just replaced head gasket on 85 85 hp force i need to know the ft lbs and the sequince .<br />also im having problems getting this motor to start all it does is backfire. it was in the shop for nine weeks and they gave up on it they could not even figure this motor out.<br />they say everything has check out ok sounds like its out of time but its not.its getting good fire on all cylinders.its getting fuel to all the carbs.any suggestion would help i am very new at this but iam somewhat mechicaly incline. they said compression was low on one of the cylinders but wasnt that bad for it not to at least start. i am stumped 