Honda LEAD 110 2009 Service Manual page 288

Apply engine oil to each gear teeth and each bear-
ing sliding area of the shafts.
Install the final gear shaft into the left crankcase.
Install the countershaft into the counter gear while
aligning the countershaft splines with the counter
gear splines and install them to the left crankcase.
Apply sealant to the final reduction case mating sur-
face.
Install the dowel pins to the left crankcase.
FINAL REDUCTION
COUNTERSHAFT
COUNTER GEAR
FINAL GEAR
SHAFT
DOWEL PINS
12-15