUKEwioxvKBr4HlAhVPKawKHYzPAK4QsAR6BAgIEAE&biw=1440&bih=757
https://www.motorcycle-manual.com/jonway/
https://www.carlsalter.com/jonway-service-manuals.asp
https://www.monsterscooterparts.com/scooterparts/street-brands/jonway-parts
https://absolutelyscooters.net/pdf/CGEN_dawg_scooter_manual.pdf

Jonway... | Answered on Oct 04, 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. 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.
3. Faulty main circuit breaker and or connections.
4. Faulty ignition coil and or connections.
5. Faulty spark plug, oil or gas fouled, wrong heat range or service type, wrong gap, loose in the cylinder head, broken electrode or insulator.
6. Faulty spark plug cables, leaking or broken, internal damage check for spark leakage in the dark.
7. Faulty ignition module, switch, CKP, MAP, CMP, sensor and or any connector in the ignition circuit could have corroded, loose, or broken pins/sockets
8. Burnt exhaust valve or air leak in the exhaust system.
9. Improper valve clearance (too tight).
10. Check for generated diagnostic 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.
http://scootdawg.net/showthread.php?t=56165
http://chinesescoots.forumwise.com/chinesescoots-ntopic14673.html
http://www.family-motorsports.net/GY6-50cc-150cc.pdf
https://www.scooterdomain.com/chinese-parts/by-brand/jonway/jonway-150cc-scooter-parts
https://absolutelyscooters.net/pdf/CGEN_dawg_scooter_manual.pdf

Jonway... | Answered on Oct 04, 2019


Hi, Toomeytoome derestrict is a negative term rider's use to express their wish to improve performance on their bike or scooter. Depending on the country and motor vehicles laws some bikes and scooters are designed to conform with said laws and their performance is slightly lower than other countries. All vehicles in the world are designed to perform at 75-80% of their maximum potential, this ensures the longevity of the engine. Derestricting or improving performance is always possible on any vehicle but the tradeoff of engine longevity numbers go down, how much depends on the number and type of performance upgrades. Your local dealership or reputable independent shop are best equipped to provide you with technical data and willingness to comply with your needs.
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://itstillruns.com/remove-limits-speed-150cc-scooter-7589599.html
https://www.youtube.com/watch?v=adST2DizCGM
https://www.carlsalter.com/jonway-service-manuals.asp
https://www.monsterscooterparts.com/scooterparts/street-brands/jonway-parts
https://www.manualslib.com/manual/1226619/Jonwa-Aa05f.html

Jonway... | Answered on Oct 02, 2019


Hi, Gail310 and the usual suspects are:
1. Fouled spark plugs.
2. 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.
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 module.
5. Spark plug cables in bad condition, shorting/leaking, spark plug cable connections loose check for spark leakage in the dark.
6. A faulty ignition coil or electronic control module.
7. Faulty pulse coil.
8. Faulty CKP, CMP, or BAS sensor.
9. Faulty ignition switch.
10. Faulty run/off switch
11. Tilt sensor needs a reset.
12. Security alarm failing to disarm needs reset
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.youtube.com/watch?v=PnzsuRAV-Ro
https://www.youtube.com/watch?v=7hT4ex539N4
https://www.carlsalter.com/jonway-service-manuals.asp
https://www.monsterscooterparts.com/scooterparts/street-brands/jonway-parts
https://www.manualslib.com/manual/1226619/Jonwa-Aa05f.html

