Remove the timing chain slack guide, timing chain tension guide, and oil pump drive spacer. Press stopper tab (A) in the direction shown to push the timing Do not pull out ( ) the stopper pin until after installing the timing chain tensioner for balancer unit. Check matching mark position of balancer unit...May 28, 2013 · You can try removing the oil pump check valve ball & spring. Clean the ball bearing and the oil pump bore, then stretch the spring about 1/4″ longer. Use a drag link or a chisel to unscrew the cap of the taller tower on the oil pump to access. If the bike continues to sump often or excessively, you will likely need to replace your oil pump.