2002 kawasaki klx 300 r

Source: kawasaki klx
Fist, Shut off the fuel at the fuel tap. Second, remove the drain screw, and drain any remaining fuel from the float bowl. Reinstall the drain screw. Third, remove the two 8mm mounting bolts from the rear of the carburetor body.
Step 4. Release the clamp, and remove the fuel line from the right side of the carburetor.
Step 5. Remove the spacer from between the carburetor and the intake pipe.

A light knock at the top of the engine, or ticking, is the valve gear. This is not a worry if it eases when the engine is hot.
A heavier knock down lower indicates trouble with the engine bearings, and this will usually get louder as the engine becomes hot.
These problems have arisen in Camrys due to engine oil sludging. This starves the bearings of oil and they wear quickly. Toyota says it affects engines up to a 2001 build, but I have heard of 2002 engines being affected as well. Toyota insists it is due to owner neglect, but they have taken it on in limited circumstances:

http://www.autosafety.org/toyota-broadens-sludge-repair-program

A light rattling sound when the engine is under load indicates you should try a fuel with higher octane rating, although this would be unusual in your model unless you are using a fuel with high ethanol.

I would suspect it is a wheel bearing issue, if it sounds similar to a baseball card in the spokes of a bicycle, stays somewhat same pitch just louder with speed that is where I would look. Does noise go away or change when making turns?

Kawasaki 10w40 motor oil. This is the oem recommended oil... Good luck and happy riding.
HDTV GURU JAY

4 stroke sae 30 advanced auto parts 8.00

could be the transfer gear or "bevel gears". does it **** in the drivetrain when it makes the noise? if so, check those gears!

ok buddy to stop the back firing on the carb will be a screw turn this in 1/4 of a turn and try this the mixture screw on pic below

Get someone to help--set the brakes and try to drive it. The other person needs to watch what is turning. If it turns into the differential, but nothing happens coming out on either side, then drain the oil out of, and open the cover on the differential. Look at the drive pinion gear (you can run this for a short time without lubrication), is it turning? That will turn the ring gear which turns the differential unit. If one axle turns, but the other side doesn't, look for a broken axle on the side that turns. If the input pinion gear doesn't turn, look for a broken pinion shaft. Hope this helps!

http://www.cyclepedia.com/kawasaki-klx110-online-service-guide/
toughest motorcycle on the planet Ok maybe a xr 50
did you Know that it actualy has a four speed gear box? all you have to do is chang the shift can and you will get fourth gear ....complete engine disassembly required Good Luck ride safe

hi idont believe that you have piston to valve problems as the valves would simply bend, this would then reduce your compression and your m/c would not run correctly .
wot you may be suffering from is just large valve clearance or worn camshaft and or valve gear,however this must be investigated further
hope this is of help ian