2007 Yamaha Motorsports Rhino 660 Auto. 4x4 Owners Manual - Page 124

2P512001 The air filter element should be cleaned every 20-40 hours. It should be cleaned and lubricated more often if the vehicle is operated in extremely dusty areas. Each time air filter element maintenance is performed, check the air inlet to the air filter case for obstructions. Check the air filter element rubber joint to the carburetor and manifold fittings for an airtight seal. Tighten all fittings securely to avoid the possibility of unfiltered air entering the engine. Drive select lever box check hose The drive select lever box check hose is located under the console. (See page 8-9 for console removal and installation procedures.) If dust or water collects in the drive select lever box check hose, remove the hose and clean it. NOTICE Never operate the engine with the air filter element removed. This will allow unfiltered air to enter, causing rapid engine wear and possible engine damage. Additionally, operation without the air filter element will affect carburetor jetting with subsequent poor performance and possible engine overheating. 1. Drive select lever box check hose 8-29