Question about kawasaki KX 500 Motorcycles

Open Question

My 86' Kawasaki KX 500 won't start.

I rebuilt an 86' Kawasaki KX 500 Motocrosser and after re-assembly I have a fairly weak spark. It does not start and backfires on about every 5th kick. The spark plug is wet. I have moved the stator to every position possible and the stator, coil, ground, and kill switch test ok.I'm not sure if there is a reliable way to test the black box. Compression is good, air box clear and the pipe is open.The engine has new seals. The carb. is clean. Any thoughts? David C.

Posted by on

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad
  • 3567 Answers

SOURCE: wont run...

Any water in the gas? Remove the water trap bowl at the bottom of the petcock, (gas valve). Any water or trash in the bowl? Drain a cup of gas from the tank. Any water or trash in the cup? Dump it, clean it and re-mount it, ( not all bikes have a water trap bowl ).

Get a fresh set of stock NGK spark plugs. Clean or replace the air filter. You seem to be pretty thorough in what you have done, but since plugs and filter weren't mentioned I had to ask.

Assuming you are getting air, gas and spark, and the timing is correct then it should run. Right? Not necessarily. Can the bike breathe? If pressure cant get out of the tailpipe the bike won't run. Mufflers can sometimes collapse internally. This restricts the flow of burned gasses. causing backpressure. If nothing goes out of the cylinder then nothing goes in.

Try removing the exhaust pipes. Now see if it will run. Get back to me because I would like to know what you find.

Posted on Mar 29, 2009

Ad
  • 6 Answers

SOURCE: honda cbr 600 wont start

hi, each lead has the specific number on it. if you do this correctly then they genrally give you an idea to where the sit in the coils( the way they bend :-) ) also i believe the coils are better off been attached to the frame once you are sure leads are in corect order and possitioned correctly in the coils.i just presumed the coils neaded earthing. make sure battery is pleny charged as a bad battery can just hinder. it is also very easy to flood the bike so just check the plugs again. if they are unusually wet then dry them off and try again . otherwise maybe try cleaning all electics.

hope this somehow helped
gavin barraclough

Posted on Apr 26, 2009

  • 1 Answer

SOURCE: can't keep running seems to flood out 1978/79 kawasaki

seems your fuel to air mixture is wrong

Posted on May 13, 2009

voodoomox
  • 1689 Answers

SOURCE: i have a kawasaki kx 250 2 stroke an it was

hi murray,

nice bike you have there.

have you checked on the carb ans see if the jet is right and the mixture is normal, this is usually the case if the carb is not tuned right.

better of reset the card, open it clean it, then set to default even if you are using your mixture of gas and 2t. just set to factory default. once it starts give it a few run, 1-2 hours, then set it to how you want your mixture to be.

hope this helps,

regards,

voodoo

Posted on May 17, 2009

Benimur
  • 6966 Answers

SOURCE: NO SPARK ON A 98 RM 125

Hi and welcome to FixYa,

Initially, test for the presence / absence of below described voltages using an analog / needle type voltmeter when starting the bike:

  • pulsating low AC voltage coming from the pickup coil;
  • pulsating voltage feeding the ignition coil.

Good luck and thank you for asking FixYa.

Posted on Dec 19, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Kawasaki KX65 will not start. Help?


Does it start with starting fluid? Have you checked the reed valves?

Aug 03, 2014 | Galfer Kawasaki kx65 kx 65 2002-2004 front...

1 Answer

2005 Kawasaki KX 125 stuck in 3rd gear.


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.
KX stuck in gear
2007 KX 125 won shift into gear
03 08 Kawasaki KX 125 250 Service Manual pdf
OEM Parts for Kawasaki
2005 Kawasaki KX125 Owner Manual

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

Nov 25, 2012 | 2005 kawasaki KX 125

1 Answer

2003 Kawasaki KX 250 won't go into neutral


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

Apr 22, 2012 | 2003 kawasaki KX 250

2 Answers

My 2005 kx 125 won't start there is no spark at


go bac and chec timing-mite hav confused top dead center with bottom--also is wiring tite and no flaws specialy at batt area,coil .....mite need to take some current test

Apr 13, 2012 | 2005 kawasaki KX 125

1 Answer

2006 Kawasaki KX 250 F will not start when hot


Hi, Briar613 and the usual suspects are:
1. Faulty ignition coil.
2. Faulty spark plug cables.
3. Faulty temperature sensor.
4. HISS light not going off.
5. Faulty starter motor.
6. Valves adjusted too tight.
7. Spark plug gap too wide.
8. Fuel has vapor lock.
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.
Bike starts runs shut off then won start again
KX250f Trouble Starting
http://www.mx-sport.ru/files/servicemanual-KX250f-06.pdf
OEM Parts for Kawasaki
2006 Kawasaki KX250F Owner Manual

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


Mar 28, 2011 | 2006 kawasaki KX 250 F

1 Answer

I have a 2004 kawasaki kx 125 the top end needs to be rebuilt it has been rebuilt one time already so what parts would i need to get is it hard to do or what


piston kit, wrist pin bearing, top end gasket kit and a honing tool to clean your cylinder is about it I would probably buy new air filter and spark plug if I was doing it, but not essential ?

Jan 18, 2011 | 2003 kawasaki KX 125

1 Answer

2003 Kawasaki KX 250 no spark


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


May 16, 2010 | 2003 kawasaki KX 250

1 Answer

I have an 86' KX 500 basket case with side-side play on crank.


To be honest if this was me I personally would replace bearings and seals and give whole engine good check over.May save some hassle later depending on your circumstances.

Jul 27, 2009 | 2002 kawasaki KX 500

1 Answer

2002 KX 500


you can try motosport.com

Nov 13, 2008 | 2002 kawasaki KX 500

Not finding what you are looking for?
Motorcycles Logo

Related Topics:

321 people viewed this question

Ask a Question

Usually answered in minutes!

Top kawasaki Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4988 Answers

yadayada
yadayada

Level 3 Expert

80417 Answers

bazzz7071
bazzz7071

Level 2 Expert

342 Answers

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

Answer questions

Manuals & User Guides

Loading...