how do i loosen the timing belt to get it off the crank an timing gear

 

tensioner.
no helms or haynes?
its all in there just like sequence for removeing head bolts and installing.....

 

if you dont know how to loosen your timing belt i would not suggest you doing a head gasket, chances are you will mess something up

no offence just dont want to see a good GSR motor get wrecked

loosen the 14mm bold on the tensioner