Got a question on wiring on a guitar

I am replacing pots on a friends old Lotus Strat. The pots were scratchy as hell and had all sorts of gunk and bad solder joints on the stock pots. So I got a Fender 250k for the tone, and just an All Parts 500k for the volume. I followed the wiring from the stock pots and the volume pot doesn't really work that well. At full volume it of course can be heard, but when I sweep it to no volume, it can still be heard, and from looking at a generic wiring schem, it looks to have been wired terribly wrong from the factory, or the last person to touch it, so I'll give a description of the wiring and see if anyone can tell me what wires to solder where so I can correct this piece of crap.

It's a 1 humbucker, 1 volume, 1 tone guitar. No coil tap or anything, and it's not a 4 conductor wire. There is a thick black wire coming from the pup cavity with a white wire, a black wire, then a bare metal wire, like you see grounded to the part holding the springs to the body on a Strat style guitar. Then there's another bare wire like that coming from the pup cavity with a bit of insulation on a little part of it.

Then there is a 2 part wire going from the volume pot to the tone pot. I also followed the wiring on the stock tone pot and put the small resistor packed with the new tone pot across the middle and left prong on the tone pot with the left pront bent towards the back of the pot and a solder connection made to connect the two.

This seems to be a horrible way to wire a guitar and the only diagram I've found for a 1 pup, 1 vol, 1 tone guitar is for a 4 conductor and it's kinda confusing me. I want to get this thing wired right the 2nd time so I don't have to tear it apart again. Any help would be greatly appreciated.

picture of the current wiring would help and here is a wiring diagram for what you want

Without looking at schematics, take your existing wiring & compare to one with a 4 conductor schematic. You'll see 2 wires soldered together & taped off on the 4 conductor schem. Your pup has that already done inside the pup. So just put that out of your mind. It doesn't apply to you. The bare metal wire is always ground. That leaves black & white. I'm guessing black is ground. But if that's wrong you have it down to + & -. If it sounds thin just switch the black & white. I'd also invest in 2 good 500K pots and a new cap.

Thanks guys, figured it out before the site came back up from maintenance. That is a good schem pjackson, I was trying to find pic schem on Duncan's site and only found videos. I remember them having good pic schems and that was one of them. Got it working, but had to completely redo the entire wiring system, don't know who touched it last time, or if it left the Lotus factory like that but it was completely horrible.

Good to see you fixed it. Great feeling aint it? I never tire of the aha! factor.

your welcome