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Mitsubishi K21 Service Manual

Mitsubishi K21
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Note: Fuel
Gasoline: Use unleaded regular gasoline with an octane
rating of 91 or more.
LPG: Use a fuel of 30P or more in cold seasons. In ambient
temperature of -5°C (23°F) or less, use a 100P fuel.
Engine type K25
Engine control system Electric controlled specifications
Fuel specification Gasoline LPG Combined
Total displacement (cc) 2,488
Shape of combustion chamber Bathtub
Valve mechanism OHV
Bore x stroke mm (in) 89 x 100 (3.50 x 3.94)
Compression ratio 8.7
Compression pressure [kPa (bar, kg/cm
2
, psi)/rpm]
1,510 (15.1, 15.4, 219)
Engine speed control system Engine Control System, electric controlled throttle
Fuel in use (Note) Unleaded regular
gasoline
At 20P At 20P
Valve opening/closing timing
(degree)
Intake open (ATDC) 4
Intake close (ABDC) 40
Exhaust open (BBDC) 36
Exhaust close (ATDC) 0
Valve clearance mm (in) Intake (when engine is hot) 0.38 (0.0150)
Exhaust (when engine is hot) 0.38 (0.0150)
Firing order 1-3-4-2
Ignition timing (idling) degree (BTDC°/rpm) 0±2/700
On board idle speed (rpm) ATM 700±50
MTM 700±50
PTO system Silent chain-driven/side PTO
Engine oil (originally fitted) Specification 10W-30 (Class SL)
Amount l (US qt, Imp qt) 3.8 (4, 3-3/8) (including oil filter)
GI-13
MAIN SPECIFICATIONS

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Mitsubishi K21 Specifications

General IconGeneral
BrandMitsubishi
ModelK21
CategoryEngine
LanguageEnglish

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