Dont overtighting it though. Make sure it has some slack or it willcause towear prematurely for both chain and sprockets.
Good luck

 

I'd hate to see how loose your chain was before you tightened it

 

Hi mate,

That is too tight! Loosten that puppy. A too tight chain can cause all sorts of problems, especially if you hit a big bump and the rear suspension compresses.

Try to get it midway between the range setout in the manual. I think its about 2.5cm from memory. Sounds like you are closer to 1cm - 1.5cm