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Yanmar Pleasure Boat Marine Engine Help
Maximum RPM Table - loaded engine
Make sure the following criteria are met before checking the maximum engine rpm:
- Weight - the boat is fully loaded
- Clean - the hull and appendages are spotlessly clean
- Measuring devices and distances are accurate
- Throttle lever on the engine touches the maximum rpm stop
- Speed - before taking a reading, make sure the boat is up to speed
| Engine model | Hand held tacho | Boat engine tacho |
|---|---|---|
| GM series | 3550-3650 | 3650-3750 |
| JH and JH2 series | 3600-3650 | 3750-3800 |
| JH3 series | 3800-3850 | 3950-4000 |
| LH and LY series | 3300-3330 | 3450-3480 |
| LP series | 3850-3950 | 4000-4100 |
| CX-ETE | 2700-2730 | 2850-2880 |
| CX-GTE2 | 2900-2930 | 3150-3180 |
- Note that later, when the boat is not fully loaded, the engine will rev higher.
- Count from '1' to '10' while moving the throttle lever between idle and full power.
- Maximum loaded RPM is adjusted by altering the PROPELLER
