6. ENGINE REMOVAL ATV 300/250 Gear Change Switch coupler Remove the A.C.Generator, pulser and gear change switch couplers. Pulser coupler A.C.Generator coupler Disconnect the spark plug cap. Spark Plug Cap Remove the three bolts and remove the Bolts outlet hose cover. Outlet Hose Cover Unscrew the clamp and then disconnect the Outlet Hose Inlet Hose outlet hose from the left crankcase cover. Unscrew the clamp and then disconnect the inlet hose from the left crankcase cover. Screw Screw 6-4