Is there a way to adjust the cam timing chain with the large bolt on the RH side of the cylinder?

hi there its fully automatic you can not adjust the tensioner , it may be possibal it is sticking but i do not know if xts are prone to this ,so may be get a manual and follow the removal and fitting of the tensioner ,sorry ive not had to remove mine but its normaly no big deal , when its out check all is well with the tensioner and not sticking zigzag