The Toyosha S126 is a 1.3 l (1,263 cc, 77.07 cu-in) two-cylinder liquid-cooled 4-stroke internal combustion diesel engine, manufactured by Japanese company Hinomoto under the Toyosha brand.
This engine has two cylinders, overhead valves (2 per cylinder), three main bearings, flyweight governor and Kiki fuel injection pump. The S126 engine uses Hitachi S12-61 electric starter, Hitachi L115-5B (12V-15A) alternator and Hitachi TRIZ-34 voltage regulator.
A 92 mm (3.62 in) cylinder bore and 95 mm (3.74 in) piston stroke give the motor a total of 1,263 cc, (77.07 cu-in) of displacement. Compression ratio rating is 23:1. The Toyosha S126 engine produced 23.0 HP (17.1 kW) of maximum output.
|Type||4-stroke, OHV, two cylinders|
|Displacement||1.3 L, 1,263 cm3 (77.1 cu-in)|
|Max. horsepower||23.0 HP (17.1 kW)|
|Max. torque (crank PTO)||–|
|Fuel injection pump||Kiki|
|Starting system||Hitachi S12-61 electric starter|
|Fuel used||Diesel fuel|
|Maximum speed||2,600 ± 150 rpm|
|Idle speed||750 ± 150 rpm|
|Intake valve||0.30 mm (0.012)|
|Exhaust valve||0.35 mm (0.014)|
|Oil type||Diesel oil (API Service Classification CC or CD)|
|Recommended oil||SAE 10W-30|
With filter change: 4.6 l (5.0 qt.)
Without filter change: 4.0 l (4.2 qt.)
|Alterator||Hitachi L115-5B (12V-15A)|
|Voltage regulator||Hitachi TRIZ-34|
|Fuel pump||Kiki NP-PE|
|Injection timing||20° B.T.D.C.|
|Fuel nozzle pressure||1710-1840 psi|
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.
NOT complaining, just FYI: You have a typo under electrical; in place of “alternator” you have “Alter-ator.” The hyphen (-) indicates the missing letter “n”.
Thank you for providing all this information.