82xs400dude
XS400 Member
Hello I'm new here and I just got a free xs400j maxim. I'm not very used to carburetors or motorcycles. So for this bike I got it with no spark at all and it came with no carburetors at all. One of the previous owners decided to start a modern mini fuse box design and then they gave up. So I just used some inline fuses and still no spark. New coils. No spark. New plugs and caps and wires and still no spark. Turns out it was the ignition relay (I'm still slapping myself in the head for this) and now my next step is new carburetors. So I ordered 2 mikuni vm 34 carbs and I just wanted to know if anyone else has done this. I have seen some forms of people trying vm 34 carbs. But I dont know what setup was getting the best result. So please any advice would be much appreciated. Like jetting and needles and all of the fun stuff. I kinda fell in love with this old bike and I want to ride it down the road. I'm an apprentice mechanic and I'm 19 years old. So motorcycles are something I dont quite understand yet. And I understand carburetors even less. Cars and fuel injection is my natural habitat