Fixing Chain Tension

[Dave Dark]

Hi All!

Hopefully somebody might be able to help me with this. I'm a mechanical noob but want to learn so I've decided to do all routine maintenance myself. So far it has been quite easy. I've only had the bike for a couple of weeks though so we will have to see how things go.

I want to fix the tension in the chain because it is quite slack. I bought it new and have ridden it 550km and I've heard it is not uncommon for have a loose chain as it wears in.

Anyway, I have no problem loosening or pulling back the tire. I've read on this site how to do it and I feel very comfortable. My only concern is when I torque the rear axle nut. There is not enough space to fit my torque wrench because the exhaust is in the way.. Do I need a special attachment to get under there? Some sort of swiveling extension thing-a-ma-bob? Or should I take out the screw holding the muffler to the side of the bike, torque the axle nut and then replace the muffler?

Please let me know what you all advise. Hopefully, there will be some consensus as to the right plan of attack.

Thanks!