User manual KOHLER KD400

[. . . ] Air Cleaner and Air Intake System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section 5. Fuel System and Governor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section 6. Lubrication System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section 7. Electrical System and Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section 8. [. . . ] Other gasoline/alcohol blends including E20 failures resulting from use of these fuels will not be warranted. Operation 5 mixture is then burned in the engine combustion chamber. Fuel Filter (Optional) yearly or every 50 hours of Fuel Filter Figure 5-1. Troubleshooting Use the guide on the following page to determine if fuel is reaching the combustion chamber. 5. 1 Section 5 Fuel System and Governor Fuel System Test Guide Test 1. Conclusion Gasoline components oxidize over time resulting Replace old gas with fresh gas. If no fuel spray is entering carburetor, replace primer bulb or primer hose. Carburetor WARNING: Explosive Fuel! Figure 5-2. Carburetor With Choke. Troubleshooting -- Fuel System carburetor. · Air cleaner element is clean, and all air cleaner components are fastened securely. 5. 2 Section 5 Fuel System and Governor Fuel System Troubleshooting Guide 1. Disassemble and Carburetor Adjustments While this carburetor is designed to deliver the necessary. Engines with Primer Bulb 5 Idle Adjustment Screw Do not tampered with this screw on engines with a primer bulb, since these models operate only at full speed, and do not idle. Speed Control Screw. 5. 3 Section 5 Fuel System and Governor Carburetor Removal NOTE: WARNING: Explosive Fuel! 2. Remove foam precleaner (if equipped) and paper element. Square Gasket Carburetor Notched Gasket Cylinder Head Spacer Figure 5-7. Carburetor Gasket Sequence (Exploded View). Carburetor Disassembly A light tap on the tower will dislodge the Emmulsion Tube Tower Fuel-Inlet Needle Figure 5-9. 5. 4 Section 5 Fuel System and Governor plate and the carburetor body with a waterproof Choke Lever Throttle Shaft Choke Spring Choke Shaft Choke Plate Figure 5-10. by corresponding wear to the carburetor 5 Throttle Lever Primer Vent Pilot Jet Throttle Shaft Throttle Adjustment Screw Throttle Plate Screw Choke Lever Choke Shaft Choke Spring Throttle Plate Screw Throttle Plate Throttle Plate Tower Tower Fuel Inlet Needle Emmulsion Tube Main Jet Float Float Pin O-Ring Drain Screw Fuel Bowl Screw Choke Plate Fuel Inlet Needle Float Pin Carburetor with Primer Figure 5-12. Make sure the engine is stopped, level, and cool so the oil has had time to drain into the sump. Oil Type Use high-quality detergent oil of API (American Petroleum Institute) service class SJ or higher. Select the viscosity based on the air temperature at the time of operation. See Figure 6-1. RE CO M M E N D E D S A E VIS C OS IT Y GR A D E S 10W-30, SAE 30 10W-30 °F -20 °C -30 -20 0 -10 20 32 0 40 10 60 20 80 30 100 40 keep dirt and grass clippings out of the engine. 6 screw the cap into the tube. See Figure 6-3. TEMPERATURE RANGE EXPECTED BEFORE NEXT OIL CHANGE Figure 6-1. NOTE: Using oil other than service class SJ or higher, or extending oil change intervals longer than recommended can cause engine damage. Oil should be up to, but not over the "F" or FULL mark on the dipstick. Always check the level with the dipstick before adding more oil. SJ securely. Section 6 Lubrication System engine back to level. Full Mark Operating Range Low Mark Figure 6-4. NOTE: To prevent extensive engine wear or damage, always maintain the proper oil level in the crankcase. Never operate the engine with the oil level below the "L" or LOW mark, or over the FULL mark on the dipstick. 4. Fill the crankcase with new oil of the proper type to the FULL mark on the dipstick. Always check the oil level with the dipstick in when checking oil level. [. . . ] NOTE: If the stud for mounting the ignition module was not kept segregated from the two studs for mounting the fuel tank, compare their lengths and choose the short one. Install Fuel Tank removed) with the two bracket screws. lb. ). Stud Spacer Hex Flange Screw Bracket Screws 10 Bracket Figure 10-31. Attaching Fuel Tank Bracket. 10-33. 10. 9 Section 10 Reassembly 3. Secure the top of the fuel tank to the crankcase by installing the two threaded studs. [. . . ]