The 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
| Engine | |
| 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.) |
| Carburetor | |
| 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 DENSO: W20EPR-U |
| 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) |
Author:
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.
It must be something like that:
Yes
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
ITC brand electrical industrial plug and sockets.
I just purchased a GX200 Stock Crankshaft, but need to know the snout bolt size requirement?
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