Jonway... | Answered on Oct 02, 2019


Hi, Rjmuller engine "BOG" is mainly caused by a rich air and lean fuel condition but it can also be caused by a lean air and rich fuel condition this situation rarely occurs and is only caused by the misinformed weekend warrior that owns a toolbox. If the bike has been sitting for months or years you will have to completely disassemble the carburetor and submerge the parts (except rubber parts) in "Carburetor Dip" It usually comes in a gallon bucket with a wire mesh basket that can be purchased at any automotive store. If it is not the above scenario then the following explanation will apply.
The more you open your throttle the more vacuum you are creating in your carburetor venturi and your intake manifold. When you are operating at higher RPM any unmetered air that leaks into your system can become more obvious.
Unmetered air is the air that is getting into your system after the fuel has been delivered. If you have unmetered air getting into Suzuki Raider 150 your system between the butterfly/slide of the carburetor and the cylinder head this will create a lean condition.
All of the rubber components of the fuel system like vacuum hoses and intake manifold that you mount the carburetor to are made of rubber. If none of these components has been changed they are more than likely highly degraded and probably cracked in places to allow unwanted-unmetered-contaminated air into the combustion chamber. Check all of your vacuum lines and vacuum plugs for carburetor synchronization. The vacuum plugs are in the head just after the rubber intake manifolds. The petcock has a vacuum line as well as part of the emission system.
1. Check the intake manifold for fissures.
2. Ensure the bands used to tighten the manifolds down on the intake are secure and have not bound up the manifold.
3. Make sure air box fittings are not warped and fit completely over the carburetor.
Your airbox is metering air and is the first step in the process of consuming air and fuel. The system requires the resistance of the air filter in order to get the proper vacuum to "SUCK" the fuel out of the float bowl and create the proper venturi effect.
Improper mounting and sealing of the airbox will create a small lean effect. This might seem like no big deal but you are inviting dust and debris in your engine that is doing slow damage by not having proper fitment. Fix it so you know it's not contributing to your issue. Pick the low-hanging fruit first.
Do not go and start adjusting anything at this point. It ran fine before. There is something wrong with the assembly or a component. Do not adjust your floats. Get it back to where it was. The moment you start tweaking everything is the moment you lose OEM settings which are a must-have for fine-tuning and maximum performance.
Fine-tuning your carburetor and multi carb syncing come at the very end following the proper procedure established by the Carburetor Gods.
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.killermotorsports.com/full-throttle-engine-bogs-out-scooter/
https://www.youtube.com/watch?v=PLYv7-Nogyw
https://www.carlsalter.com/jonway-service-manuals.asp
https://www.monsterscooterparts.com/scooterparts/street-brands/jonway-parts
https://www.manualslib.com/manual/1226619/Jonwa-Aa05f.html

Jonway... | Answered on Oct 02, 2019


Hi, Anonymous and the usual suspects are:
1. Oil tank/system overfilled.
2. Faulty breather valve.
3. Engine breather hose bent, pinched, kinked, etc.
4. Air filter has too much "pre-oil".
5. Crankshaft seal failure allowing transmission fluid to migrate.
6. Blow by drain tube cracked/split or filled to capacity.
For more information about your question 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.scootershack.co.uk/threads/oil-in-airbox.33656/
http://scootdawg.proboards.com/thread/30698/oil-leaking-out-filter-housing
https://www.carlsalter.com/jonway-service-manuals.asp
https://www.monsterscooterparts.com/scooterparts/street-brands/jonway-parts
https://www.manualslib.com/manual/1226619/Jonwa-Aa05f.html

Jonway... | Answered on Oct 02, 2019


Hi, Anonymous 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.
https://www.carlsalter.com/jonway-service-manuals.asp
https://www.monsterscooterparts.com/scooterparts/street-brands/jonway-parts
https://www.manualslib.com/manual/1226619/Jonwa-Aa05f.html
https://www.scooterdomain.com/chinese-parts/by-brand/jonway/jonway-49cc-scooter-parts
https://en.wikipedia.org/wiki/GY6_engine

Jonway... | Answered on Oct 02, 2019


Hi, Anonymous 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.
http://chinesescoota.forumwise.com/chinesescoots-post-145994.html
https://www.youtube.com/watch?v=KVmO9pVFYN8
https://www.carlsalter.com/jonway-service-manuals.asp
https://www.monsterscooterparts.com/scooterparts/street-brands/jonway-parts
https://www.manualslib.com/manual/1226619/Jonwa-Aa05f.html

Jonway... | Answered on Oct 02, 2019


Hi, Anonymous 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?sa=X&q=Vacuum+line+routing+2011+Jonway+150cc&tbm=isch&source=univ&ved=2ahUKEwiOiLWTs_7kAhWJm1kKHQcmBB0QsAR6BAgEEAE&biw=1440&bih=757
https://www.youtube.com/watch?v=G7GA1sGnytU
https://www.carlsalter.com/jonway-service-manuals.asp
https://www.monsterscooterparts.com/scooterparts/street-brands/jonway-parts
https://www.manualslib.com/manual/1226619/Jonwa-Aa05f.html

Jonway... | Answered on Oct 02, 2019


Hi, Anonymous 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=Wiring+diagram+2008+Jonway+laguna+250cc+Cruiser&tbm=isch&source=univ&sa=X&ved=2ahUKEwjrn76-sv7kAhVuoFkKHab6AkQQsAR6BAgJEAE&biw=1440&bih=757
https://www.motorcycle-manual.com/jonway/
https://www.carlsalter.com/jonway-service-manuals.asp
https://www.monsterscooterparts.com/scooterparts/street-brands/jonway-parts
https://www.manualslib.com/manual/1226619/Jonwa-Aa05f.html

Jonway... | Answered on Oct 02, 2019


Hi, Anonymous 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.youtube.com/watch?v=XakWj8YM_P4
https://www.youtube.com/watch?v=lJRgdol6p90
https://www.carlsalter.com/jonway-service-manuals.asp
https://www.monsterscooterparts.com/scooterparts/street-brands/jonway-parts
https://www.manualslib.com/manual/1226619/Jonwa-Aa05f.html

Jonway... | Answered on Oct 02, 2019


Hi, Bub 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.youtube.com/watch?v=eq6CFMfwSno
http://aggielandscoots.com/scoots-scooter-services-and-repair/
https://www.carlsalter.com/jonway-service-manuals.asp
https://www.monsterscooterparts.com/scooterparts/street-brands/jonway-parts
https://absolutelyscooters.net/pdf/CGEN_dawg_scooter_manual.pdf

Jonway... | Answered on Oct 02, 2019


Hi, Anonymous before testing any electrical component in the Charging System it is "IMPERATIVE" that you have a fully charged battery of 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 type batteries fall into this scenario more so than lead-acid batteries.
1. 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.
2. To check the regulator unplug it from the stator. Take a test light and clip it to the negative terminal of the battery and then touch first one pin and then the other on the plug that goes to the regulator. If you get even the slightest amount of light from the test light the regulator is toast.
To do this with a meter: black lead to battery ground, red lead to each pin on the plug, start with the voltage scale higher than 12vdc and move voltage scale down in steps for each pin. Any voltage is a bad regulator.
3. On the other part of the disconnected regulator plug. Set the multimeter for Ohms x1 scale and measure for resistance across the pins of the stator. You should read something around 0.1 to 0.2 ohms for a 32 amp system.
4. Then check for continuity between each pin on the plug and frame/engine ground. The meter needle should not move (infinite resistance)(digitals will show infinite resistance) if the meter needle does move (indicating continuity)(digitals will show some resistance), recheck very carefully. If the meter still shows continuity to ground the stator is shorted (bad).
5. Set the meter to read A/C volts higher than 30 volts (the scale setting for voltage should always be higher than the highest voltage you expect or you may fry the meter). Start the bike, and measure from one pin to the other on the plug (DO NOT cross the multimeter probes! - touch them to each other). You should read roughly 16-20 vac per 1,000 rpm.
6. If the battery was good under load test, if the stator is NOT shorted to ground, and the stator is putting out A/C voltage, then the regulator is bad (most likely even if passed step 2)
For more information about your question 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.youtube.com/watch?v=e2fL5DOSK-w
https://www.youtube.com/watch?v=xS58b5jZ0ic
https://www.carlsalter.com/jonway-service-manuals.asp
https://www.monsterscooterparts.com/scooterparts/street-brands/jonway-parts
https://www.manualslib.com/manual/1226619/Jonwa-Aa05f.html

Jonway... | Answered on Oct 02, 2019


Hi, Leigh tail light issues are relatively easy to diagnose and repair always check the tail light fuse first and make sure you have power on both sides of the fuse holder and the usual suspects are:
1. Tail light bulb element is broken.
2. Tail light bulb soldered contacts are extremely worn down.
3. Tail light bulb socket corroded.
4. Tail light bulb socket has no power and or ground.
5. Tail light wiring harness damaged from the rear tire.
6. Tail light rear fender wiring harness connector faulty due to corroded, broken, or loose pins/sockets.
For more information about your issue and valuable "FREE" downloads that you need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
http://chinesescoots.forumwise.com/chinesescoots-post-173431.html
https://www.scootershack.co.uk/threads/tail-light-not-working-but-brake-light-works.34789/
https://www.carlsalter.com/jonway-service-manuals.asp
https://www.monsterscooterparts.com/scooterparts/street-brands/jonway-parts
https://www.manualslib.com/manual/1226619/Jonwa-Aa05f.html

