I am on my gs 1000 l,have t mark at about 11 oclock in line with what appears to be timing mark at about 11 oclock on the engine casing.marks 1-4 are at straight up position.According to the book this is right.But,now exhaust cam,the one on the right,or exhaust pipe side,will not lay down flat in the valley if number 1 marks is slighly below parralel to the head surface.Tappets on number 2 and 4 are raised up so it cant rest down flat in the valley.This leaves about 1/4 inch of daylight under the other cam lobes.If I put the cam cap bearing covers down over the cam you cant tighten the bolts down against the cam with it not resting down in the valley right? What am i doing wrong.I have tried many many times and there just doesnt seem to be any way to get the number 1 mark on the exhaust cam down below the parrlale level of the head and get the cam down in the valley.If the number 1 is up some and parallel to the head the cam sits in the valley more but according to everything I am reading you cant do this.What in the heck am I doing wrong? The motor aint going anywhere like this.Thanks,hope to get an answer and soon.Ron B