Probably the best way is to take old hoses off and then install new hoses in their place?
One of the cylinder hoses is a molded elbow and you will need to purchase from Rotax part distributor ? Lockwood/LEAF. The remaining cylinder hoses are cut from straight length that can be purchased from local auto part store. I would buy high-grade silicone hose.
PPL/ASEL 1970 - Sport Pilot since 2007
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Bought Flying RV-12 #120058 Oct 2015 with 48TT - Hobbs now 568
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MJ Stricker (Father & CFI) - USAAF 1st Lt. Captain B-17H