Honda GX200T2

Honda GX200 T2/UT2The Honda GX200 T2/UT2 is a 196 cc (12.0 cu-in) single-cylinder inclined by 25° air-cooled 4-stroke internal combustion small gasoline engine with horizontal shaft manufactured by Honda Motor Company for general-purpose applications, such as commercial lawn and garden equipment, tillers and cultivators, generators, construction and industrial equipment, agricultural equipment and water pumps.

The Honda GX200 T2/UT2 engine has an OHV (overhead valve) design; high compression ratio for better fuel efficiency; horizontal type carburetor with butterfly valve; mechanical centrifugal governor; forced splash lubrication system; heavy-duty recoil or recoil and electric starter and C.D.I. (Capacitor Discharge Ignition) type magneto ignition. The engine can be equipped with a dual silent type or a cyclone-type air cleaner.

The cylinder bore is 68.0 mm (2.7 in) and the piston stroke is 54.0 mm (2.1 in), compression ratio rating is 8.5:1. The Honda GX200T2 engine produced 5.6 HP (4.1 kW) at 3,600 rpm of maximum horsepower and 5.0 HP (3.7 kW) at 3,600 rpm of continuous rated power. Maximum torque is 12.4 N·m (1.3 kg·m, 9.0 ft·lb) at 2,500 rpm.

General information

Engine Specifications
Model GX200 T2 / UT2
Type 4-stroke, OHV, single cylinder inclined by 25°
Displacement 196 cm 3 (12.0 cu-in)
Max. horsepower 5.6 HP (4.1 kW) at 3,600 rpm
Max. torque (crank PTO) 12.4 N·m (1.3 kg·m, 9.0 ft·lb) at 2,500 rpm
Carburetor Horizontal type, butterfly valve
Cooling system Forced-air
Ignition system C.D.I. (Capacitor Discharge Ignition)
Lubricating system Forced splash
Starting system Recoil oa Recoil and Starter motor
Stoping system Ignition primary circuit ground
Fuel used Unleaded gasoline (octane number 86 or higher)
Fuel tank capacity 3.1 L (0.82 US Gal, 0.68 Imp Gal.)
PTO shaft rotation Counterclockwise (from PTO shaft side)

Cylinder Block and Head

The Honda GX200T2 has cast iron cylinder sleeve, ball bearing supported forged steel crankshaft, improved piston design. The piston has two compression rings and one oil ring. Precision camshaft design offers precise valve timing and optimal valve overlap for better fuel efficiency. Cylinder bore and piston stroke are 68.0 mm (2.7 in) and 54.0 mm (2.1 in), respectively. Compression ratio rating is 8.5:1

Cylinder block
Compression ratio: 8.5:1
Bore x Stroke 68 X 54 mm (2.7 x 2.1 in)
Sleeve internal diameter 68.00 mm (2.68 in)
Piston skirt outer diameter 67.985 mm (2.6766 in)
Number of piston rings (compression / oil): 2 / 1
Ring side clearance Top 0.035-0.070 mm (0.0014-0.0028 in)
Second 0.045-0.080 mm (0.0018-0.0032 in)
Ring end gap Top 0.20-0.35 mm (0.0079-0.0138 in)
Second 0.35-0.50 mm (0.0138-0.0197 in)
Oil (side rail) 0.2-0.7 mm (0.01-0.03 in)
Ring width Top 0.950-0.970 mm (0.0374-0.0382 in)
Second 0.940-0.960 mm (0.0370-0.0378 in)
Connecting rod small end ID 18.005 mm (0.7087 in)
Connecting rod big end ID 30.02 mm (1.182 in)
Piston pin outer diameter 13.0 mm (0.51 in)
Crankshaft crank pin outer diameter 29.98 mm (1.180 in)
Cylinder Head
Warpage (limit) 0.10 mm (0.004 in)
Valve Arrangement: OHV
Valves: 2
Stem outer diameter (standard): INTAKE 5.468-5.480 mm (0.2153-0.2157 in)
EXHAUST 5.425-5.440 mm (0.2136-0.2142 in)
Valve spring free length: 30.5 mm (1.20 in)
Camshaft outer diameter: 13.984 mm (0.5506 in)
Cam height: INTAKE 27.500-27.900 mm (1.0827-1.0984 in)
EXHAUST 27.547-27.947 mm (1.0845-1.1003 in)

Tightening torque specs

Tightening torque specs
Connecting rod bolt 12 Nm; 1.2 kg·m; 9 ft·lb
Cylinder head bolt 24 Nm; 2.4 kg·m; 17 ft·lb
Flywheel nut 75 Nm; 7.5 kg·m; 54 ft·lb
Rocker arm pivot adjusting nut 10 Nm; 1.0 kg·m; 7 ft·lb
Rocker arm pivot bolt 24 Nm; 2.4 kg·m; 17 ft·lb
Crankcase cover bolt 24 Nm; 2.4 kg·m; 17 ft·lb
Oil level switch joint nut 10 Nm; 1.0 kg·m; 7 ft·lb

Service Information

Maximum speed 3,900 ± 100 rpm
Idle speed 1,400 ± 150 rpm
Cylinder compression 3.6 kg/cm2 (51 psi) at 600 rpm
Valve clearance
Intake valve clearance 0.15±0.02 mm (0.006±0.001 in)
Exhaust valve clearance 0.20±0.02 mm (0.008±0.001 in)
Oil system
Oil type Honda 4-stroke or an equivalent (SJ or higher)
Recommended oil SAE 10W-30, 10W-40
Oil capacity 0.60 L (0.63 US. qt, 0.53 Imp. qt.)
Main jet BE59L, BE59N, BE59U: #75
BE74Y: #78
Float height 13.7 mm (0.54 in)
Pilot screw opening BE59L, BE59N: 1-7/8 turns out
BE59U: 2-1/4 turns out
BE74Y: 2-3/4 turns out
Ignition system
Ignition timing 20° B.T.D.C. (Fixed)
Spark plug NGK: BPR6ES
Spark plug gap 0.7-0.8 mm (0.028-0.031 in)
Primary ignition coil resistance 0.6-0.9 Ω
Secondary ignition coil resistance 5.6-6.9 kΩ
Ignition coil air gap 0.4 ± 0.2 (0.016 ± 0.008)
Starter motor
Brush length 11.0 mm (0.43 in)
Mica depth 1.6 mm (0.06 in)
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We try to use verified sources and official documentation, however, differences between sources or errors in entering information may occur. We do not provide advice on technical issues related to the engines operation or repair. We do not recommend using provided information for engines repairing engines or spare parts ordering, use only official service manuals and spare-parts catalogs.


  1. Great info but I have one question not covered. I accidently jarred the camshaft gear free of the crankshaft gear while installing new piston and I’m not sure if I got it back in exactly the right place. I found the timing mark on camshaft but all I could find on crankshaft is a tiny 0 on one tooth. Does this crankshaft tooth fit in the timing mark groove on the camshaft. Any help is greatly appreciated.

  2. Had a conrod failure. The gx200 and the gx200 t2 have different crankshafts, but do they use the same conrod? Confused as found 13200-zot-305 that says for t2

  3. Good day I’m trim to get a honda small engine number explained, I’m trying to get a replacement engine GX200, I’m wondering if I can get this number defined pls!
    GX200 UT3 SH Q4
    It would be greatly appreciated

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