2009 Yamaha Motorsports Grizzly 350 Auto. 4x4 IRS Owners Manual - Page 115
2009 Yamaha Motorsports Grizzly 350 Auto. 4x4 IRS Manual
Page 115 highlights
EBU23882 TIP The air filter element should be cleaned every 20- 40 hours. It should be cleaned and lubricated more often if the ATV is operated in extremely dusty areas. Each time the air filter element maintenance is performed, check the air inlet of the air filter case for obstructions. Check the air filter case rubber joint to the carburetor fittings and the rubber joint manifold fittings for an air-tight seal. Tighten all fittings securely to avoid the possibility of unfiltered air entering the engine. ECB00460 Cleaning the spark arrester Be sure the exhaust pipe and muffler are cool before cleaning the spark arrester. 1. Remove the bolts. NOTICE Make sure that the air filter element is properly seated in the air filter case. G Never operate the engine with the air filter element removed. This will allow unfiltered air to enter the engine, 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. G 1. Bolt 2. Tailpipe 8 2. Remove the tailpipe by pulling it out of the muffler. 3. Tap the tailpipe lightly, and then use a wire brush to remove any carbon deposits from the spark arrester portion of the tailpipe and inside of the tailpipe housing. 8-25