XT Series XT650

No choking. No priming. No kidding.

On XT Series™ engines for walk-behind mowers, professional-grade features come standard. You get smooth, reliable starts and lawns that look great with every cut.

  • Just pull and go - with Smart-Choke™ technology, there's no choking, no priming, no flooded engine
  • Enjoy effortless, no-prime starts thanks to our Smart-Choke™ and Easy-Pull™ technology
  • Easy pours and less spilling with Accu-Fill® fuel tank's 45% larger angled fuel neck
  • Consistent-Cut™ technology maintains engine speed for a cleaner turf cut, even in tough mowing conditions
  • Lightweight design
Owner's manual
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Service manual
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Engine Type

Four-cycle, single-cylinder, air-cooled, vertical shaft, gasoline, OHV, with cast iron liner.

Model XT650
Displacement cm3 (in3) 149 (9.1)
Bore mm (in) 65 (2.6)
Stroke mm (in) 45 (1.8)
Gross Torque[[1]] Nm (lb-ft) 8.8 (6.5)
Compression Ratio 9.2:1
Dry Weight kg (lbs) 10.8 (23.8)
Oil Capacity L (US qt) 0.59 (0.625)
Lubrication Splash
Dimensions LxWxH mm (in) 366 x 356 x 267
(14.4 x 14 x 10.5)
Backpressure Limit[[2]] 40
Certified Power[[3]] Nm (ft lbs) 8.3 (6.1)
Certified rpm rpm 2800
Emissions Compliance
  • CARB Phase III
  • EU Stage V
  • China Phase II
  • EPA Phase III
Engine Type Consumer

Length is front of blower housing to back of blower housing. Width is air cleaner cover to muffler guard. Height is mounting surface to grass screen.

1 Power (hp) and Torque (ft lbs) specifications for Kohler general purpose engines are rated pursuant to Society of Automotive Engineers (SAE) J1940 based on gross output testing performed according to SAE J1995 without the air cleaner and muffler. Actual engine power and torque are lower and affected by accessories (air cleaner, exhaust, charging, cooling, fuel pump, etc.), application, engine speed, ambient operating conditions (temperature, humidity and altitude) and other factors. This J1940 / J1995 rating provides consistent measurement to customers who may want to control the intake and exhaust features of the engine. For more information, contact Kohler Co. Engine Engineering Department. Kohler Co. reserves the right to change product specifications, designs and standard equipment without notice and without incurring obligation.

2 Inches of H20 @ 3600 RPM WOT

3 J1995 power and torque certified by 3rd Party Witness

Equipment Types

This engine powers the following equipment

  • Tiller
  • Pressure Washer
  • String Trimmer
  • Walk-Behind Mower

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