Every 250 Hours of Operation
Perform the following maintenance every
250 hours of operation.
• Touching-Up the Stern-Drive Paint and
Spray with Corrosion Guard
• Retorqueing the Rear Engine Mounts
• Changing the Stern-Drive Oil
Touching-Up the Stern-Drive Paint
and Spray with Corrosion Guard
Corrosion damage that results from
improper application of anti-fouling paint will
not be covered by the warranty.
Painting vessel hull or vessel transom:
Anti-fouling paint may be applied to the
vessel hull and the vessel transom.
NOTICE: NEVER paint the anodes or Y-
CaPS electrode. Painting these
components will render them ineffective as
galvanic corrosion inhibitors.
NOTICE: Use copper-based paint as anti-
fouling protection for the vessel hull or
vessel transom, as long as it is not prohibited
by law in the area where the vessel will be
operated. If using copper- or tin-based anti-
fouling paint, avoid an electrical
interconnection between the Yanmar
Product, Anodic Blocks, or Y-CaPS and the
paint by allowing a minimum of 40 mm (1-1/2
in.) of UNPAINTED area on the transom of
the vessel and around these items.
(2)
(1)
0006341
Figure 11
1 – Painted Vessel Transom
2 – Minimum 40 mm (1-1/2 in.) of
unpainted area around transom
assembly
NOTICE: The drive unit and transom
assembly can be painted with a good quality
marine paint or an anti-fouling paint that
does not contain copper or any other
material that could conduct electrical
current. NEVER paint drain holes, anodes,
Y-CaPS or items specified by the vessel
manufacturer.
NOTICE: NEVER wash the stern-drive with
a power washer because it can damage the
coating on the reference wire and increase
corrosion.
Retorqueing the Rear Engine
Mounts
See Torqueing the Rear Engine Mount Bolts
on page 44.
Changing the Stern-Drive Oil
Note: The Stern-Drive oil must be changed
every 250 hours or every year, whichever
comes first.
MAINTENANCE
46
ZT350 Operation Manual
© 2008 Yanmar Marine International
