Model Feature; General Feature - Yamaha F225F Service Manual

SPEC

Model feature

General feature

F(L)225F, F(L)250D, and F(L)300B overall feature
• Newly developed 60° V6, DOHC, 24-valve, 4-stroke 4169.0 cm
• Low exhaust emissions conform to EU regulations
• All models can use Digital network control
• Y-COP (optional in non-European markets)
a Power unit
• Plastic cylinder head covers
• Shimless valve lifters
• Large diameter intake valve heads
• Cylinder heads with integrated exhaust
cover
• Crankcase and oil filter bracket with oil
cooler
• Crankshaft with integrated drive sprocket
• Sleeveless cylinders
• Compact VCT assemblies with narrow tim-
ing belt
• Blowby gas reburning system
• Vapor gas treatment
b Electrical
• Electronic fuel injection control
• Ignition timing control
• VCT control
• Knock control
• Engine speed control
• ETV control
• Electronic shift control
• Fail-safe control
• New YDIS 1.33 version
• Multi-engine system for alert mode and
auto engine speed synchronization
• Adjusting trolling speed function
• High-output stator assembly
• Isolator for house (accessory) battery
• Water-cooled Rectifier Regulator
c Bracket unit
• Same type of bracket as F250A
• Same type of PTT unit as F250A
d Upper case
• Lightweight bottom cowling
• Vibration reduction mounting
• Water-sealed outer wall
1-1
Specification
3
(254.4 cu. in) engine
e Lower unit
• Dual water inlets
• Drive shaft with a double taper roller bear-
ing
• Propeller shaft with 3 bearings (regular
rotation model)
• Propeller damper cooling system
• Patented shift damper system
b
c
e
a
d