Segway SNARLER ATV 2021 Series - Page 117

ENGINE TOP END
ENGINE TOP END
3-5-7
Item Standard Service Limit
Piston Pin:
Piston Pin O.D. 21.995 ~ 22.000 mm (0.8659" ~ 0.8661") 21.975(0.8652")
Piston Ring:
Installed Gap:
Top Ring
Second Ring
Oil Control Rails
Ring/Groove Clearance:
Top Ring
Second Ring
Piston ring groove width:
Top Ring
Second Ring
Piston ring thickness:
Top Ring
Second Ring
0.20 ~ 0.35 mm (0.0079" ~ 0.0138")
0.35 ~ 0.55 mm (0.0138" ~ 0.0217")
0.20 ~ 0.70 mm (0.0079" ~ 0.0276")
0.020 ~ 0.060 mm (0.0007" ~ 0.0023")
0.020 ~ 0.060 mm (0.0007" ~ 0.0023")
1.22 ~ 1.25 mm (0.0480" ~ 0.0492")
1.22 ~ 1.25 mm (0.0480" ~ 0.0492")
1.17 ~ 1.19 mm (0.0461" ~ 0.0469")
1.17 ~ 1.19 mm (0.0461" ~ 0.0469")
0.5 mm (0.0197")
0.7 mm (0.0276")
0.9 mm (0.0354")
0.12 mm (0.0047")
0.12 mm (0.0047")
1.32 mm (0.0520")
1.32 mm (0.0520")
1.10 mm (0.0433")
1.10 mm (0.0433")
Camshafts:
Cam Lobe height:
Exhaust
Intake
Camshaft journal diameter - All:
Camshaft Journal Bore diameter - All:
Camshaft Oil Clearance:
Camshaft End Play:
Camshaft runout:
Automatic Compression Release:
operating engine speed:
40.08 ± 0.04 mm (1.5780" ± 0.0015")
40.36 ± 0.04 mm (1.5890" ± 0.0015")
22.954 ~ 22.975 mm (0.9036" ~ 0.9045")
23.000 ~ 23.021 mm (0.9055" ~ 0.9063")
0.025 ~ 0.067 mm (0.0009" ~ 0.0026")
0.10 ~ 0.25 mm (0.0039" ~ 0.0098")
TIR 0.02 mm (0.0008") or less
450 ± 50 rpm
39.99 mm (1.5744")
40.27 mm (1.5854")
22.944 mm (0.9033")
23.044 mm (0.9072")
0.1 mm (0.0039")
0.4 mm (0.0157")
TIR 0.1 mm (0.0039")
– – –
Connecting Rod:
Connecting Rod Small End I.D.
Main Journal O.D.
Crankshaft Runout Limit
22.010 ~ 22.023 mm (0.8665" ~ 0.8670")
40.995 ~ 41.005 mm (1.6140" ~ 1.6144")
– – –
22.06 mm (0.8685")
40.97 mm (1.6129")
Less than 0.025 mm
(0.001")
Balance Shaft:
Bearing Journal O.D. 29.980 ~ 29.993 mm (1.1803" ~ 1.1808") 29.92 mm (1.1780")