MerCruiser 350 Magnum MPI, Operation & Maintenance Manual

Page: 33 / 76

31
CC103
Maintenance
EFI System Maintenance Precautions
! WARNING
Avoid Injury or Electrical System Damage: Always disconnect battery cables from battery before working
around electrical system components. See IMPORTANT statement following:
! CAUTION
Avoid damage to the EFI electrical system components: Refer to the following precautions when working
on or around the EFI electrical harness, or when adding other electrical accessories:
•
DO NOT tap accessories into engine harness.
•
DO NOT puncture wires for testing (Probing).
•
DO NOT reverse battery leads.
•
DO NOT splice wires into harness.
•
DO NOT attempt diagnostics without proper, approved Service Tools.
IMPORTANT: Refer to MAINTENANCE CHART for complete listing of all scheduled maintenance to be per-
formed. Some listings can be done by owner/operator, while others should be performed by an Authorized
MerCruiser Dealer. Before attempting maintenance or repair procedures not covered in this manual, it is
recommended that a MerCruiser Service Manual(s) be purchased and read thoroughly.
CC316
Maintenance Products
! WARNING
Always disconnect battery cables from battery before working around electrical system components to
prevent injury to yourself or damage to electrical system.
IMPORTANT: Refer to MAINTENANCE CHART for complete listing of all scheduled maintenance to be per-
formed. Some listings can be done by owner/operator, while others should be performed by an Authorized
MerCruiser Dealer. Before attempting maintenance or repair procedures not covered in this manual, it is
recommended that a MerCruiser Service Manual(s) be purchased and read thoroughly.
! CAUTION
Avoid damage to transmission. The transmission on your MerCruiser product is filled with Dexron III trans-
mission fluid at the factory. Do not mix other transmission fluids with Dexron III transmission fluid.
1
Velvet Drive Transmission - Dexron III Transmission Fluid or 10 wt. tractor hydraulic fluid meeting the C-3/TO-2
specification. (Preferably Mobil 424, Chevron, or Citgo.)
2
All Pivot Points - SAE 30W motor oil.
3
Fogging (Winterizing) Engine - Quicksilver Storage Seal or SAE 20W motor oil.
4
Crankcase Oil - Quicksilver 4-Cycle Marine Engine Oil. (Refer to SPEClFlCATlONS for alternatives and oil rec-
ommendations for varying ambient temperatures.)
5
All Exterior Surfaces - Quicksilver Primer and Spray Paint and Quicksilver Corrosion Guard.
6
Gasoline Stabilizer - Quicksilver Gasoline Stabilizer for Marine Engines.