Trident 900 Camshaft Timing

Hi, i am doing the timing on my 95 trident and I have noticed that when the timing mark was at T1 the cam shaft sprockets timing arrows did not face towards each other, can the sprockets end up being bolted the wrong way round? They are using the correct bolt holes but could they be 180degrees wrong so the arrows faced out instead? I want to put the shaft on the correct way round when i rebuild so is there any way of Knowing how the cam shaft lobes should be sitting when all the marks are lined up properly? Sorry if that description is rubbish or hard to understand.

thanks

 

The bike has a chequered history and I’ve be rebuilding it after it has been sat for 10 years or so, partially rebuilt and then sat again. As there was no history I thought I’d do the cam spacings. I think I may have solved it, apparently the cam sprockets turn slower than the crank shaft so don’t always line up despite the T1 marking being lined up. So 1 more turn on the crank should sort it out. I guess as long as cylinder 1 is at top dead, I can reinstate with cams with the arrows lined up and it should be sorted. I was concerned that someone else had put the sprockets on the wrong way round.

 

I think the cams must go half the speed not twice the speed as the cam sprockets are much bigger than the crank shaft sprocket.