20 Most Recent 2003 kawasaki KX 250 Questions & Answers


Hi, Anonymous and the usual suspects are:
1. Retarded ignition timing.
2. Retarded cam timing.
3. Bent or burnt exhaust valve.
4. Massive air leak.
5. Intake manifold cracked or damaged.
6. Intake manifold seals have failed.
7. Wrong heat range spark plug.
8. Fuel delivery system running too lean.
9. Faulty Map, O2, MAF, TPS, sensors.
10. Faulty advance mechanism.
11. Faulty VOES switch.
12. Aftermarket exhaust headers tubing too thin.
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://motocrosshideout.com/2012/06/17/is-a-glowing-red-head-pipe-okay
KX250F Header pipe RED HOT
OEM Parts for Kawasaki
2003 Kawasaki KX250 Owner Manual

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2003 kawasaki KX... | Answered on May 28, 2018


Hi, Lynn_boal after careful deliberation 4 out 5 Kawasaki Gods give this one a thumbs up, but just to be on the safe side you should give your local dealer's parts/service department a call to confirm.
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.howtomotorcyclerepair.com/images/Kawasaki-KX-125-KX250-Service-Manual-2003-2004-2005-2006-2007-2008.pdf
https://www.partsfish.com/page/oem-parts-for-suzuki
2003 Kawasaki KX250 Owner Manual
Kawasaki KX 250 2003 Motorcycle Photos and Specs
https://en.wikipedia.org/wiki/Kawasaki_KX250

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

2003 kawasaki KX... | Answered on Mar 04, 2018


Hi, Tmgray16 after careful deliberation 4 out 5 Kawasaki Gods give this one a thumbs up, but just to be on the safe side you should give your local dealer's parts/service department a call to confirm.
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.howtomotorcyclerepair.com/images/Kawasaki-KX-125-KX250-Service-Manual-2003-2004-2005-2006-2007-2008.pdf
OEM Parts for Kawasaki
2003 Kawasaki KX250 Owner Manual
Kawasaki KX 250 2003 Motorcycle Photos and Specs
https://en.wikipedia.org/wiki/Kawasaki_KX250

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

2003 kawasaki KX... | Answered on Mar 04, 2018


Hi, Scott_alliso 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. 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.
17. 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.
18. Loose or corroded wire connection at the coil or plug between ignition sensor and ECM module.
19. 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.
20. Ignition timing incorrect due to a faulty ignition coil, ignition module or MAP, CMP, CKP, O2, TPS, ETP, IAC sensors.
21. Faulty neutral, clutch, kickstand safety switch.
22. Faulty fuel pump or fuse or relay.
23. Faulty or corroded run/stop switch.
24. Tilt sensor needs a reset.
25. Security system not disarming alarm needs a reset.
26. 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.
kx 250 will not start
help kx250 wont start
https://www.howtomotorcyclerepair.com/images/Kawasaki-KX125-KX250-Service-Manual-Repair-1999-2000-2001-2002-99924-1244-04.pdf
OEM Parts for Kawasaki
2002 Kawasaki KX250 Owner Manual

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

2003 kawasaki KX... | Answered on Mar 04, 2018


Hi, Anonymous 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. 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.
2003 KX250 with no spark
Madass No Spark Test Part 1 wmv
https://www.howtomotorcyclerepair.com/images/Kawasaki-KX-125-KX250-Service-Manual-2003-2004-2005-2006-2007-2008.pdf
OEM Parts for Kawasaki
2003 Kawasaki KX250 Owner Manual

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


2003 kawasaki KX... | Answered on Mar 04, 2018


Hi, Chrisncourtn 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 Kawasaki, 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://thumpertalk.com/forums/topic/787559-2002-kx250-gear-oil
How to change gear oil in 2 stroke dirtbike KX 250
https://www.howtomotorcyclerepair.com/images/Kawasaki-KX125-KX250-Service-Manual-Repair-1999-2000-2001-2002-99924-1244-04.pdf
OEM Parts for Kawasaki
2001 Kawasaki KX250 Owner Manual

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


2003 kawasaki KX... | Answered on Mar 04, 2018


Hi, Foxracing_38 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 Kawasaki, 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.
2001 Kawasaki KX 250 engine diagram Google Search
2001 Kawasaki KX250 KX250 L3 OEM Parts
https://www.howtomotorcyclerepair.com/images/Kawasaki-KX125-KX250-Service-Manual-Repair-1999-2000-2001-2002-99924-1244-04.pdf
OEM Parts for Kawasaki
2001 Kawasaki KX250 Owner Manual

