It's got a leaky three way (I've already replaced all the o-rings and it's still there) but it also needs just a general tune up and re-timing tbh. The last time I played with it something had gone wrong with the cycling even though I never tough anything but the IVG.What's up with it dude? If I can trouble shoot from here then it saves you a few quid on postage but otherwise you can post it over and I'll take a look buddy.