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Kohler — Fuel System Procedure

A Kohler service procedure — check it applies to your exact model before use.

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Procedure

  1. 3. Disconnect negative (-) battery cable.
  2. 4. Store engine in a clean, dry place. 5 Specifi cations 20 690 01 Rev. J KohlerEngines.com VALVE COVER VIEW Dimensions in millimeters. Inch equivalents shown in [ ]. Engine Dimensions 6 Specifi cations KohlerEngines.com 20 690 01 Rev. J Model . . . . . . . . . . . . . . . . . . . . . SV470 Courage Engine Vertical Shaft Numerical Designation Specifi cation . . . . . . . . . . . . . . . SV470-0001 Serial . . . . . . . . . . . . . . . . . . . . . 4823500328 Year Manufactured Code Factory Code Code Year 48 2018 49 2019 50 2020 ENGINE IDENTIFICATION NUMBERS Kohler engine identifi cation numbers (model, specifi cation and serial) should be referenced for effi cient repair, ordering correct parts, and engine replacement. GENERAL SPECIFICATIONS3.6 SV470/ SV471/ SV480 SV530/ SV540/ SV541 SV590/SV591/ SV600/SV601/ SV610/SV620 Bore Spec. 00XX: Spec. 01XX: Spec. 02XX or higher: --- 84 mm (3.30 in.) 89 mm (3.50 in.) 94 mm (3.70 in.) --- 89 mm (3.50 in.) --- 94 mm (3.70 in.) 94 mm (3.70 in.) --- --- --- Stroke 86 mm (3.38 in.) Displacement Spec. 00XX: Spec. 01XX: Spec. 02XX or higher: --- 477 cc (29.1 cu. in.) 535 cc (32.6 cu. in.) 597 cc (36.4 cu. in.) --- 535 cc (32.6 cu. in.) --- 597 cc (36.4 cu. in.) 597 cc (36.4 cu. in.) --- --- --- Oil Capacity (refi ll) 1.5 L (1.6 U.S. qt.) Maximum Angle of Operation (@ full oil level)4 25° TORQUE SPECIFICATIONS3,5 SV470/ SV471/ SV480 SV530/ SV540/ SV541 SV590/SV591/ SV600/SV601/ SV610/SV620 Air Cleaner Base Hex Nut Fastener 5.5 N·m (48 in. lb.) Mounting Screw Fastener (install dry) 8.0 N·m (70 in. lb.) into new hole 5.5 N·m (48 in. lb.) into used hole Balance Weight Screw 10.9-13.2 N·m (95.0-115.0 in. lb.) Blower Housing and Sheet Metal M6 Fastener 11.6 N·m (99 in. lb.) into new hole 7.7 N·m (68 in. lb.) into used hole Cam Lever Fastener 8.0-10.5 N·m (70-94.0 in. lb.) into new hole 7.1-8.6 N·m (61.8-74.8 in. lb.) into used hole 3 Values are in Metric units. Values in parentheses are English equivalents. 4 Exceeding maximum angle of operation may cause engine damage from insuffi cient lubrication. 5 Lubricate threads with engine oil prior to assembly. 6 Any and all horsepower (hp) references by Kohler are Certifi ed Power Ratings and per SAE J1940 & J1995 hp standards. Details on Certifi ed Power Ratings can be found at KohlerEngines.com. 7 Specifi cations 20 690 01 Rev. J KohlerEngines.com TORQUE SPECIFICATIONS3,5 SV470/ SV471/ SV480 SV530/ SV540/ SV541 SV590/SV591/ SV600/SV601/ SV610/SV620 Carburetor Fuel Bowl Retaining Screw Walbro Nikki 5.1-6.2 N·m (45-55 in. lb.) 10.8-12.8 N·m (96-113 in. lb.) Closure Plate Fastener 24.5 N·m (216 in. lb.) Connecting Rod Cap Fastener (torque in 2 increments) 5.5, 11.5 N·m (50, 100 in. lb.) Crankcase Oil Drain Plug 14.0 N·m (125 in. lb.) Cylinder Head Fastener (torque in 2 increments) 20.5, 41.0 N·m (180, 360 in. lb.) Rocker Arm Pivot Stud 13.5 N·m (120 in. lb.) Rocker Arm Adjustment Nut Set Screw 5.5 N·m (50 in. lb.) Electric Starter Thru Bolt 3.3-3.9 N·m (30-35 in. lb.) Mounting Nut 3.6 N·m (32 in. lb.) Nut (top) Positive (+) Brush Lead Terminal 1.6-2.8 N·m (15-25 in. lb.) Nut (fl ange) Positive (+) Brush Lead Terminal 2.2-4.5 N·m (20-40 in. lb.) Flywheel M12 Retaining Screw 88.0 N·m (65 ft. lb.) M10 