Polaris Sportsman 800 Big Boss - Manual (Page 34)

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FEATURES AND CONTROLS
Master Cylinder/Brake Fluid
An over-full master cylinder may cause brake drag or brake lock-up, which could
result in an accident. Maintain brake fluid at the recommended level. Do not
overfill.
Never store or use a partial bottle of brake fluid. Brake fluid is hygroscopic,
meaning it rapidly absorbs moisture from the air. The moisture causes the
boiling temperature of the brake fluid to drop, which can lead to early brake fade
and the possibility of brake failure, which could result in an accident. After
opening a bottle of brake fluid, always discard any unused portion.
The master cylinders are located on the left and right handlebars. Check
the fluid levels of both master cylinders before each use of the vehicle.
1. Position the vehicle on a level surface.
2. Position the handlebars so the master cylinders are level.
3. View the brake fluid level through the indicator window on the top
of the master cylinder. The eye will appear dark when the fluid level
is full. When fluid is low, the eye will be clear.
4. If the fluid level is low add DOT 4 brake fluid only. Do not overfill.
WARNING
Master Cylinders
Indicator Windows