Question about 2004 kawasaki KLX 125

1 Answer

I have a 2008 Kawasaki klx 125 I just bought used which takes 20-30 kicks with the choke on to start and if it is cold outside even more. Then the choke has to stay on for a minute until the motor gets warm or it won't run right. But after the motor warms up its fine, its just getting it started. Any suggestions on what could be wrong? Thanks

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 194 Answers

Well - usually something like this would make me suspect the compression and timing first then the jetting in the carb. You might want to do a quick compression check although I do not know what the pressure should be for your bike. I would suspect at least 165PSI. You could have bought a bike that was run without an air filter or something like that.

I would also check the simple stuff - clean the air filter, drain the float bowl and tank and replace with fresh fuel (especially if your fuel is diluted with Ethenol !) and maybe even replace the spark plug.

If all this checks out OK and you still have the same thing going on, you might need to alter the low speed jetting (pilot jet).


Posted on Mar 25, 2011


1 Suggested Answer

  • 2 Answers

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

A 6ya expert can help you resolve that 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.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

2003 Kawasaki KLX 125 idle adjustment

Hi, Vernon for this scenario you will need your service/owners manual if you can't find the best tool you ever bought for your Kawasaki, despair not, for a mere $10 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
Setting idle and fuel screw Kawasaki Forums
Dirtbike How To Ajust Your Idle Screw
Kawasaki KLX125 2003 2006 Factory Service Repair Manual PDF Download... $10
OEM Parts for Kawasaki
Kawasaki KLX125 Owner Manual

May 27, 2017 | 2003 kawasaki KLX 125

1 Answer

2006 Kawasaki KLX 125 Baja Kit wiring diagram

Hi, Anonymous 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.
2006 Kawasaki KLX 125 Baja Kit wiring diagram Google Search
Kawasaki Motorcycle Wiring Diagrams
Kawasaki KLX125 2003 2006 Workshop Repair Service Manual PDF Download... $15
OEM Parts for Kawasaki
Kawasaki KLX125 Owner Manual

May 08, 2015 | 2006 kawasaki KLX 125

1 Answer

Bought 2004 Kawasaki klx 125 and takes 20-30 kicks to start with choke on and even more when cold. Won't run right until motor warms up n takes a while for it to warm up. Runs fine after it does but it's...

Be certain the battery is in good condition. Install a new spark plug. Clean the carb and air filter. Use the throttle sparingly. The carb has a power valve that gives an extra shot of gas each time the throttle is twisted. Too many twists and the engine floods out. Please rate my answer. Thanks!

Mar 25, 2011 | 2004 kawasaki KLX 125

1 Answer

What is the choke position on 2004 klx 125, up or down

Down is choke "ON" and up is choke "OFF". Had same question and found on another site. Made carb adjusrment much easier after cleaning. Bike was new to me and runs great now.

Jun 05, 2010 | 2004 kawasaki KLX 125 L

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

1 Answer

2004 klx 125l bike ideling

How long has the bike been sitting? The gas may be bad or the carb might need to be cleaned out or choke may be sticking.

Feb 06, 2010 | 2004 kawasaki KLX 125

3 Answers

Hard to start kawaski barako 175

Hi and welcome to FixYa,

A known common issue with the Barako with either the kick or electric version specially when cold, in the early hours of the morning or if have not been used for some time. A couple of initial ideas to try:
  • leave the petc0ck open (even overnight);
  • before starting, twist the throttle a couple of times;
  • use the choke;
  • you may be interested to explore the possibility of modding the carb with one from an Eliminator.

In most instances, tyagaan lang yan but of course is a pain pag nagmamadali.

Good luck and thank you for asking FixYa.

Nov 24, 2009 | 2005 kawasaki KLX 125

1 Answer

I have a 2005 klx 125 it starts and runs fine THEN BOGS OUT AT

when riding try pulling choke u p and see what happens

Jun 04, 2009 | 2003 kawasaki KLX 125

1 Answer

2004 Klx 125 only runs with choke on. Barely starts

Mixture is off on the Carb, try backing the mixture screw out a quarter turn. Better/ Worse?

Apr 14, 2009 | 2004 kawasaki KLX 125 L

Not finding what you are looking for?
2004 kawasaki KLX 125 Logo

218 people viewed this question

Ask a Question

Usually answered in minutes!

Top kawasaki Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4727 Answers


Level 3 Expert

78257 Answers


Level 2 Expert

342 Answers

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

Answer questions

Manuals & User Guides