Westerbeke Vire 7, Owner'S Manual, Page: 20 / 43

Reverse/Reduction Gear Lubrication:
Fill the box with oil so that the filler plug touches oil level when it is tightened and when the
engine is in normal position. A mark on the filler plug shows the absolute maximum level. The
oil quantity is 1-1/2 pints.
Checking the Spark Plug:
When cleaning the spark plug it is important to clean also the insulator part and the surrounding
area. Avoid scratching the insulator surface as scratches will make it easier for pollutants to stick.
To adjust the gap, bend the ground electrode by tapping it lightly to required direction. The
center electrode must not be bent. The gap is checked by using a 0.50 mm feeler gauge.
If the spark plug electrodes are worn, a new spark plug has to be installed. A spark plug in good
condition should always be available in your boat.
Drying the Wet Magneto
If you have reason to believe that water has entered the magneto, remove the pulley wheel and
spray moisture absorbant (CRC-56) through the opening in the flywheel.
If the engine still fails to start, remove the flywheel and the anchor plate and dry them thoroughly.
The CRC5-56 (or similar) can also be used on other electric equipment of the engine.
Cleaning the Carburetor Strainer
Remove the strainer for cleaning by loosening and removing the bottom screw on the carburetor
and take off the filer lid. The strainer lid should be removed with care so as not to damage the
gasket between the strainer and the lid. The strainer is cleaned with gasoline and dried with
compressed air. When re-assembling, check the gasket and install the strainer and the strainer lid
carefully to get a tight fit and thus avoid air leakage.
Cleaning the Carburetor
When the engine has not been in use for a period of time, the oil in the fuel may de-oxidize and
clog the carburetor. If this occurs, carefully remove the idling jet screw (4) and the main jet
screw (5), placing a vessel under the carburetor so that the spring, the intermediate plate and the
gasket do not get lost, and let the fuel flow through the screw holes for a while. If the fuel tank is
located at a level lower than the carburetor, and there is no hand pump, install a temporary pipe
through which fuel is led into the carburetor and allow the fuel to flow out the screw holes.
After this fasten the jet screws and adjust the carburetor. Should you have to open the carburetor
completely, observe great cleanliness and care and note especially the diaphragms and their
sealing surfaces should be treated with great caution. An air leakage in the sealing surface, valves
or connections may render the carburetor useless. Internal channel should be cleaned with
gasoline and compressed air. Steel tools, needles or similar should not be used.