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Cub Cadet 1650 Engine
Cub Cadet 1650 Engine Specifications
Engine Model ........... K341AQS
Engine Type ........... 4-Cycle, one cylinder air-cooled gasoline
Number of Cylinders ........... Single
Displacement, L (cu in) ........... 0.588 (35.9)
Engine Bore, mm (in) ........... 95.4 (3.75)
Engine Stroke, mm (in) ........... 82.6 (3.25)
Maximum Horse Power, hp (kW) ........... 16.0 (12.0)
Rated Engine Speed, rpm ........... 3600
Fuel System ........... Carburetor
Carburetor Model ........... Kohler/Walbro
Carburetor Type ........... Fixed main jet or adjustable main jet
Lubrication System ........... Splash type
Cooling System ........... Forced-air
Ignition System ........... Magneto or battery
Starter Type ........... Recoil or electric
Cub Cadet 1650 Engine Maintenance Data
Engine Oil and Filters
Engine Oil Type (Summer) ........... SAE 30W
Engine Oil Type (Winter) ........... SAE 5W-20, 5W-30
Oil Classification ........... API SF, SG
Oil Capacity, L (qts) ........... 2.21 (2.26)
Oil Filter Part Number ........... AM107423
Air Filter Part Number ........... AM47494
Valve Adjustment
Intake Valve Clearance, mm (in) ........... 0.20-0.25 (0.008-0.010)
Exhaust Valve Clearance, mm (in) ........... 0.40-0.50 (0.017-0.019)
Intake Valve Seat Width, mm (in) ........... 0.936-1.139 (0.037-0.045)
Exhaust Valve Seat Width, mm (in) ........... 0.936-1.139 (0.037-0.045)
Carburetor Adjustment
Kohler Adjustable Jet (Low Idle Fuel) ........... 2-1/2 turns
Kohler Adjustable Jet (High Idle Fuel) ........... 3-1/2 turns
Walbro Fixed Jet (Low Idle Fuel) ........... 1 turn
Walbro Adjustable Jet (Low Idle Fuel) ........... 2-1/2 turns
Walbro Adjustable Jet (High Idle Fuel) ........... 1-1/4 turns
Low Idle Speed, rpm ........... 1200±75
Ignition System
Spark Plug Type ........... Champion RH10
Spark Plug Size, mm (in) ........... 14.0 (0.553)
Spark Plug Gap, mm (in) ........... 0.65 (0.0256)
Breaker Point Gap (Nominal), mm (in) ........... 0.50 (0.020)
Cub Cadet 1650 Engine Service Data
Cylinder Block
Sleeve Internal Diameter, mm (in) ........... 95.2627-95.2373
(3.7505-3.7495)
Piston Skirt Outside Diameter, mm (in) ........... 95.0595-95.0214
(3.7425-3.741)
Top Compression Ring End Gap, mm (in) ........... 0.177-0.432
(0.007-0.017)
Second Compression Ring End Gap, mm (in) ........... 0.177-0.432
(0.007-0.017)
Connecting Rod Small End Inside Diameter, mm (in) ...........
22.2428-22.2504 (0.8757-0.876)
Piston Pin Outside Diameter, mm (in) ........... 22.2300-22.2352
(0.8752-0.8754)
Valves
Valve Clearance (Intake), mm (in) ........... 0.20-0.25 (0.0079-0.0099)
Valve Clearance (Exhaust), mm (in) ........... 0.43-0.48 (0.0169-0.0189)
Intake Valve Head Diameter, mm (in) ........... 34.798-35.052
(1.370-1.380)
Exhaust Valve Head Diameter, mm (in) ........... 34.798-35.052
(1.370-1.380)
Stem Outside Diameter (Intake, Std), mm (in) ........... 7.887-7.899
(0.3105-0.3110)
Stem Outside Diameter (Exhaust, Std), mm (in) ........... 7.833-7.851
(0.3084-0.3091)
Valve Guide Inside Diameter (Intake, Exhaust), mm (in) ...........
7.894-7.919 (0.312-0.313)
Valve Seat Angle (Intake, Exhaust), degrees ........... 89
Valve Seat Width (Intake), mm (in) ........... 0.936-1.139 (0.037-0.045)
Valve Seat Width (Exhaust), mm (in) ........... 0.936-1.139
(0.037-0.045)
Valve Guide Depth (Intake), mm (in) ........... 40.126 (1.586)
Valve Guide Depth (Exhaust), mm (in) ........... 37.874 (1.497)
Valve Face Angle (Intake, Exhaust), degrees ........... 45
Cub Cadet 1650 Engine Tightening Torque Specs
Cylinder Head Bolts, Nm (ft-lbs) ........... 34-41 (25-30)
Flywheel, Nm (ft-lbs) ........... 68-81 (50-60)
Spark Plug, Nm (ft-lbs) ........... 25-30 (18-22)
Connecting Rod, Nm (ft-lbs) ........... 32.1 (23.8)
Governor Bushing, Nm (ft-lbs) ........... 11.2-13.6 (8.3-10.1)
Fuel Pump Mounting Screws, Nm (ft-lbs) ........... 4.2-5.1 (3.1-3.8)
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CUB CADET TRACTORS SPECIFICATIONS |
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ENGINES FOR CUB CADET LAWN TRACTORS |
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CUB CADET TRACTORS TROUBLESHOOTING | ||||
1050 | 1863 | 2166 | 2182 | 2186 |
3184 | 3205 | GT1554 | GT2550 | GTX2100 |
LT1040 | LT1042 | LT1045 | LT1046 | LT1050 |
LT2180 | LTX1040 | LTX1042 | LTX1045 | LTX1046 |
LTX1050 | SLTX1054 | XT1 LT42 | XT1 LT46 | XT3 GSX |