1998 RM125 Power valve adjustment

Hi I have a 1998 rm 125 and I want to know how to adjust the powervalve I have done it but I thought that there were only 2 settings and it clicked. I have been to both maxes on the adjustment and it seems like its really fine adjustment with no clicks. However I want to make sure. Thanks.

If I remember right, the powervalve should be set at 1 turns tension.

Will it damage it if it isn't there though? Because where I have it right now it adds top end power.

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