Retaining Screw 66.5 N·m (49 ft. lb.) Governor Lever Nut 7.0-8.5 N·m (60-75 in. lb.) Ignition Spark Plug 27 N·m (20 ft. lb.) Module Fastener 6.0 N·m (55 in. lb.) into new hole 4.0 N·m (35 in. lb.) into used hole Rectifi er-Regulator Fastener 6.0 N·m (55 in. lb.) into new hole 4.0 N·m (35 in. lb.) into used hole Muffl er Retaining Nuts 24.4 N·m (216 in. lb.) Oil Filter Pad Pipe Plug 1/8” N.P.T.F. 4.5-5.0 N·m (40-46 in. lb.) Oil Pump Mounting Screw 5.0-7.5 N·m (44.4-66.0 in. lb.) into new hole 3.8-4.6 N·m (33.3-40.3 in. lb.) into used hole 3 Values are in Metric units. Values in parentheses are English equivalents. 5 Lubricate threads with engine oil prior to assembly. 8 Specifi cations KohlerEngines.com 20 690 01 Rev. J TORQUE SPECIFICATIONS3,5 SV470/ SV471/ SV480 SV530/ SV540/ SV541 SV590/SV591/ SV600/SV601/ SV610/SV620 Oil Sentry™ Pressure Switch 4.5-5.0 N·m (40-45 in. lb.) Speed Control Bracket Assembly Fastener 11.0 N·m (95 in. lb.) into new hole 7.5 N·m (65 in. lb.) into used hole Stator Mounting Screw 6.0 N·m (55 in. lb.) into new hole 4.0 N·m (35 in. lb.) into used hole Valve Cover Fastener 11.0 N·m (95 in. lb.) into new hole 7.5 N·m (65 in. lb.) into used hole CLEARANCE SPECIFICATIONS3 SV470/ SV471/ SV480 SV530/ SV540/ SV541 SV590/SV591/ SV600/SV601/ SV610/SV620 Balance Weight Bearing Surface I.D. New Max. Wear Limit 67.011/67.086 mm (2.6382/2.6412 in.) 67.140 mm (2.6430 in.) Pin O.D. New Max. Wear Limit 11.950/11.975 mm (0.4705/0.4715 in.) 11.900 mm (0.4685 in.) Guide Shoe Width New Max. Wear Limit 17.85/17.90 mm (0.703/0.705 in.) 17.75 mm (0.6988 in.) Guide Shoe Hole I.D.-First Generation Balance Weight New Max. Wear Limit 12.000/12.025 mm (0.4724/0.4734 in.) 12.050 mm (0.4744 in.) Linkage Pin O.D. (Crankcase)-Second Generation Balance Weight New Max. Wear Limit 11.964/11.975 mm (0.4710/0.4715 in.) 11.900 mm (0.4685 in.) Balance Weight Linkage-Second Generation Balance Weight New Max. Wear Limit 11.985/12.010 mm (0.4719/0.4728 in.) 12.035 mm (0.4738 in.) Cam Gears End Play 0.5/1.5 mm (0.019/0.059 in.) Running Side Clearance 0.02/0.13 mm (0.001/0.005 in.) Cam Gear-to-Cam Shaft Running Assembly 0.02/0.10 mm (0.001/0.004 in.) Closure Plate Balance Weight Guide Channel Width New Max. Wear Limit 17.95/18.05 mm (0.707/0.711 in.) 18.13 mm (0.714 in.) 3 Values are in Metric units. Values in parentheses are English equivalents. 5 Lubricate threads with engine oil prior to assembly. 9 Specifi cations 20 690 01 Rev. J KohlerEngines.com CLEARANCE SPECIFICATIONS3 SV470/ SV471/ SV480 SV530/ SV540/ SV541 SV590/SV591/ SV600/SV601/ SV610/SV620 Connecting Rod Connecting Rod-to-Crankpin Running Clearance New Max. Wear Limit 0.03/0.055 mm (0.0012/0.0022 in.) 0.07 mm (0.0025 in.) Connecting Rod-to-Crankpin Side Clearance 0.25/0.59 mm (0.0098/0.0232 in.) Connecting Rod-to-Piston Pin Running Clearance 0.015/0.028 mm (0.0006/0.0011 in.) Crankcase Governor Cross Shaft Bore I.D. New Max. Wear Limit 6.025/6.05 mm (0.2372/0.2382 in.) 6.063 mm (0.2387 in.) Crankshaft End Play (free) 0.225/1.025 mm (0.0089/0.040 in.) Bore in Crankcase I.D. New Max. Wear Limit 41.965/41.990 mm (1.6521/1.6531 in.) 42.016 mm (1.654 in.) Bore in Closure Plate I.D. New Max. Wear Limit 44.965/44.990 mm (1.7703/1.7713 in.) 45.016 mm (1.7723 in.) Flywheel End Main Bearing Journal O.D. New, Before Serial No. 3703200003 New, After Serial No. 3703200013 O.D., Max. Wear Limit Max. Taper Max. Out of Round 44.9

Source: manual:20_690_01_EN.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.