Yamaha EF4500iSE - Inverter Generator, Theory & Diagnostics Manual

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3-98
Yamaha Generator Theory & Diagnostics Guide
7
SPEC
GENERAL SPECIFICATIONS
SPECIFICATIONS
GENERAL SPECIFICATIONS
Unit YG2800i
Model code number 7VU2
Dimensions:
Overall length mm (in) 487 (19.2)
Overall width mm (in) 395 (15.6)
Overall height mm (in) 425 (16.7)
Dry weight kg (lb) 29 (63.9)
Engine:
Engine type 4-stroke OHV forced air cooled
Cylinder arrangement 1
Displacement L (cm 3 ) 0.171 (171)
Bore
×
Stroke mm (in) 66.0
×
50.0 (2.60
×
1.97)
Compression ratio 8.5:1
Rated output 60 Hz · kW (PS)/3,600 r/min 3.3 (4.4)
Rated engine speed r/min 3,550
Operating hours 60 Hz · Hrs
W/no load 24.9
W/rated load 7.7
Fuel Unleaded regular gasoline
Fuel tank capacity L (Imp gal, US gal) 11.2 (2.46, 2.96)
Engine oil capacity L (Imp qt, US qt) 0.6 (0.53, 0.63)
Engine oil grade 4-stroke engine oil API service classification
SE or SF, if not available, SD
Electrical:
Ignition system AC-CDI (Voltage)
Ignition timing BTDC 23 ± 1°
Spark plug type BPR4ES (NGK)
Gap mm (in) 0.7 ~ 0.8 (0.028 ~ 0.031)
Generator:
Type Multi pole rotating field magnet
Initial excitation Permanent magnet
Driving method Direct connection
Rated power factor 1
Frequency variation
Instantaneous Less than 1%
Settling Less than 0.1%
Settling time Less than 1 sec
(5W-30)