I need to know what was the valve clearance guage to be used on my yamaha xtz 125 motorcycle for its intake adjustment and exhaust

Should be the same as Honda 125

What is the valve clearance of a 125? The intake valve clearance should be 0.08mm (0.003 in) and the exhaust valve clearance should be 0.12mm (0.005 in). There should be a slight resistance as you slide the feeler gauge between the adjusting screw and the top of the valve stem. If there is no resistance the clearance is too large.

This actually says on Bajaj CT100 doesn't tell you and suggests 0.007mm.

https://www.team-bhp.com/forum/motorbikes/203868-diy-setting-tappet-clearance-motorcycle-bajaj-ct100b.html

https://www.google.com/search?q=bajaj+xcd+125+valve+clearance

They could put it here!

https://www.bajajauto.com/images/maintainance/XCD_125dtsi.pdf

Service Manual, says Free, but doesn't like my Ad Blocker!

https://www.google.com/search?q=bajaj+xcd+125+service+manual+pdf+free+download

..

Perfecto, .006 mm intake,.008 mm exhaust.
Check the attached links,
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Kawasaki Wind 125 Part 7 BR125

Manual Kawasaki Bajaj Wind 125

How to adjust motorcycle valve clearance

Valve noise adjustment cam chain Kawasaki Forums

hi, the largest valve clearance is always the exhaust valve due to the higher operating temperatures. So if the clearance is .004 and .006 thousands of an inch, the .004 relates to the intake valve.

Sometimes a dirty oil filter will cause lack of oil to the top end at startup.
As soon as the oil warms, it flows better and faster and hence the noise goes away after warm up.

If you need valves adjusted, the motor must be at TDC on compression stroke(both valves closed)
The motor must be cold do not try to adjust the valve clearance on a warm engine.

On TDC, pull the valve covers and check the clearance on the intake and exhaust valves by inserting a feeler gauge under the tappet.
INTAKE should be : .03-05mm
EXHAUST should be .05-.08 mm

Im sure you don't need a valve adjustment. but if you do: Put Engine on TDC
Loosen the locknut with a 9 or 10 mm wrench, stick the feeler gauge under the tappet, and tighten the little square tipped valve adjuster screw clockwise until you feel friction on the feeler guage.
Enough friction that the feeler gauge feels tight but you can still slide it back and forth.
Not carefully tighten the locknut. Check the feeler guage during tightening to make sure it didn't get too tight or too loose. Once you set the clearance, move to the next valve, and repeat the process using the other feeler guage.
Once both are done put the covers back on and your done,

NOTE: You may have to remove seat, gas tank, airbox, and side covers to get to the covers.

Intake valve
0.05 - 0.09 mm
Exhaust valve
0.11 - 0.15 mm

valve lash on the intake .003 to .005 inch, .08 to .12 mm,exhaust .004"to.0055 inch,.10 to .14 mm (cold engine).

hello
with the cylinder set at top dead center compression. using a feeler gauge between the tappets and the valves there should be .002-.003in clearance on the intake valves, and .006-.007in. clearance on the exhaust valves. thank you.

Hi Anne

The cold valve lash for your bike are intake 0.08-0.12mm and exhaust 0.10-0.14mm. You can get this and more specifications for your machine for free here.

regards
robotek