On-Vehicle Service and Adjustments

Checks and adjustments made with the carburetor on the engine: float level check, choke and hose inspection, choke check procedures, vacuum break checking, fast idle adjustment, idle speed adjustment, throttle kicker adjustment, and idle mixture check and adjustment for light duty and heavy duty applications. Procedures are written as step lists with emission label references.

What this section covers

• Float level check
• Choke and hoses, choke check
• Vacuum break checking procedure
• Fast idle adjustment
• Idle speed adjustment
• Throttle kicker adjustment
• Idle mixture check and adjustment (LD and HD)