Top 20 2006 kawasaki KX 250 F - Page 3 Questions & Answers

This is normal for a fresh top end. Fingers with a bit of oil on them assembled the top end and a bit of the oil is on the engine and is burning off. It will stop pretty soon. Go for a ride!

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on the rear shock on the shock its self, the bottom is threaded you will need a spanner wrench to adjust this, but it will make your bike taller, also there is a rebound, and compression screws on the shock you can turn them to the right to adjust this, the front forks have these adjustments also but you will not need the spanner wrench for this.

Backfires are caused by mixture burning in the exhaust pipe. I would suggest that you check the seal between the exhaust valves and the head when the piston is on the compression stroke. You may have a burnt valve (I understand KXFs are prone to this problem!). Try talking to Teamgreen Kawasaki, they may be able to point you in the right direction. Good Luck!

Just call your local Kawasaki dealer, or any Kawasaki dealer, and give them the VIN number and they can look it up and tell you EXACTLY what the bike is. If you call a local dealer they may know the current owner and the bike's history.

Simple thing but easy to overlook. Could I get a 4 diamond rating for this solution? I am 3 short of 100 correct answers. Thanks!

Just remove the slide and move the clip on the jet needle down one notch. Try it and if more is needed do another notch. This will richen the low end air/fuel mix.

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If it's leaking from the carb,The float is sticking



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Water pump malfunctioning. Thermostat stuck losed or partially closed. Radiator plugged full of sediment.

The parts called selectors which engage the gears can wear out specially if been abused

issue with the thermostat maybe, not allowing engine to start.

If unfamiliar with 4 strokes, I suggest you let a dealer do the repairs. There is a whole world of things you can mess up on; cam mount torque, cam chain timing, sprocket positioning relative to cam lobe position, etc...

There is a proper way to start the engine. Four controls are on your bike to assist in starting. Below are generic instructions.

• The choke, used when the engine is cold. Pull the red knob for choke.
• The " Hot Start " Lever, used when the engine is hot. Pull the lever to lean the fuel mix when the engine has been running.
• The de-compression lever, always used.
• The throttle, used to prime the cylinder, (power valve).

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.

i would love to help but i need to know the type of bike you have and the year to get you that info..but the simple answer is the farther in the screw the leaner it gets the farther out the richer the mixture....lean is bad you want it a little rich i say bring the pin all the way in then 3 full turns or clicks out should do it. if it sounds like popcorn it is still to lean turn it out a little more let me know if this helps

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If the bike sat up for the winter, it's a real possibility the carb jets and fuel passages are gummed up. If this is the case, I recommend 1/4 to 1/2 can of SeaFoam added to your fuel. Lock down the front brake and rock the bike back and forth to mix the additive with the gas. Crank the bike and run at high idle for a few minutes, and since it is rideable, ride like you normally do and see if it gets more responsive after an hour or so.

The most common causes for this are a ceased piston (for instance, if there was an oil failure, the bike probably wouldn't have ceased until it was turned off) or if an internal bolt has gotten into the bottom end somewhere jamming the crank or kick mechanism itself.
Try removing the cylinders first, as that is the most likely cause of the failure.
If the piston is stuck in the cylinder, you may need to put a block of wood onto the piston and gently tap it out of the cylinder to effect repairs on the bike.
If the pistons come out of the cylinders without sticking, then having the cylinders removed will let you get a look into the crank area for loose bolts etc.
Don't forget to tie off the cam chain so it doesn't fall into the crank, because that's a pain to fish back out.
If you can't see anything wrong in the crank area, you will likely have to open up the bottom end to see what has gone wrong.
I wish I could be more help, but you didn't specify which bike you have.
If it's a 2 stroke, chances are the gas/oil mix was off or it ran out of 2 stroke oil and the piston ceased.

make sure the spark plug is good and if it is then the carburetor may need cleaned or adjusted

Hi,get a sheep skin cover and your *** will thank you for it.

What bike is this, make, year, and model please

Spray quick Start into the carbs and try start, if it fires there is a fuel problem and the carbs and fuel supply need to be checked. If it does not fire use a timing light and look to see if it flashes when you try start the bike. If it does not flash there is a problem with the ignition system. Have you tried a new spark plug?

blown rings, bad piston/cylinder tolerance, valve stuck open, spark plugs loose, hole in piston.
be more specific.