Jonway... | Answered on Oct 02, 2019


Hi, Lenia 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=Fuel+line+routing+Jonway+50&tbm=isch&source=univ&sa=X&ved=2ahUKEwirwPGOmf7kAhUwrVkKHf3oADQQsAR6BAgFEAE&biw=1440&bih=757
https://www.youtube.com/watch?v=U3-zbOM3zxk
https://www.carlsalter.com/jonway-service-manuals.asp
https://www.monsterscooterparts.com/scooterparts/street-brands/jonway-parts
https://www.manualslib.com/manual/1226619/Jonwa-Aa05f.html

Jonway... | Answered on Oct 02, 2019


Hi, Theaces 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=Open+the+seat+Jonway+150&tbm=isch&source=univ&sa=X&ved=2ahUKEwjEnOLhl_7kAhUCvFkKHQNrDI4QsAR6BAgIEAE&biw=1440&bih=757
https://www.youtube.com/watch?v=qCT8QaHhgDM
https://www.carlsalter.com/jonway-service-manuals.asp
https://www.monsterscooterparts.com/scooterparts/street-brands/jonway-parts
https://www.manualslib.com/manual/1226619/Jonwa-Aa05f.html

Jonway... | Answered on Oct 02, 2019


Hi, Peter_messer engine "BOG" is mainly caused by a rich air and lean fuel condition but it can also be caused by a lean air and rich fuel condition this situation rarely occurs and is only caused by the misinformed weekend warrior that owns a toolbox. If the bike has been sitting for months or years you will have to completely disassemble the carburetor and submerge the parts (except rubber parts) in "Carburetor Dip" It usually comes in a gallon bucket with a wire mesh basket that can be purchased at any automotive store. If it is not the above scenario then the following explanation will apply.
The more you open your throttle the more vacuum you are creating in your carburetor venturi and your intake manifold. When you are operating at higher RPM any unmetered air that leaks into your system can become more obvious.
Unmetered air is the air that is getting into your system after the fuel has been delivered. If you have unmetered air getting into Suzuki Raider 150 your system between the butterfly/slide of the carburetor and the cylinder head this will create a lean condition.
All of the rubber components of the fuel system like vacuum hoses and intake manifold that you mount the carburetor to are made of rubber. If none of these components has been changed they are more than likely highly degraded and probably cracked in places to allow unwanted-unmetered-contaminated air into the combustion chamber. Check all of your vacuum lines and vacuum plugs for carburetor synchronization. The vacuum plugs are in the head just after the rubber intake manifolds. The petcock has a vacuum line as well as part of the emission system.
1. Check the intake manifold for fissures.
2. Ensure the bands used to tighten the manifolds down on the intake are secure and have not bound up the manifold.
3. Make sure air box fittings are not warped and fit completely over the carburetor.
Your airbox is metering air and is the first step in the process of consuming air and fuel. The system requires the resistance of the air filter in order to get the proper vacuum to "SUCK" the fuel out of the float bowl and create the proper venturi effect.
Improper mounting and sealing of the airbox will create a small lean effect. This might seem like no big deal but you are inviting dust and debris in your engine that is doing slow damage by not having proper fitment. Fix it so you know it's not contributing to your issue. Pick the low-hanging fruit first.
Do not go and start adjusting anything at this point. It ran fine before. There is something wrong with the assembly or a component. Do not adjust your floats. Get it back to where it was. The moment you start tweaking everything is the moment you lose OEM settings which are a must-have for fine-tuning and maximum performance.
Fine-tuning your carburetor and multi carb syncing come at the very end following the proper procedure established by the Carburetor Gods.
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.ifixit.com/Answers/View/22668/Why+is+the+engine+bogging+under+acceleration
https://www.killermotorsports.com/full-throttle-engine-bogs-out-scooter/
https://www.carlsalter.com/jonway-service-manuals.asp
https://www.monsterscooterparts.com/scooterparts/street-brands/jonway-parts
https://www.manualslib.com/manual/1226619/Jonwa-Aa05f.html

Jonway... | Answered on Oct 02, 2019


Hi, Ronald_fairl 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://hoverpatrol.net/when-your-scooter-wont-start/
https://www.youtube.com/watch?v=XAqhEmx8dFM
https://www.carlsalter.com/jonway-service-manuals.asp
https://www.scooterdomain.com/chinese-parts/by-brand/jonway/jonway-150cc-scooter-parts
https://absolutelyscooters.net/pdf/CGEN_dawg_scooter_manual.pdf

Jonway... | Answered on Oct 02, 2019

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