Idle Adjustment Knob Screw & Retainer Clip for OMC Johnson 74-85 - 387272 321996

Idle Adjustment Knob Screw & Retainer Clip for OMC Johnson

This idle adjustment knob screw and retainer clip replaces OEM parts 387272 and 321996 for OMC Johnson outboard motors built from 1974 to 1985, allowing precise idle speed adjustment.

Overview

The idle adjustment knob screw and retainer clip is a direct replacement for worn original components on OMC Johnson outboard motors. It provides the precise adjustment needed to set proper idle speed for smooth operation. This part is ideal for restoring carburetor function on vintage two-stroke outboards.

Built For Performance

• Manufactured from corrosion-resistant materials for marine use
• Threads match original dimensions for secure fit
• Knob provides easy hand-turning without tools
• Retainer clip holds adjustment securely in place
• Replaces OEM part numbers 387272 and 321996

Fits These Machines

• for OMC Johnson outboard motors (1974–1985)

On-The-Job Use

• Adjusting idle speed on two-stroke outboard engines
• Tuning carburetor air/fuel mixture for optimal performance
• Replacing broken or stripped idle adjustment hardware
• Restoring idle control on vintage Johnson outboards

Specs At A Glance

Good To Know

Q: Will this fit a 1978 Johnson 25hp outboard? A: Yes, this part is compatible with OMC Johnson outboards from 1974-1985, including the 1978 25hp model. Check your serial number for exact confirmation.

Q: Is the knob metal or plastic? A: The knob is typically made of metal for durability in marine environments, but slight variations may exist between production runs.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.