1986+ Mercury 6/8/9.9/10/15HP 2-stroke Factory Service Manual, Page 95Get this manual
CHARGING AND STARTING SYSTEM
5Route engine wiring harness and battery cablesleeve (under carburetor location) around to PORT side of cylinder block6Push wire retainer into opening of bottom cowl and secure with clip
aClip 7Secure harness and battery cablesleeve with cable-tie just inside bottom cowl8Reinstall carburetorRefer to Section 3A9Secure fuse holder in J-clip