X-valve leaking down the barrel

[gshartman59]

I have a problem with my SFL mag I can't figure out, any advice would be appreciated.

After gassing up the marker I can discharge once, and then air leaks down the barrel (the bolt does not fully return). If I turn off the air the bolt will return and I can discharge it only one time again. I've tried changing the spring, bolt, cleaning the on/off valve, but the issue remains, any suggestions?

[Ando]

Did you go from a gold spring to another gold spring? Try the red one or snip a gray one down to the size of a red spring.

Another problem could be the lvl 10. Try tuning it. Make sure you have the proper carrier installed.

If you don't mind telling, who did you buy the SFL from?

[athomas]

Definately sounds like a bolt stick issue. Try going to the next larger carrier size using the same white carrier oring. Remove all the shims when you do this, to prevent false leaks.

[gshartman59]

Thanks for the advice, I'll try both of these suggestions this weekend and post an update.

I bought the SFL more than a year ago from another person on this forum, don't remember his name, Jim maybe?