Installed the exhaust system. Painted additional small parts for the radiator/oil cooler installation. Modified the lower cylinder cooling hoses. After ordering a $20.00 hose nipple from Rotax ad indicated in the engine install video I discovered the newer engines already have the different nipples, Also discovered that the standard crankcase drain fittin (a banjo with a large nipple) does not work with the provided hoses. Had to order Rotax part # 956 651 fitting. This little fitting was almost $70.00.