Whilst working on my 99 YZ400 I noticed the relay arm bolt (bottom rear shock bolt) was sticking out about 10mm. I raised the rear wheel off the ground to replace the bolt and nut. I did not realise that no nut was required I assumed it was sheared off. The bolt is meant to go through the shock and screw into the other side of the relay arm, therefore no nut is required. Once I tightened the bolt and nut I lowered the rear wheel onto the ground. I sat on the bike and swingarm fouled against the nut. I realised I made a mistake by putting the nut on there and when i got off bike (HERE IS THE PROBLEM) the rear shock raised very slowly. (first time it's ever done this) . Q1. Have I damaged the shock or nitrogen cylinder by sitting on the bike. . Q2. Am I able to fill or re-pressurize the nitrogen cylinder. . Help required as I'm meant to go riding on Saturday.