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

2003 kawasaki KX... | Answered on Mar 04, 2018


Hi, Samwilliams ask 10 different riders and you will get 10 different answers. All oil is certified by the Oil Gods to perform under specific conditions for specific applications and any oil is better than no oil and if you're in a bind diesel oil works just fine. If your engine is air cooled never run automotive oil because normal motorcycle cylinder head temperatures run much hotter than water-cooled cylinder heads, make sure the oil is designed for motorcycles. Your owners manual recommends a specific type of oil that is designed to lubricate the engine parts to withstand the normal driving conditions the motorcycle was intended to be used for, end of story. Now for an analogy, your cars owners manual recommends using 87 octane fuel to power your engine for maximum performance and it does a wonderful job of achieving that goal. But you say 92 octane is better because it has a higher number and is more expensive, well guess what your car will not run any better and there are no long or short term benefits from running a higher octane fuel bottom line your car doesn't need it. Same thing with oil sure they make lubricants that can withstand the temperature of molten lava which you would need if you were planning to drive into an active volcano, don't waste your time and money on snake oil just use what your bike needs and your manufacturer recommends and nothing more. The oil weight grade is for ambient temperatures you expect to drive in between oil changes 20w50 covers 80% of all driving temperature conditions if your looking for a better oil that works in all temperature conditions, buy a Synthetic in the same grade from a reputable oil manufacturer I personally recommend AMSOIL just because they were the pioneers in synthetics and their load test numbers for wear put them in a class all by themselves and you can go longer and further in between oil changes. It's a little hard to find in stores but easily available online otherwise Mobil 1 is my second choice.
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.
What type of oil for gear case on KX 250
https://thumpertalk.com/forums/topic/612222-kx250-oil
https://www.howtomotorcyclerepair.com/images/Kawasaki-KX-125-KX250-Service-Manual-2003-2004-2005-2006-2007-2008.pdf
OEM Parts for Kawasaki
2003 Kawasaki KX250 Owner Manual

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

2003 kawasaki KX... | Answered on Mar 04, 2018


Hi, Wallara1 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 Kawasaki, 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.
kx250 clutch cable adjustment
Kawasaki Kx250 Part 5 New clutch cable with problems
https://www.howtomotorcyclerepair.com/images/Kawasaki-KX125-KX250-Service-Manual-Repair-1999-2000-2001-2002-99924-1244-04.pdf
OEM Parts for Kawasaki
2002 Kawasaki KX250 Owner Manual

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


2003 kawasaki KX... | Answered on Mar 04, 2018


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 Kawasaki, 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.
1st time top end rebuild tips KX250
1997 Kx250 Top End Rebuild Info
https://www.howtomotorcyclerepair.com/images/Kawasaki-KX-125-KX250-Service-Manual-2003-2004-2005-2006-2007-2008.pdf
OEM Parts for Kawasaki
2003 Kawasaki KX250 Owner Manual

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


2003 kawasaki KX... | Answered on Mar 04, 2018


Hi, Anonymous and the usual suspects are:
1. Improper clutch adjustment or not disengaging.
2. Bent shift shaft.
3. Shift fork bent or seized.
4. Gear seized on the shaft.
5. Gear positioning lever binding.
6. Shift return springs weak or broken.
7. Shift return spring pin loose
8. Shift mechanism arm spring is broken.
9. Shift mechanism arm is broken.
10. Shift drum is broken.
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.
Won go into neutral
03 kx 85 wont go into neutral
https://www.howtomotorcyclerepair.com/images/Kawasaki-KX-125-KX250-Service-Manual-2003-2004-2005-2006-2007-2008.pdf
OEM Parts for Kawasaki
2003 Kawasaki KX250 Owner Manual

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

2003 kawasaki KX... | Answered on Mar 04, 2018


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 Kawasaki, 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.
02 Kx 250 Head Bolt torque
Torque of cylinder and cylinder head
https://www.howtomotorcyclerepair.com/images/Kawasaki-KX-125-KX250-Service-Manual-2003-2004-2005-2006-2007-2008.pdf
OEM Parts for Kawasaki
2003 Kawasaki KX250 Owner Manual

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

2003 kawasaki KX... | Answered on Mar 04, 2018


Hi, Mkenne7 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 Kawasaki, 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://thumpertalk.com/forums/topic/787559-2002-kx250-gear-oil How to change gear oil in 2 stroke dirtbike KX 250
https://www.howtomotorcyclerepair.com/images/Kawasaki-KX125-KX250-Service-Manual-Repair-1999-2000-2001-2002-99924-1244-04.pdf
OEM Parts for Kawasaki
2001 Kawasaki KX250 Owner Manual

