6. ENGINE REMOVAL MXU 250R/300R Bolts Connectors ENGINE REMOVAL (MXU 300R) Drain engine oil and transmission oil. (Refer to chapter 3). Remove frame covers and exhaust pipe. (Refer chapter 2). Remove the air cleaner housing and carburetor. (Refer to chapter 5). Disconnect the spark plug from the cylinder head. Disconnect the spark coil connectors from the spark coil, then remove the two bolts and spark coil. Spark Plug Spark Coil Speedometer Cable Disconnect the speedometer cable. Crankcase Breather Hose Disconnect the crankcase breather hose from the cylinder head cover. Disconnect the vacuum hose from the inlet pipe. Vacuum Hose 6-8