Generac — Dynamic Governor Adjustment
Adjustments
From a Generac service manual covering: EVT-04629-0, EVT-04629-1, EVT-04717-0, EVT-04797-0. Check it applies to your exact model before use.
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Before you start
- Do not tamper with the engine governed speed.
Procedure
- Start engine and allow to warm up for 5 minutes.
- Move speed control lever to slow speed position and hold throttle lever against idle stop screw.
- Adjust stop screw to maintain 1200 RPM idle.
- Slowly move speed control lever to high speed position; do not exceed 4000 RPM.
- With speed control at high speed, adjust high speed screw to obtain desired engine speed.
Tools required
- Tachometer Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Idle approximately 1200 RPM
- Do not exceed 4000 RPM
Source: Generac service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.