hi can anybody tell me what these pipes are for there is a large one and a small one that come from the middle of each pair and also a very small pipe that comes out the end of the set .

Picture's too big and blurry marra.....

Top one vents the slides, bottom one vents the float bowls.

Other two underneath are the fuel supply

HI SORRY ABOUT THE PICTURE SIZE I DONT KNOW HOW TO MAKE IT SMALLER !
WHEN YOU SAY VENTS TO SLIDES AND VENT FOR BOWLS WHERE CAN I PUT THEM WITH NO AIRBOX JUST A FILTER PLATE

original pic smaller
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Hi mate, the 2 ones between eachj pair of carbs can just be left open. the other one that is metal needs blanking off as its a vacuum. just place a bolt in the rubber pipe and put a cable tie round it.