Lifan Motorcycles - Recent Questions, Troubleshooting & Support


Hi, Anonymous you may have squeaked your top end this is commonly known as "HEAT SEIZE" the piston heats up expands and becomes extremely tight in the cylinder bore and usually occurs mainly on 2 cycle engines right after a fresh top end rebuild, but it can also happen to brand new motorcycles, these are rare instances due to better quality control and education. Overheating failures that cause pistons to seize are many and each one should be carefully diagnosed to prevent future repeat offenders and the usual suspects are:
1. Lack of lubrication due to low or no oil.
2. Among the causes of lack of cylinder, lubrication is clogging of lubricator by dirt or waste, obstruction in oil pipes/lines, leaky check valves, leaky pump packing, broken oil pipe/line, oil too cold to feed.
3. Wrong type of oil used in premix or oil tank.
4. Improper premix ratio you should start with 32:1 as a baseline.
5. New rebuild piston to cylinder tolerances set up too tight.
6. Failure to follow proper break-in procedures with a 16:1 premix ratio.
7. Loose fasteners causing intake, base, or head gaskets to leak or blown crankshaft seal, failure caused by age, overheating or walking.
8. Holes in the intake manifold bent or warped intake flange or reed cage any stray air coming into a cylinder will cause a super lean condition.
9. Improper assembly of reed valve gaskets.
10. Insufficient warm-up time for temperature conditions before WOT.
11. Broken, pinched or cracked fuel line.
12. Carburetor fuel passages clogged or restricted from stale fuel varnish, ethanol sludge, dirt, rust, or fuel level in float bowl too low.
13. Main jet size too small or partially clogged
14. Air filter improperly installed, missing or not sealing.
15. Faulty or improperly adjusted oil pump and or cable.
16. Failure to bleed oil pump after a rebuild/replacement or running oil tank dry.
17. Engine coolant level too low, too old, or improper mixture ratio.
18. Radiator clogged, fins damaged, or faulty cap.
19. No liquid circulation due to failed oil or water pump.
20. Cavitation due to air in oil or coolant system.
21. Water and oil mix due to a blown head gasket.
22. Timing retarded due to faulty CKP sensor or CDI.
23. Improper spark plug heat range (too hot) and or gap.
24. Excessive engine load, brakes dragging, clutch slipping, transmission lubricant level too low or viscosity to high.
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.doityourself.com/stry/how-to-free-a-seized-motorcycle-engine
https://www.amazon.com/LIFAN-150CC-COOLED-ENGINE-LIFAN150SET/dp/B00D3RVRMM/?tag=leosm1-20
https://www.motorcycle-manual.com/lifan/
https://www.scooterdomain.com/chinese-parts/by-brand/lifan
https://www.manualslib.com/manual/982339/Lifan-125gy-5.html#product-150GY-5

Lifan... | Answered on Sep 28, 2019


Hi, Anonymous for this scenario you will need your service manual that has all fastener torque specs and a wiring diagram on the back pages, parts fiche, and owners manual if you can't find the best tool you ever bought for your Lifan, 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.
2008 Lifan LF400 Twin wiring diagram Google Search
Wiring Diagrams for Lifan 250cc Engine
PDF Moto Manual free LF400 service manual
Original Lifan Motorcycle Spare Parts and Accessories
http://resfacanno.tk/246.html free owners manual

2008 Lifan LF400... | Answered on Sep 19, 2019


Hi, Jackplested 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://www.youtube.com/watch?v=vIOzHJaMj3M
https://www.youtube.com/watch?v=r_WKW8UOaGQ
https://www.pdfmotomanual.com/manuales/lifan/eng
Original Lifan Motorcycle Spare Parts and Accessories
https://www.onlymanuals.com/manuals/lifan

Lifan... | Answered on Sep 09, 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.pdfmotomanual.com/manuales/lifan/eng
Original Lifan Motorcycle Spare Parts and Accessories
https://www.onlymanuals.com/manuals/lifan
http://www.pccmotor.com/lifan-125cc-eng125.html
Lifan Group Wikipedia

Lifan... | Answered on Sep 09, 2019


Hi, Colin 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.pdfmotomanual.com/manuales/lifan/eng
Original Lifan Motorcycle Spare Parts and Accessories
https://www.onlymanuals.com/manuals/lifan
Lifan Group Wikipedia
http://suprememotos.com/other_makes/62947-lifan-lf-50-qt-26a-aero-scooter.html

Lifan... | Answered on Sep 09, 2019


Hi, Nchap5254 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.pdfmotomanual.com/manuales/lifan/eng
Original Lifan Motorcycle Spare Parts and Accessories
https://www.onlymanuals.com/manuals/lifan
https://thumpertalk.com/forums/topic/610017-lifan-110cc-engine-specs
Lifan Group Wikipedia

