Specifications

GENERAL INFORMATION
36 eng
Models 225 250 250 Pro 300 Pro 300
Kilowatts 165 184 184 221 221
Full throttle RPM range 5800‑6400
Idle speed in neutral
gear
1.
550 RPM
Number of cylinders 6
Piston displacement 2,598 cc (158.5 cid)
Cylinder bore 82 mm (3.23 in.)
Stroke 82 mm (3.23 in.)
Valve clearance (cold)
Intake valve 0.150–0.270 mm (0.0059–0.0106 in.)
Exhaust valve 0.350–0.470 mm (0.0137–0.0185 in.)
Recommended spark plug NGK ILFR6G‑E
Spark plug gap 0.8 mm (0.0315 in.)
Spark plug hex size 16 mm
Gear ratio
1 in. propeller shaft 1.85:1 1.85:1 1.85:1 1.75:1 1.85:1
1‑1/4 in. propeller shaft 1.75:1
Recommended gasoline Refer to Fuel and Oil
Recommended oil Refer to Fuel and Oil
Gearcase lubricant
capacity
Refer to Maintenance ‑ Gearcase Lubricant
Engine oil capacity with oil
filter replacement
7.0 liter (7.4 US qt)
Required starting battery
type
12 volt AGM (absorbed glass mat) battery
Required USA (SAE)
starting battery type
800 minimum marine cranking amps (MCA) with
a minimum reserve capacity of 135 minutes
RC25 rating
Required International
(EN) starting battery type
1000 minimum cold cranking amps (CCA) with a
minimum of 180 amp hours (Ah)
Emission control system Electronic engine control (EC)
Sound at drivers ear
(ICOMIA 39‑94) dBA
78.8
1. With engine fully warmed up.