• TM300‑S,MY SHOP,TM300‑S
  • TM300‑S,MY SHOP,TM300‑S
  • TM300‑S,MY SHOP,TM300‑S
  • TM300‑S,MY SHOP,TM300‑S
  • TM300‑S,LITTLEDONKEY-ENGINE,TM300‑S
  • TM300‑S,MY SHOP,TM300‑S
  • TM300‑S,MY SHOP,TM300‑S
  • TM300‑S,MY SHOP,TM300‑S
  • TM300‑S,MY SHOP,TM300‑S
  • TM300‑S,LITTLEDONKEY-ENGINE,TM300‑S

TM300‑S

No.175FMN‑S
Single‑cylinder, 4‑stroke, air‑cooled, inclined‑mount, built‑in oil‑cooled, OHC overhead camshaft
Main Technical Specifications
SN Parameter Value
1 Engine Model 175FMN‑S
2 Engine Common Name TM300‑S‑V2 (Four‑Valve, Built‑in Balance Shaft)
3 Engine Type Single‑cylinder,4‑stroke,air‑cooled,inclined‑mount,built‑in oil‑cooled,OHC overhead camshaft
4 Displacement 278.3 ml
5 Net Weight(oil included) 33 kg
6 Max. Power 18 kW /8000 r/min
7 Max. Torque 23 N·m /6500 r/min
8 Compression Ratio 9.5:1
9 Bore × Stroke 75 mm ×63 mm
10 Ignition Method CDI
11 Lubrication Mode Pressure and Splash
12 Min. Fuel Consumption ≤354 g/kW·h
13 Starting Method Electric / Kick start
14 Clutch Manual Wet Multi‑Plate
15 Gearshift Constant‑mesh two‑stage transmission, 5‑speed or 6‑speed optional
16 Package Size 420 ×370 ×500
17 Package Weight  
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  • TM300‑S,MY SHOP,TM300‑S
  • TM300‑S,MY SHOP,TM300‑S
  • TM300‑S,MY SHOP,TM300‑S
  • TM300‑S,MY SHOP,TM300‑S
  • TM300‑S,LITTLEDONKEY-ENGINE,TM300‑S

Description

Main Performance Features
SN Items Description
1 Chain Drive 7‑piece silent toothed timing‑chain, stable valve‑train with lower noise.
2 Built‑in oil‑cooled cylinder‑head patent design: Reduce cylinder‑head temperature by around 20℃.
3 Hot-assesmbled crankcase Hot‑assembled crank‑connecting‑rod assembly with locking‑pin structure, suppress crankshaft axial‑play noise.
4 Roller rocker‑arm assembly Ball‑bearing cam journal to minimize friction & power loss.
5 Light‑weight piston with back‑side cooling:  Avoid piston crown breakdown and ring seizure.
6 Built‑in balance‑shaft assembly:  Counteracts primary inertial‑force, reduces engine vibration and improves riding comfort.
7 Dual DLC+PVD high‑performance piston‑rings:  DLC+PVD piston‑rings: Excellent wear‑resistance, delay oil‑burning failure.
8 High‑torque starter motor:  High‑power starter motor, braking torque 2.2 N·m for easy cranking.
9 Reinforced crankshaft bearing & shortened connecting rod: Thickened crankshaft bearings, shortened connecting‑rod, suppress engine knocking.
10 Optimized Camshaft Profile Optimized camshaft profile for higher power & torque, superior take‑off and overtaking acceleration.
11 High-Temperature Resistant Valve Material 751‑series high‑temperature exhaust valve material.
12 Enlarged Shift Drum Enlarged shift‑drum for smoother gear‑shifting.
13 Reinforced Main & Counter Shaft Reinforced main / counter shaft and gear sets for robust transmission durability.
14 Crankshaft Offset Technology Crankshaft offset design: Reduce piston side‑pressure, maximize combustion energy utilization.

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