Step 4: Find the puncture, continued
- If some air remains in the tube or you did not find major damage to the tube, use that air. Otherwise, pump a little air back into the tube.
- With your ear close to the tube, run the circumference of the tube slowly through your hands. Listen for a light blowing sound coming from a small puncture hole, and feel for air blowing onto your face.
- If you hear and/or feel air, stop and look at the tube. Do you see a small hole, or a place on the tube that might be one? Spit some saliva onto your finger and put it on the possible hole on the tube -- you could also water. Watch for bubbles to find where on the tube is expelling air.
- If you don't find any holes in the tire, put a little water or saliva into the valve, and see if there is a leak through the valve. If your valve is leaking, you will need to replace the the valve core or the tube.
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