[scootercapecod]

UPDATE: Problem solved! It got warm enough to brave driving the scoot to the hardware store so I did. For those of you who have questions about size and thread here it is: 6mm, 1.00 pitch thread. I used the double up method as someone else suggested. You'll need either a 10mm nut driver or deep well socket to tighten them down. Now my scooter is nice and quiet.