I’m changing the marked air tube on my Ftp 900 and want to change the o ring on the huma reg when it’s apart , if anyone knows the size that would be most helpful, also any hints and tips for setting up would help
Thanks
Sportsmatch GC2 numbers ,190, 252, 279.Steyr LP1 &LP5,EV2 mk4
Whiscombe JW 50 FB Number 0012 & JW 60 Number 031, ,CR-X,