Important Lubrication Passages
It is also important to maintain the oil passages in the engine. Damaged oil seals must be replaced, and oil journals must be kept clean and unobstructed.
A vital oil passage connects from the bottom of the right crankcase to the right crankcase cover. When removing the right crankcase cover, it is important to verify this oil passage is free from obstructions. After entering the right crankcase cover, this oil passage connects to the end of the crankshaft, lubricating both the crankshaft and the connecting rod. It is important to inspect the oil seal in the right crankcase cover which forms the seal with the end of the crankshaft. If this seal is damaged it must be replaced, since it maintains oil pressure for this important lubrication passage.
When servicing the clutch, verify the oil holes in the push rod cap are unobstructed. These holes lubricate the clutch discs.
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Spud
"Never argue with an idiot. He will drag you down to his level, and beat you with experience."
Mark Twain
2015 Zongshen ZS250GY-3 (RX3)
2006 Zongshen ZS200GY-2 (Sierra 200)
2005 Honda XR650L
2004 Honda CRF250X
1998 Kawasaki KDX220
Mods made to my Zongshen ZS200GY-2:
http://www.chinariders.net/showthread.php?t=6894