Question about kawasaki KDX 125 Motorcycles

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Kawazaki kdx 125 wont start

When you kick the bike over there is a good spark air filter is clean and fuel is reaching spark plug but bike wont run just backfires after every 4th or 5 th kick

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MY 94 KMX 125 DOES THE SAME WONT KICK START JUST BACKFIRES AFTER 4 5 KICKS BUT STARTS WITHIN DROPING THE CLUCH AND PULLING BACK BIKE RIDES FINE WHEN STARTED EVEN WHEN THE BIKE IS WARM STILL WONT KICK START JUST BAD BACKFIRE

Posted on Jul 04, 2015

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KICK HARDER TRY PULL STARTING IT..IN SECOND GEAR..DOES IT HAVE ENOUGH COMPRESSION TO START?IT SHOULD START PULLING IT...START OFF WITH NO THROTTLE THAN IF NOT STARTING CRACK THE THROTTLE SO LIGHTLY AND SHE SHOULD FIRE OFF WHILE IN GEAR BEING PULLED OF COURSE BE CARE FUL NOT TO RUN INTO. WHO EVERS PULLING YOU..USE A LONG TOW ROPE..IF YOUR NOT A SEASONDED RIDER AND KNOW YOUR BIKE VERY WELL I WOULD NOT ATTEMPT THE PULL START...IF NOT CHECK YOUR COMPRESSION AND TIMING..MAJOR VACUUM LEAK MAYBE AT BASE GASKET..IS ENGINE SUCKING TO MUCH AIR? GOOD LUCK..

Posted on Feb 22, 2015

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Posted on Jan 02, 2017

Howard Mosley

  • 167 Answers

SOURCE: good compression, good spark, clean filter, new

2 things it could be...the coil!!....as these do have probs.they break down..make a spark but not enuf to fire the bike up...or could be the windings/genaratior/ ...i would look at coil 1st....as its cheaper to replace than windings!!...hope this helps...Howard

Posted on Jan 20, 2010

Anonymous

  • 1 Answer

SOURCE: cr 125, bike will not start after running out of

DEPENDS IF YOU HAVE SPARK OR NOT,IF NO SPARK IT COULD BE YOUR STATOR/ IGNITION, HAS TO HAVE SPARK TO FIRE THIS IS WHERE I WOULD START FIRST

Posted on Feb 13, 2010

nedkelly900

nedkelly900

  • 345 Answers

SOURCE: Bike wont kick start or idle , it will coast

first drain the carby, then set your air mixture screw 2 turns out, from the fully turned in position. The starting proceedure is as follows, when the engine is COLD, turn on fuel, pull on the choke fully, and kick the engine over. DO NOT use any throttle, when the engine is cold, and the choke is on. Remember Choke on, NO throttle.
When warm, no choke, and a little throttle when kicking.

Posted on May 13, 2010

yz-maniac

Danny

  • 127 Answers

SOURCE: 2003 kx 125 just had engine rebuilt but now it

sounds like you need to rejet the carb..

Posted on Sep 12, 2010

lizeth_verac

lizeth_verac

  • 5 Answers

SOURCE: kdx 125 has good spark but wont fire up

Knowing that there is no starter motor, I suspect that there is, in the presence of " good spark", a dearth of GASOLINE!

Posted on Nov 12, 2012

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1 Answer

I need help with my rm 125 1995 it has a perfect spark iv cleaned the carb and it don't start but wen I take the spark plug out then I kick it then screw the spark plug back in the kick it it nearly...


the way you explain this, the fuel and air mix is wrong, is the spark plug wet, if it is check the carb air mix screw. remove the mix screw and use a can of air and blow it out. before doing this remove the air filter and the spark plug then spray some wd (brand name) in hole and do again with the air can. then screw back in. leave the air filter off. and put spark plug back in and start the engine you will need to adjust the screw until you can get it to start. when it does give it a few good revs and keep it running for a bit. replace the filter and start engine and you will need to adjust the air screw till the engine sounds right again.

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So you've tested a spare spark plug sitting outside grounded to cylinder and you defintely have good spark?
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1 Answer

Any ideas on how to start a cold KDX 200 without kicking it 100+ times?


In order to better help you with the bike, more info is needed... does it have good compression? does it have a good spark plug? is it getting good spark? is the air fliter clean? is the carb clean? is fuel getting into the carb? is fuel getting into the cylinder? after kicking several times can you smell gas as if it were flooding? did you kick it over a few times and pull the plug out (QUICKLY) to see if its wet with fuel? does it look like there is any condensation on the plug after kicking it over several times? go thru all this info, and please let me know what you find and if this helps you.




















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Hi. My KDX 125 started cutting out like it was starving of fuel every 2mins or so*. i Took the carb' off, cleaned it, put it back on and now its not starting at all! not even any sign of ignition. The...


It may need rebuilt maby it does not have enough compression to turn over i would suggest getting a compression test done at a local bike shop. If thats the case it most likely needs rebuilt.

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1 Answer

Bike wont kick start or idle , it will coast


first drain the carby, then set your air mixture screw 2 turns out, from the fully turned in position. The starting proceedure is as follows, when the engine is COLD, turn on fuel, pull on the choke fully, and kick the engine over. DO NOT use any throttle, when the engine is cold, and the choke is on. Remember Choke on, NO throttle.
When warm, no choke, and a little throttle when kicking.

May 12, 2010 | 2003 kawasaki KX 125

2 Answers

MY BIKE CHOKE NEEDS TO BE KEPT ON WHILST RIDING IT WHAT COULD THAT BE?MY BIKE IS A KAWASAKI KDX 125


Air filter needs to be installed and clean. Check the seal at the carb,for tears or loose clamps.Also make sure fuel filter is cleaned out or replaced(dirt trash or water will stop fuel flow). If fuel pump is electric fuses may need replacement. If you still dont get better results you may need carbs cleaned.Not just add cleaner to gas,but removed and debris removed from jets float valve seat or filters inside.

Apr 07, 2010 | 2000 kawasaki KDX 125

2 Answers

Kdx 125 has good spark but wont fire up


Have you checked the engine earth from the starter motor?

Feb 22, 2010 | 2002 kawasaki KDX 125

1 Answer

Basicaly brand new cr25o mx bike wont start


Assuming you are using fresh gas. Check to see if gas is coming out of the line, if not blow back up into the tank and if that works there's dirt in the tank. Check the spark by removing the plug and kicking it over with the plug touching the engine, look for spark. If no spark, try a new plug, if still no spark, you have a stator problem. It wouldn't hurt to clean the air filter in any case. Good luck!

Jun 12, 2009 | 2005 Honda CR 125 R

1 Answer

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Yup, needle valve. Even a spec of sand can cause this. Take it apart and clean or replace it. Get a new overflow hose on it as well (helps keep dirt out of the carb and directs excess fuel away from the hot engine).

Apr 30, 2009 | 2002 kawasaki KDX 125

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