Honda GXV610 Specifications
| Engine Model: Honda GXV610 |
| Engine Type: 4-cycle V-twin cylinder OHV air-cooled gasoline |
| Total Displacement: 37.5 cu.in (614 cc) |
| Rated Engine Power: 18 Hp (13.4 kW) at 3600 rpm |
| Carburetor Type: Horizontal with butterfly valve |
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Engine Model .............. Honda GXV-610
Engine Type .............. 4-cycle overhead valve V-twin gasoline engine
Number of Cylinders .............. 2
Displacement, cu.in (cc) .............. 37.5 (614)
Cylinder Bore, in (mm) .............. 3.03 (77.0)
Piston Stroke, in (mm) .............. 2.61 (66.0)
Rated Engine Power, hp (kW) .............. 18.0 (13.4)
Rated Engine Speed, rpm .............. 3600
Maximum Torque, Nm (ft-lbs) .............. 43.1 (31.7)
Torque Speed, rpm .............. 2500
Compression Ratio .............. 8.3:1
Valve Arrangement .............. OHV
PTO Shaft Rotation .............. Counterclockwise (from PTO side)
Lubrication System .............. Forced
Air Cleaner .............. Dual element
Cooling System .............. Forced air
Ignition System .............. Transistorized magneto
Stopping System .............. Primary circuit ground
Starting System .............. Recoil or electric starter
Fuel System Type .............. Carburetor
Carburetor Type .............. Horizontal, butterfly valve
Governor Type .............. Centrifugal
Fuel Consumption, lb/Hph (g/kWh) .............. 0.51 (313)
Fuel Type .............. Gasoline (86 or higher)
Overall Length, in (mm) .............. 18.1 (459)
Overall Width, in (mm) .............. 18.0 (457)
Overall Height, in (mm) .............. 17.0 (431)
Dry Weight, lbs (kg) .............. 95.1 (43.0)
Operating Weight, lbs (kg) .............. 99 (45.1)
Cylinder Bore Inside Diameter (Std), in (mm) .............. 3.0314-3.0320 (77.000-77.015)
Cylinder Bore Inside Diameter (Wear Limit), in (mm) .............. 3.038 (77.170)
Connecting Rod Small End Inside Diameter (Std), in (mm) .............. 0.7089 (18.005)
Connecting Rod Small End Inside Diameter (Wear Limit), in (mm) .............. 0.711 (18.07)
Connecting Rod Big End Oil Clearance, in (mm) .............. 0.0012-0.0022 (0.030-0.056)
Crankshaft Journal Outside Diameter (Main), in (mm) .............. 1.4961 (38.000)
Crankshaft Journal Outside Diameter (Pin), in (mm) .............. 1.5746 (39.995)
Cylinder Head (Max Out of Flatness), in (mm) .............. 0.004 (0.10)
Intake Valve Clearance, in (mm) .............. 0.006±0.001 (0.15±0.02)
Exhaust Valve Clearance, in (mm) .............. 0.008±0.001 (0.20±0.02)
Intake Valve Stem Outside Diameter (Std), in (mm) .............. 0.2594 (6.59)
Intake Valve Stem Outside Diameter (Wear Limit), in (mm) .............. 0.254 (6.44)
Exhaust Valve Stem Outside Diameter (Std), in (mm) .............. 0.2579 (6.55)
Exhaust Valve Stem Outside Diameter (Wear Limit), in (mm) .............. 0.252 (6.40)
Valve Guide Inside Diameter (Intake/Exhaust), in (mm) .............. 0.2598 (6.60)
Intake Valve Guide To Stem Clearance, in (mm) .............. 0.0004-0.0016 (0.010-0.040)
Exhaust Valve Guide To Stem Clearance, in (mm) .............. 0.0020-0.0031 (0.050-0.080)
Valve Seat Width (Intake/Exhaust), in (mm) .............. 0.04 (1.10)
Valve Spring Free Length, in (mm) .............. 1.54 (39.00)
Valve Lifter Shaft Outside Diameter, in (mm) .............. 0.2362 (6.00)
Valve Lifter Inside Diameter, in (mm) .............. 0.2366 (6.01)
Cam Height (Std), in (mm) .............. 1.1758 (29.865)
Cam Height (Wear Limit), in (mm) .............. 1.16 (29.50)
Camshaft Journal Outside Diameter, in (mm) .............. 0.6687 (16.985)
