Roger that: about 4 years ago someone brought me a 550 that had been "cafe'd" by a local wrench who supposedly specialized in making cafe' bikes. He installed a fiberglass tank that was so narrow that there was no place for the coils, so he hung those out in front of the frame where the fender-less front tire could splash every puddle on them - and did. In 6 months the coils were misfiring, as the spark wires faced upward, so they collected and saved every drop...under it corroded away the spark wires.
The fuel tank had petcocks on both sides of it, but the tank sat wholly above the top frame, so it is one compartment. The builder told the owner "just use one side, the other side is reserve". Never mind they are at the same level -- so you already know what happened the first time the owner ran out of gas and switched to "reserve". He actually called me, because I had just tuned it up, and it died on his way home: he was sure I had done something wrong, so I took a gallon of gas with me and poured it into his 1.5 gallon tank when I got to his location, so he could ride to a gas station...
About a year later, he came by to have me "fix" it because it leaked a quart of oil on the garage floor every week. The paint was all flaking off, for lack of prep work on the tank and seat. The shifter shaft seal was laying loose under the side cover, so it leaked oil out whenever it was one the sidestand - but the 4-1 pipe forced removal of the centerstand, so there was no other option - and both tires, K70 square profile type, Chinko made, were cracking and dry rotting already. He sold it the next week.
I asked what he paid for it, because it obviously had lots & lots of miles on it and the engine needed a valve job, at the least. He said he got it "pretty cheap at just $2500", but could only sell it for $1500...