Can someone help me with an issue on my F1. What is the correct routing of the fuel line from the fuel tap to the rear carburettor?
Left or right side of the rear cylinder etc.

Mine both route down the right side (but not saying for sure thats RIGHT?) It takes a lot of hose to get to that back carb. I used vintage VW braided fuel hose.

Clay

Nice bikes !!!! I did a little less loopy on the back hose. The rear hose parallels the front carb hose routing and then makes more of a direct line from the front carb to the rear carb.

Clay

On my racebike I used a hard[aluminum] piece of tubing and routed it along the left side of the head up near the cam bearing cap. I used one of the cap bolts[with a spacer] to secure it with an adel clamp. The front of the tube has an "s'' bend to route the hose as far away from the vert. exhaust as I could. The rear of the tube bends around over the manifold and connects to the carb with a 4"ish piece of hose.