Lifan... | Answered on Sep 09, 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 Lifan, 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+Lifan+125&tbm=isch&source=univ&sa=X&ved=2ahUKEwiLzvramcPkAhVKtlkKHcsLBX4QsAR6BAgGEAE&biw=1440&bih=757
https://www.youtube.com/watch?v=V4YGrzrw8TM
https://www.pdfmotomanual.com/manuales/lifan/eng
Original Lifan Motorcycle Spare Parts and Accessories
https://www.onlymanuals.com/manuals/lifan

Lifan... | Answered on Sep 09, 2019


Hi, Jay 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. Quick disconnect check ball stuck.
14. Compression below 75 PSI.
15. A stuck-bent-burnt valve.
16. Improper valve clearance (too tight)
17. 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.
18. 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.
19. Loose or corroded wire connection at the coil or plug between ignition sensor and ECM module.
20. Spark plug cables in bad condition and shorting check for spark leakage in the dark, cable connections are loose or connected to the wrong cylinders.
21. Ignition timing incorrect due to a faulty ignition coil, ignition module or MAP, CMP, CKP, O2, TPS, ETP, IAC sensors.
22. Faulty neutral, clutch, kickstand safety switch.
23. Faulty fuel pump or fuse or relay.
24. Faulty or corroded run/stop switch.
25. Tilt sensor needs a reset.
26. Security system not disarming alarm needs a reset.
27. 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.
https://www.bikechatforums.com/viewtopic.php?t=239660
What To Do If Your Motorcycle Doesn Start
https://www.pdfmotomanual.com/manuales/lifan/eng
Original Lifan Motorcycle Spare Parts and Accessories
https://www.onlymanuals.com/manuals/lifan

Lifan... | Answered on Sep 09, 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.
https://www.planetminis.com/threads/lifan-125-engine-starts-then-dies-wont-run-right-at-all.198265
https://thumpertalk.com/forums/topic/622308-lifan-motor-trouble
https://www.pdfmotomanual.com/manuales/lifan/eng
Original Lifan Motorcycle Spare Parts and Accessories
https://www.onlymanuals.com/manuals/lifan

Lifan... | Answered on Sep 09, 2019


Hi, Anonymous it should be noted that the "AIR FUEL" mixture screw adjustment "ONLY" manages your idle and has no effect on any other circuit also any intake leaks must be repaired before the A/F adjustment procedure can be performed otherwise you will never obtain a proper idle and you will waste a lot of time chasing the impossible. The A/F mixture screw's purpose is to fine-tune the fuel charge entering the combustion chamber. The following applies to both 2 and 4 stroke engines:
1. The mixture screw may be sealed at the factory with a Welch Plug please review the following video for removal.
https://www.youtube.com/watch?v=wAXcksgvDkM
2. The mixture screw manages a range of 3 complete 360-degree counterclockwise turns from the bottom/closed position.
3. The mixture screw should have a spring and o-ring for tension and sealing integrity.
4. Turn the mixture screw clockwise until it gently bottoms out, this makes the fuel charge very lean and the engine should not idle if it does then the pilot/idle jet is too big and needs to be replaced with the next size smaller.
5. Turn the mixture screw 1 and 1/2 turns counterclockwise to establish a baseline for starting the engine.
6. To fine-tune the idle circuit, adjust the mixture screw 1/4 turn in or out to achieve maximum idle RPM, wait 15 seconds between each adjustment for the idle to settle.
7. Never go past 3 full turns out this will make the fuel charge rich, foul plugs, and produce black smoke out of the exhaust, if the engine RPM keeps increasing past 3 turns the pilot/idle jet is too small and needs to be replaced with the next size larger.
8. After achieving maximum idle back out the mixture screw another 1/8 of a turn then adjust the throttle cable idle stop screw to 950-1050 RPM.
9. This procedure works great on 99% of all engines, for the 1% that demand a more robust throttle response on aftermarket monster fuel delivery systems additional tweaking outside the box may be necessary.
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.
Idle mixture adjustment air or fuel screw adjustment
https://www.youtube.com/watch?v=BPKgyo1mFcg
https://www.pdfmotomanual.com/manuales/lifan/eng
Original Lifan Motorcycle Spare Parts and Accessories
https://www.onlymanuals.com/manuals/lifan


2010 Lifan LF250... | Answered on Sep 09, 2019


Hi, Ianhalliwell 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 Lifan, 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=No+3rd+gear+Lifan+Trikes+Raider+Sportster&tbm=isch&source=univ&sa=X&ved=2ahUKEwjCtKTzlsPkAhWM2FkKHVZ1CPMQsAR6BAgDEAE&biw=1440&bih=757
http://woodsware.aciwebs.com/gears
https://www.pdfmotomanual.com/manuales/lifan/eng
Original Lifan Motorcycle Spare Parts and Accessories
https://www.onlymanuals.com/manuals/lifan

