Eton VECTOR ST 250 Service Manual page 96

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
96