Mercury Force 9.9, 15HP Outboards Service Manual, Page 33Get this manual
EREASSEMBLING CARBURETOR AS REQUIRED
1Place welch plug into recess of carburetor body Carefully tap cente of we lch plug
NOTE: This will spread plug and hold it in place Seal top of plug with nail po lishInstall th rottle assembl Slide throHle shaft with throttle shaft return spring (A) into carburetor housing
NOTE: Position throttle spring as pictured urn throttle shaft clockwise unt il flat side of shaft faces outSecure throttle shutter (8) to throttle shaftDo not lighten screw