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


2003 kawasaki KX... | Answered on Mar 04, 2018


Hi, Nicholaswink and the usual suspects are:
1. The first thing to do if your spark plug has been fouled is to check the air filter. If it's really dirty, that makes it difficult for air to get through to the engine, causing a rich condition. Either clean it thoroughly with some Air Filter Cleaner or buy a new filter. Before you put it back in the air-box, treat with some air filter oil or spray. "WARNING" adding too much oil can also clog up the filter, resulting in another fouled plug.
2. While the gas/oil ratio doesn't equate to what the jetting is, you can still foul plugs, or worse, if the mixture is wrong. Depending on your bike, it's best to look at your owner's manual for the correct ratio. For most 2-stroke motocross bikes, a ratio is 32:1 or 40:1, the gas being 32 or 40, and oil being 1. For those that don't it, it means that for every 128 ounces (one gallon) of gas, you add 4 ounces of 2-stroke oil for a 32:1 ration, or just over 3 ounces for a 40:1 ratio.
If you have too much oil in the mixture (such as 12:1), then you will probably end up fouling the plug because it is more difficult to burn that much oil. Don't try to cut corners with the oil though, because it's very important for your dirt bike's engine. 2-stokes need the oil for lubrication on the cylinder walls, so if you don't have enough (or any for that matter) then the cylinder walls will run dry, causing it to overheat and seize the engine very quickly. So it's very important that you put in the right mixture pre-mix to your 2-stroke gas tank.
Also, 2-strokes have reeds that air and fuel go through into the cylinder, so if they are cracked or broken the bike will not run right. This could cause the plug to foul, so before you go out and buy anything expensive, make sure the reeds are still good.
3. While this usually isn't the main problem, it could be that your spark plug isn't burning hot enough. Having a hotter spark will ignite the fuel stronger, leaving less residual gas/oil in the cylinder that could cause the plug to foul. This "ISN'T" the best choice, but I'd say it's safe to go one plug hotter than stock. Keep an eye on the plug color you're looking for a light tan color anything whiter and you could burn a hole in your piston. Spark plug manufacturers aren't always the same, so make sure you find out how they rate them.
4. Almost every motocross bike comes rich from the factory (especially Honda 2-Strokes when they were being made). It's usually a pretty simple fix, but many riders are too lazy and would rather continue buying plugs instead of spending a few bucks on jets.
5. Piston rings badly worn or broken.
6. Faulty ignition coil low output.
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.
KX 250 Fouling plugs PLEASE HELP
2003 KX250 killing plugs not fouling
https://www.howtomotorcyclerepair.com/images/Kawasaki-KX-125-KX250-Service-Manual-2003-2004-2005-2006-2007-2008.pdf
OEM Parts for Kawasaki
2003 Kawasaki KX250 Owner Manual

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

2003 kawasaki KX... | Answered on Mar 04, 2018


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 Kawasaki, 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.
Oil from behind front sprocket 86 KX250
How To Dirt Bike Counter Shaft Seal Replacement
https://www.howtomotorcyclerepair.com/images/Kawasaki-KX-125-KX250-Service-Manual-2003-2004-2005-2006-2007-2008.pdf
OEM Parts for Kawasaki
2003 Kawasaki KX250 Owner Manual

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


2003 kawasaki KX... | Answered on Mar 04, 2018


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 Kawasaki, 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.
2001 Kawasaki KX 250 wiring diagram Google Search
Kawasaki Motorcycle Wiring Diagrams
https://www.howtomotorcyclerepair.com/images/Kawasaki-KX125-KX250-Service-Manual-Repair-1999-2000-2001-2002-99924-1244-04.pdf
OEM Parts for Kawasaki
2001 Kawasaki KX250 Owner Manual

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

2003 kawasaki KX... | Answered on Mar 03, 2018


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 Kawasaki, 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.
2003 Kawasaki KX 250 clutch release came apart Google Search
Kawasaki kx250 clutch rebuild
https://www.howtomotorcyclerepair.com/images/Kawasaki-KX-125-KX250-Service-Manual-2003-2004-2005-2006-2007-2008.pdf
OEM Parts for Kawasaki
2003 Kawasaki KX250 Owner Manual

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


2003 kawasaki KX... | Answered on Mar 03, 2018


Hi, Anonymous and the usual suspects are:
1. Clutch cable bent, kinked, pinched, rusted or needs lubrication.
2. Hydraulic clutch hose collapsed or pinched.
3. Improper clutch adjustment.
4. Clutch plates rusted.
5. Pressure plate or springs to heavy for service.
6. Damaged clutch shell.
7. Damaged, bent, or stuck push rod assembly.
8. Faulty worm gear mechanism.
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.
very hard clutch pull on 99 kx125
hard clutch pull on 99 kx 250
https://www.howtomotorcyclerepair.com/images/Kawasaki-KX-125-KX250-Service-Manual-2003-2004-2005-2006-2007-2008.pdf
OEM Parts for Kawasaki
2003 Kawasaki KX250 Owner Manual

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

2003 kawasaki KX... | Answered on Mar 02, 2018


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 Kawasaki, 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.
03 KX250 Minimum Octane
What Octane level for my gas is best Kawasaki Forums
https://www.howtomotorcyclerepair.com/images/Kawasaki-KX-125-KX250-Service-Manual-2003-2004-2005-2006-2007-2008.pdf
OEM Parts for Kawasaki
2003 Kawasaki KX250 Owner Manual

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

2003 kawasaki KX... | Answered on Mar 02, 2018


Check the ignition timing.

2003 kawasaki KX... | Answered on Feb 10, 2018

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