Ralph Q
New member
Maybe I put the carb on wrong. It was running better before I attempted to do the stuff myself. If I bring it to a shop what kind of bill am I looking at? I reslly want o get this thing running so I can start making some money so I can buy a real machine. Hey Russ what's the biggest pump I can put on a gx390? I already have a 5 gpm direct drive on one engine. Is there a 2500 psi 5.5 or 6 gpm gear drive available(and can you get the gearbox too) . I don't need any more pressure than 2500 around here.