Yamaha F100B F100C Outboards Factory Service Manual, Page 93Get this manual
Power unit
Special service tools .5-1 Power unit5-3 Checking the valve clearance 5-6 Checking the compression pressure .5-9 Checking the oil pressure 5-9 Removing the power unit.5-10 Timing belt and sprockets.5-12 Removing the timing belt and sprockets 5-17 Checking the timing belt and sprockets.5-18 Installing the timing belt and sprockets5-18 Cylinder head .5-21 Removing the cylinder head 5-25 Checking the valve springs 5-26 Checking the valves 5-26 Checking the valve guides5-27 Replacing the valve guides 5-28 Checking the valve seat 5-28 Refacing the valve seat .5-29 Checking the camshaft 5-31 Checking the cylinder head 5-32 Installing the valves 5-33 Installing the cylinder head 5-34 Cylinder body .5-36 Removing and installing the oil filter 5-39 Disassembling the cylinder body 5-39 Checking the piston diameter 5-40 Checking the cylinder bore 5-40 Checking the piston clearance 5-41 Checking the piston rings 5-41 Checking the piston ring grooves 5-42 Checking the piston ring side clearance 5-42 Checking the crankshaft 5-42 Checking the crankshaft pin oil clearance 5-43 Selecting the connecting rod big end bearing .5-44 Checking the crankshaft main journal oil clearance 5-45 Selecting the crankshaft main journal bearing.5-47 Assembling the cylinder body 5-48 Installing the power unit.5-51