2 - 9 ENGINE SPECIFICATIONS SPEC Item Standard Limit Oil ring B T Dimensions (B × T) End gap (installed) Ring side clearance 2.50 × 2.80 mm (0.10 × 0.11 in) 0.20 ~ 0.70 mm (0.008 ~ 0.028 in) 0.060 ~ 0.150 mm (0.0024 ~ 0.0059 in) ---- ---- ---- Crankshaft F C C E D A Crank width “A” Maximum runout “C” Big end side clearance “D” Big end radial clearance “E” Small end free play “F” 74.95 ~ 75.00 mm (2.951 ~ 2.953 in) ---- 0.350 ~ 0.650 mm (0.0138 ~ 0.0256 in) 0.010 ~ 0.025 mm (0.0004 ~ 0.0010 in) 0.16 ~ 0.40 mm (0.0063 ~ 0.0157 in) ---- 0.030 mm (0.0012 in) 1.0 mm (0.04 in) ---- ---- Balancer Balancer drive method Gear ---- Automatic centrifugal clutch Clutch shoe thickness Clutch-in revolution Clutch-stall revolution 1.5 mm (0.06 in) 1,850 ~ 2,250 r/min 3,500 ~ 4,100 r/min 1.0 mm (0.04 in) ---- ---- Transmission Maximum main axle runout Maximum drive axle runout ---- ---- 0.06 mm (0.0024 in) 0.06 mm (0.0024 in) Shifting mechanism Shift mechanism type Shift drum and guide bar ---- Decompression device Device type Auto decomp ---- Air filter oil grade Foam air filter oil or equivalent oil ---- Throttle body Model/manufacturer × quantity Engine idle speed Intake vacuum 44EIS/MIKUNI × 1 1,550 ~ 1,650 r/min 35.0 kPa (263 mmHg, 10.3 inHg) ---- ---- ----