DAELIM ET-250 Service Manual page 108

Remove balance shaft from right crankcase.
Remove crankshaft from right crankcase.
Remove gasket and dowel pins.
Scrape gasket residues off the crankcase contact
surface.
Caution
Do not damage contact surface of the gasket.
It is better to moisten the gasket residue for easy
scrapping.
Drive out left crankcase oil seal.
Balance shaft