2009 Suzuki 400 LTZ Quad Sport Service Manual, Page 43Get this manual
Maintenance and Lubrication: Brake fluid level check Inspect brake fluid level Every months 1) Place the vehicle on level ground and place the handlebars straight2) Check the brake fluid level by observing the lower limit lines on the brake fluid reservoirWhen the brake fluid level is below the lower limit line, replenish with brake fluid that meets the following specificationBF: Brake fluid (DOT 4) Front and rear brake hose inspection Inspect brake hose Every months
Inspect the brake hoses and hose joints for crack, damage or brake oil leakageIf any defects are found, replace the front and rear brake hoses with new onesRefer to "Brake Hose Removal and Installation in Section 4A (Page 4A-9)"
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