Piston Pin Bore Inside Diameter (Std), in (mm) .............. 0.7087-0.7090 (18.002-18.008)
Piston Pin Bore Inside Diameter (Wear Limit), in (mm) .............. 0.7103 (18.042)
Piston Skirt Outside Diameter, in (mm) .............. 3.0309 (76.985)
Piston to Cylinder Bore Clearance, in (mm) .............. 0.0006-0.0020 (0.015-0.052)
Piston Pin Outside Diameter (Std), in (mm) .............. 0.7084-0.7087 (17.994-18.000)
Piston Pin Outside Diameter (Wear Limit), in (mm) .............. 0.7068 (17.954)
Top Ring Width, in (mm) .............. 0.0783 (1.99)
Second Ring Width, in (mm) .............. 0.0783 (1.99)
Top Ring Groove Side Clearance, in (mm) .............. 0.0012-0.0024 (0.030-0.060)
Second Ring Groove Side Clearance, in (mm) .............. 0.0012-0.0024 (0.030-0.060)
Top Ring End Gap, in (mm) .............. 0.008-0.016 (0.20-0.40)
Second Ring End Gap, in (mm) .............. 0.008-0.016 (0.20-0.40)
Ring End Gap (Wear Limit), in (mm) .............. 0.04 (1.00)
Cylinder Bore Inside Diameter (Max), in (mm) .............. 3.038 (77.170)
Cylinder Compression, psi (kPa) .............. 85-114 (600-800)
Cylinder Head (Max Out of Flatness), in (mm) .............. 0.004 (0.10)
Intake Valve Clearance, in (mm) .............. 0.006 (0.15)
Exhaust Valve Clearance, in (mm) .............. 0.008 (0.20)
Engine Oil Type (Summer) .............. SAE 10W-30
Engine Oil Type (Winter) .............. SAE 5W-30
API Service Classifications .............. SG or SF
Oil Capacity (with Filter), qts (L) .............. 2.3 (2.2)
Spark Plug Type .............. NGK ZGR5A or Denso J16CR-U
Spark Plug Gap, in (mm) .............. 0.028-0.032 (0.70-0.80)
Module Air Gap, in (mm) .............. 0.008-0.024 (0.20-0.60)
Ignition Timing, deg .............. 20 BTDC
Oil Filter Part Number .............. 15400-ZJ1-004
Air Filter Part Number .............. 17210-ZJ1-841
Fuel Filter Part Number .............. 16910-ZE8-015
Main Jet .............. #108
Idle Fuel .............. 2-5/8 turns out
Float Height, in (mm) .............. 0.55 (14.0)
Low Idle Speed, rpm .............. 1400±150
High Idle Speed, rpm .............. 3400±150
Check Engine Oil Level .............. Every 10 hours
Clean Air Filter Element .............. Every 50 hours
Change Engine Oil .............. Every 100 hours
Check and Adjust Spark Plug .............. Every 100 hours
Clean Fuel Filter .............. Every 100 hours
Replace Engine Oil Filter .............. Every 200 hours
Check and Adjust Idle Speed .............. Every 300 hours
Check Carburetor Adjustments .............. Every 300 hours
Replace Spark Plug .............. Every 300 hours
Replace Fuel Filter .............. Every 300 hours
Replace Air Filter Element .............. Every 300 hours
Check and Adjust Valve Clearance .............. Every 300 hours
Clean Combustion Chamber .............. Every 500 hours
Clean Fuel Line .............. Every 500 hours
Cylinder Head Bolt (M10x1.25), Nm (ft-lb) .............. 34 (25)
Cylinder Head Cover Bolt (M6x1.0), Nm (ft-lb) .............. 9 (6.5)
Cylinder Head Stud Bolt (M8x1.25), Nm (ft-lb) .............. 18 (13)
Connecting Rod Bolt (M6x1.0), Nm (ft-lb) .............. 12 (9)
Flywheel Nut (M20x1.5), Nm (ft-lb) .............. 196 (145)
Oil Drain Bolt (M14x1.5), Nm (ft-lb) .............. 39 (29)
Oil Pump Cover Bolt (M6x1.0), Nm (ft-lb) .............. 10 (7)
Fuel Pump Screw (M5x0.8), Nm (ft-lb) .............. 4 (2.9)
Oil Filter Holder (M20x1.5), Nm (ft-lb) .............. 18 (13)
Governor Arm Nut (M6x1.0), Nm (ft-lb) .............. 11 (8)
Carburetor Bolt (M6x1.0), Nm (ft-lb) .............. 9 (6.5)
Spark Plug (M14x1.25), Nm (ft-lb) .............. 18 (13)
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