General Specifications
HP / kW
250 HP / 186.3 kW
Displacement
3344 cc (204.1 cu in.)
Cylinders
6 (V6 76°)
WOT RPM
4500 - 5500
Weight
244 kg / 538 lbs
Drive & Lower Unit
Gear Ratio
1.75:1
Shaft Length
20", 25"
Electrical System
Alternator Output 630 Watts
Starting System Electric
Technical Maintenance Toolkit
Verified service specifications for the Yamaha 250hp V6 HPDI (2005)
Lubrication
Engine Oil
Yamalube 2-M
Gearcase Lube 980 ml
Ignition System
Spark Plug
NGK BKR7HSU (Surface Gap)
Gap Setting 1.0mm
Firing Order 1-2-3-4
Performance Specs
Idle RPM 700 ± 50
WOT Range 4500-5500
Alternator 630W
Standard Maintenance Intervals
20H Break-in Service
100H Annual Tune-up
300H Water Pump & Seals
Identification
The serial number for the Yamaha 250hp V6 HPDI is typically found on a plate located on the transom bracket.
Technical Toolkit
Maintenance Compatibility
These models share common service parts with the Yamaha 250hp V6 HPDI:
Model Evolution
History of the Yamaha 250HP series over the years:
Category Discovery
Reference Data
Information compiled from Yamaha Marine factory service manuals and original sales literature published in 2005.