Lifan Trikes... | Answered on Sep 09, 2019


Hi, Denise_tinda 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 Lifan, 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://tboltusa.com/store/tech.php?pID=150/Pit+bike+Front+Manual+Clutch+Adjustment
https://www.youtube.com/watch?v=4a_HZSYz3hg
https://www.pdfmotomanual.com/manuales/lifan/eng
Original Lifan Motorcycle Spare Parts and Accessories
https://www.onlymanuals.com/manuals/lifan

Lifan... | Answered on Sep 09, 2019


Hi, Japiecillier 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 Lifan, 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=Cam+timing+2009+Lifan+Delta+250cc+V+Twin&tbm=isch&source=univ&sa=X&ved=2ahUKEwi4upWBksPkAhVKwVkKHY4DDkIQsAR6BAgIEAE&biw=1440&bih=757
HOW TO REBUILD Bike Engine 250cc
https://www.pdfmotomanual.com/manuales/lifan/eng
Original Lifan Motorcycle Spare Parts and Accessories http://www.fixya.com/answer/answerpageslideview.aspx?thid=9504059&ctg=391&brd=64036&fml=21120#
https://www.onlymanuals.com/manuals/lifan

2009 Lifan Delta... | Answered on Sep 09, 2019


Hi, Pagan06 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.pdfmotomanual.com/manuales/lifan/eng
Original Lifan Motorcycle Spare Parts and Accessories
https://www.onlymanuals.com/manuals/lifan
https://www.ultimatespecs.com/motorcycles-specs/um/lifan-lf125-9a-2012
Lifan Group Wikipedia

Lifan Matrix 125... | Answered on Sep 09, 2019


Hi, Kapajael and the usual suspects are:
1. Clutch controls improperly adjusted.
2. Oil level too high in primary chaincase.
3. Primary chain badly misaligned.
4. Clutch discs warped.
5. Insufficient clutch spring tension.
6. Slave cylinder needs bleeding.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the links below. Good luck and have a nice day.
How To Adjust Clutch Lever Free Play And Why Its Important MC Garage
https://www.youtube.com/watch?v=IYS1nAeWeoI
https://www.pdfmotomanual.com/manuales/lifan/eng
Original Lifan Motorcycle Spare Parts and Accessories
https://www.onlymanuals.com/manuals/lifan

2009 Lifan Smart... | Answered on Sep 09, 2019


Hi, Syn_uchiha 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.
https://www.youtube.com/watch?v=YRfjzF6bwXQ
https://www.google.com/search?q=Dies+suddenly+2009+Lifan+LF50QGy&tbm=isch&source=univ&sa=X&ved=2ahUKEwiQ-vyAi8PkAhWhzlkKHW-8AooQsAR6BAgFEAE&biw=1440&bih=757
https://www.pdfmotomanual.com/manuales/lifan/eng
Original Lifan Motorcycle Spare Parts and Accessories
https://www.onlymanuals.com/manuals/lifan

2009 Lifan... | Answered on Sep 09, 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.
https://www.planetminis.com/threads/lifan-125-engine-starts-then-dies-wont-run-right-at-all.198265
https://www.planetminis.com/threads/125-lifan-runs-then-bogs-out-when-heats-up-o-help.156691
https://www.pdfmotomanual.com/manuales/lifan/eng
Original Lifan Motorcycle Spare Parts and Accessories
https://www.onlymanuals.com/manuals/lifan

Lifan Knight 125... | Answered on Sep 09, 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.pdfmotomanual.com/manuales/lifan/eng
Original Lifan Motorcycle Spare Parts and Accessories
https://www.youtube.com/watch?v=LYfHrYTzbE0
https://bikez.com/motorcycles/lifan_lf50qgy_2009.php
Lifan Group Wikipedia

2009 Lifan... | Answered on Sep 09, 2019


Hi, Anonymous before testing any electrical component in the Starting Circuit 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. Ignition Switch not in the "ON" position.
2. Engine Run Switch in the "OFF" position.
3. Engine Run Switch is "FAULTY" or corroded.
4. Check the 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.
5. Bank angle sensor needs a reset or is faulty.
6. FOB battery low or dead.
7. Faulty ignition switch.
8. Faulty starter button.
9. Faulty kickstand, clutch, neutral safety switch.
10. Security alarm needs a reset.
11. Starter relay, solenoid, starter motor or circuit wiring faulty.
12. Starter armature or field coils have failed.
13. Main fuse or circuit breaker may be blown or faulty.
14. Faulty ignition relay.
15. The electric starter is working but starter clutch has failed.
16. 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.
https://www.chinariders.net/showthread.php?t=2263
https://www.youtube.com/watch?v=NB5F_Qu4ixE
https://www.pdfmotomanual.com/manuales/lifan/eng
Original Lifan Motorcycle Spare Parts and Accessories
https://www.manualslib.com/manual/1102495/Lifan-2006-250-V.html

Lifan... | Answered on Sep 09, 2019

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