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Low Speed Adjustment Knob for Johnson Evinrude 74-92 Slow Idle Rich Lean 319152
$30.79
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$30.79
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This Low Speed Adjustment Knob is a carburetor adjustment part compatible with Johnson and Evinrude outboard motors (1974-1992) and matches OEM Part# 319152.
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I needed a forklift part and wasn’t sure which one fit. They asked for the model and serial number, got back to me quickly, and made sure I ordered the right one. Really helpful.
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Product Overview
This low speed adjustment knob lets you fine-tune the idle mixture on Johnson and Evinrude outboard engines from the 1974-1992 era. Turning the knob adjusts the slow speed rich/lean fuel ratio, helping you achieve a smooth idle and optimal performance. It is a direct replacement for the original OEM part and restores proper carburetion control.
Key Features & Performance
- Precise low speed mixture adjustment for smooth idle and throttle response
- Direct replacement for OEM Part# 319152
- Simple hand-tool operation ��� no special tools required
- Durable plastic and metal construction resists corrosion
- Compatible with most Johnson and Evinrude carburetors from the 74-92 period
Fitment & Compatibility
- Johnson outboard motors (1974-1992)
- Evinrude outboard motors (1974-1992)
- Fits select carburetor models using low speed adjustment screw
Common Uses
- Adjusting slow idle speed on Johnson/Evinrude outboards
- Tuning rich/lean fuel mixture for smoother operation
- Replacing a missing or broken adjustment knob
- Performing carburetor maintenance on vintage outboard motors
Technical Specifications
- Part Number(s): 319152
- Material: Plastic knob with metal insert
- Function: Low speed idle mixture adjustment
Frequently Asked Questions
Q: Will this knob fit a 1985 Evinrude 70 HP? A: Yes, it is compatible with many Johnson and Evinrude models from 1974 to 1992, including the 70 HP series; verify your carburetor type.
Q: What does the knob adjust exactly? A: It controls the low speed fuel mixture ��� turning clockwise leans the mixture, counterclockwise richens it for smoother idling.
Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.