PURSUIT OS 285, Owner'S Manual

Page: 19 / 136

Propulsion Systems
1-1
Section 1
OS 285
Propulsion System
1.1 General
Twin 2-cycle or 4-cycle outboard motors
power your Pursuit boat.
Manufacturer of the outboard motors provide
an owner’s information manual, which
includes the limited warranty statement. It is
important you read this information very
carefully, become familiar with the warranty,
proper care and operation of the engine, and
drive system.
1.2 Outboard Saltwater
Application
Connected to the power head with a vertical
drive shaft, outboard motors have a drive
system with a gear case just forward of the
propeller. Besides routine maintenance as
outlined in the engine owner’s manual, very
little needs to be done unless the boat is to
be kept in saltwater for extended periods, as
extended immersion in saltwater causes
marine growth and galvanic corrosion.
Marine growth occurs with extended immer-
sion in water and can cause poor perfor-
mance or permanent damage to the
exposed components. The type of growth,
and how quickly it occurs, is relative to water
conditions in your boating area. Water tem-
perature, pollution, current, etc. can have an
effect on marine growth.
Galvanic when metals are submerged in an
electrolyte. Outboard motors are equipped
with sacrificial zinc anodes to prevent gal-
vanic corrosion problems caused by expo-
sure to seawater, an electrolyte. Monitor and
replace anodes as necessary. For anode
locations and maintenance, please refer to
the engine owner’s manual.
When leaving the boat in the water, tilt the
motors as high as possible. This will
decrease the risk of marine growth around
the cooling inlets, propeller and exhaust
ports, and damage from galvanic corrosion.
1.3 Engine Lubrication
4-Cycle Engines
Check the engine oil level before each use
by checking the engine’s dipstick. A sump in
the engine’s crankcase provides lubrication
for the engine. 4-cycle engines do consume
a small amount of oil during normal opera-
tion. Maintain engine oil recommended fill
level using only the type and grade of oil rec-
ommended by the engine manufacturer.
Change the oil at regular intervals according
to the owner’s manual instructions. Use only
the type of oil specified by the engine manu-
facturer.
!
WARNING
Do not attempt to service any engine
or drive component without being
completely familiar with safe handling
and proper service procedures.
Exposed moving parts can be danger-
ous to someone unfamiliar with the
operation and function of the equip-
ment.
!
CAUTION
Use only clean, dry fuel of the type
and grade recommended by the
engine manufacturer. The use of
incorrect or contaminated fuel can
cause engine malfunction and serious
damage.
!
CAUTION
Do not paint the outboard motors with
antifouling paints designed for boat
hulls. Many of these paints can cause
severe damage to the engines. Con-
tact your Pursuit dealer or engine
manufacturer for information on the
proper painting procedures.