Question about 2003 kawasaki KX 250
2003 kx250 i think the power valves are not opening. 1/2 to full throttle no power, has a deeper sound, then sometimes it works fine for a few minutes than back to the problem
I think your diagnosis is correct.
It sounds to me that the cenrifugal clutch is not working. This is the device that makes the power valve open and close.
It is situated behind the water pump, and is a non-service item.
It works in a similar way to the automatic clutch on a scooter
Enjoy your ride !
Posted on Mar 05, 2009
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.
Posted on Jan 02, 2017
Tips for a great answer:
Aug 26, 2015 | 2009 Triumph America
Nov 08, 2011 | 2001 KTM EXC 200
is a proper way to start the engine. Four controls are on your bike to assist
in starting. Below are generic instructions.
Don't kick, instead, push the kick lever downward. You will feel the back pressure as the piston is going upward on the compression stroke to the point the pressure is great enough that the kick lever "locks up". You are very close to TDC. NOW, pull in the de-compression lever. Push the kick lever a little bit more to get the piston past TDC. Now release the de-compression lever. Give the throttle a 1/4 turn then let it snap closed. A diaphragm, (Power valve), in the carb gives a shot of gas when this is done. DO NOT do this multiple times because you will flood the engine. Leave the throttle closed when kicking. A flooded engine will often backfire. Now give a strong kick through the full sweep of the kick start lever. Quickly get your foot off the kick lever at the end of the kick to avoid any chance of "kickback" from the kick lever. This happens in the case of a misfire, aka > backfire. It can be very painful, and can even break a leg. I am serious about that. Repeat the process (but without the throttle priming), for six kicks. After six kicks go ahead and twist the throttle again for a second priming. A good battery, a clean spark plug, a clean carb and clean air filter will also aid in starting. Note that not all carbs have a power valve. When a power valve is not present you should crack the throttle open only 1/8 inch from closed on each kick. Please rate my answer.
Aug 05, 2011 | kawasaki KX 250 F Motorcycles
Jan 13, 2010 | 2003 kawasaki KX 250
Jan 11, 2010 | 2004 kawasaki KDX 220 R
Oct 10, 2009 | 2003 kawasaki KX 250
Sep 23, 2009 | 2003 Suzuki RM 125
Aug 25, 2009 | 1988 Honda VT 800
Apr 24, 2009 | 2003 Suzuki VL 1500 Intruder LC
Jan 23, 2009 | 2003 kawasaki KX 250
407 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: