E

903021

605014

EMU00338

Flushing Cooling System and Fogging Engine

Cooling system flushing is essential to prevent the cooling system from clogging up with salt, sand, or dirt. In addition, fogging of the engine is mandatory to prevent expensive engine damage due to rust. Perform the flushing and fogging at the same time.

w

8Do not touch or remove electrical parts when starting or during operation.

8Keep hands, hair and clothes away from flywheel and other rotating parts while engine is running.

EMU01544

Flushing with the Flushing Attachment

cC

Avoid running the outboard at high speed while on the flushing attachment, or overheating could occur.

1)Remove the top cowling and silencer cover. Remove the propeller.

2)Install a flushing attachment to the lower unit. (A flushing attachment is available from a Yamaha dealer).

3)Run the engine at a fast idle for 10-15 minutes while supplying water.

4)Just prior to turning off the engine, quickly spray “Yamaha Stor-Rite Engine Fogging Oil” (Part No. LUB- STRRT-12-00) alternately into each intake manifold. When properly done, the engine will smoke excessively and almost stall.

5)Remove the flushing attachment and wipe off any excess water.

6)Install the silencer cover and top

cowling. Install the propeller.

4-5