I met exactly the same problem with my 1947 rigid teles 4G. I found that if I fitted the big kink to the right and small to left, the right exhaust fouled the rear stand and left badly fouled the clutch cover. I, in the end fitted big kink left and small right. That way the left exhaust just touches the clutch dome, but silencers are nearly equidistant from the wheel. I could clear the dome with the left as is, but moving the right pipe out to match silencer to wheel distance, causes the kick start lever to start to foul! Happy days! I spent hours trying to sort this, so for now, I have settled for slight imperfection and made my own stainless clamps and brackets to fit anyway. I think I possibly have the wrong kick start lever (straight), but I have seen both types (straight and offset) fitted to my year model in articles. So until I get chance to compare one in the flesh....good luck, Malcolm.