Product Manual

wc_td000739en.fm
42
Technical Data PT2A / PT3A / PT4A
10.3 Engine—PT4A / PT4A(I)
1
Net engine power rating per SAE J1349 and ISO 3046. Actual power output may vary due to
conditions of specific use.
Machine PT4A / PT4A(I)
Engine type 4-stroke, overhead valve,
single cylinder
Engine make Honda
Engine model GX 390
Maximum rated power at rated
speed
1
kW (hp) 8.7 (11.7) @ 3600 rpm
Displacement cm³ (in.³) 389 (23.7)
Spark plug (NGK) BPR 6ES
(DENSO) W20EPR-U
Electrode gap mm (in.) 0.7–0.8
(0.028–0.031)
Operating speed rpm 3500
Valve clearance (cold)
intake:
exhaust:
mm (in.) 0.15 ± 0.02 (.006)
0.20 ± 0.02 (.008)
Air cleaner type Dual element
Engine lubrication oil grade SAE 10W30
Service Class SJ, SL
Engine oil capacity L (qt) 1.1 (1.2)
Fuel type Regular unleaded gasoline
Fuel tank capacity L (qt) 6.1 (6.4)