Dragun Drallion timing air leaks + instructions

[jesterbits]

Right where shall I start...?

Just brought a Dragun Drallion well impressed with looks cost around $200.

Took the gun out on the field and found the gun kept getting stuck in the cocked position (when it did cock) and when the trigger was pulled and held (in semi auto) an air leak from the lower electronic section of the front block.

I understand that this is to do with timing but what is the easiest way of timing these markers, and what is that air leak all about?

I'm also trying to find an instruction manual any ideas?

[wolf'sRevenge]

http://www.accesswave.ca/~devon/timingmx/TIMINGMXv11.html

timing

[jesterbits]

This did help set up the basics but the marker is still staying occasionally cocked also whilst jammed in the cocked position when the trigger is pulled fully, the electronic 3-way is leaking air, and it is still chopping balls, any ideas?