Its peculiar alright!

There are 4 tiny allen/hex bolts inside the circular disc on the target side of the riser (so the outside of the limb bolt). Roughly positioned at 2,4, 8 and 10 O'clock, perpendicular to the limb bolt. Loosen those a little. That will then allow you to adjust the limb bolt on the other side (archers side of the riser). Turning that limb bolt will move the capure plate within the limb pocket moving the limb butt in or out.

This would work better with pictures I am sure!

You do get a lot of adjustment on the Sirius - big range.

For adjustment I prefer standard ILF but I like the range - I get approx 10 turns on that limb bolt from max out to max in.

Good luck.

Its a nice riser.

 

DylanH, Thank you. I'll give it a try when I get home this afternoon. It really is a nice riser. Not as heavy as I thought it would be. No vibration at all on the shot.

Zafar

 

Meant to add the obvious...tighten those 4 little suckers up again after you are done with the adjustment!

I think it is meant to "click" as you turn the limb bolt to signal adjustment - mine doesn't but it is old. Think the click has worn out if it was ever there to begin with. For me as I age I think I will develop clicks. And ticks. And groans.

 

Its the balance that is good.

You should find a medium weight in the stab will have it balanced perfectly neutral - or add a small light stab.

Towards the front of the lower half of the riser there is a gap that you will see pics whereby some have filled or screwed a plate for weight/balance. Its pretty close out of the box though. Much better balanced than Oly style tip back risers. And much better than the Spig 650 Club which is heavier but not as well balanced.

Did you obtain it new or used?

Depending on what riser you are used to you might notice it is stiffer - I think it puts a little more into the arrow.

 

Its the balance that is good.

You should find a medium weight in the stab will have it balanced perfectly neutral - or add a small light stab.

Towards the front of the lower half of the riser there is a gap that you will see pics whereby some have filled or screwed a plate for weight/balance. Its pretty close out of the box though. Much better balanced than Oly style tip back risers. And much better than the Spig 650 Club which is heavier but not as well balanced.

Did you obtain it new or used?

Depending on what riser you are used to you might notice it is stiffer - I think it puts a little more into the arrow.

It is a new riser. Got it through Xander @ iXPe Sports. Great guy to deal with. Greenhorn are painfully slow to respond but he kept at it. Took about 7-8 weeks to get it. I am trying to see if I can get the weight that comes with it too.

Spig screw in weights are too wide to be used in the lower stab hole. May have to get a custom weight made for it. Only shot about a dozen arrows yesterday but I really like the feel of it. Still needs a bit of tunning.

Thanks for all your help.

Zafar

 

Send it to me and I will adjust, I will send it back in around 12 months

 

Thanks for the offer Steve but I think I will keep it for now

 

There´s also a limb alignment system on the Sirius. If you look at the circular disc (just descrive above) you have three screws with flat heads (not the hex ones). The screw placed in the center of the riser locks the alignment system. Loosen that one and take it all out, and you will be able to rotate the limb t-bolt inside the pocket. The t-bolt is excentric and have a number of holes in it for the lock screw, and that adjusts the limb alignment. Adjust as you want, and then put the lock screw back in.

Tips: Mark the center position of the t-bolt with a permanent marker pen before starting to mess around with it. That makes it a lot easier to see what you are doing.