My gl1200 fork tubes are running uneven. Left fork tubes appears to be collapsed more than right tube. I thought it might low oil so I drained and replaced oil. I also replaced seal on right fork since it was leaking. I didn't take caps off to refill, I used a vacuum pump to pulled new oil in through drain holes in the anti dive. On the left side oil went in fast and the right side oil would go back in until I turned anti dive setting to one. Does anyone know why fork tubes would be setting At different heights. Any help would be appreciated.