Suzuki VLR1800 Service Manual

Engine Mechanical: 1D-96
Cylinder + Piston + Piston Ring
Unit: mm (in)
Conrod + Crankshaft
Unit: mm (in)
Item Standard Limit
Compression pressure
(Automatic decomp. actuated)
1 300 – 1 800 kPa (13 – 18 kgf/cm
2
, 185 – 256 psi)
800 kPa
(8 kgf/cm
2
, 114 psi)
Compression pressure difference —
200 kPa
(2 kgf/cm
2
, 28 psi)
Piston-to-cylinder clearance 0.025 – 0.040 (0.0010 – 0.0016) 0.120 (0.0047)
Cylinder bore 112.000 – 112.015 (4.4094 – 4.4100) Nicks or Scratches
Piston diam.
111.968 – 111.983 (4.4081 – 4.4088)
Measure at 10 mm (0.4 in) from the skirt end.
111.880 (4.4047)
Cylinder distortion — 0.05 (0.002)
Piston ring free end gap
1st Approx. 15.7 (0.62) 12.6 (0.50)
2nd Approx. 14.5 (0.57) 11.6 (0.46)
Piston ring end gap
1st 0.10 – 0.25 (0.004 – 0.010) 0.5 (0.020)
2nd 0.10 – 0.25 (0.004 – 0.010) 0.5 (0.020)
Piston ring-to-groove clearance
1st — 0.180 (0.0071)
2nd — 0.150 (0.0059)
Piston ring groove width
1st
0.93 – 0.95 (0.0366 – 0.0374) —
1.55 – 1.57 (0.0610 – 0.0618) —
2nd 1.21 – 1.23 (0.0476 – 0.0484) —
Oil 2.51 – 2.53 (0.0988 – 0.0996)
Piston ring thickness
1st
0.86 – 0.91 (0.034 – 0.036) —
1.38 – 1.40 (0.054 – 0.055)
2nd 1.17 – 1.19 (0.046 – 0.047) —
Piston pin bore I.D. 23.002 – 23.008 (0.9056 – 0.9058) 23.030 (0.9067)
Piston pin O.D. 22.995 – 23.000 (0.9053 – 0.9055) 22.980 (0.9047)
Item Standard Limit
Conrod small end I.D. 23.010 – 23.018 (0.9059 – 0.9062) 23.040 (0.9071)
Conrod big end side clearance 0.100 – 0.200 (0.0039 – 0.0078) 0.30 (0.012)
Conrod big end width 23.95 – 24.00 (0.943 – 0.945) —
Crank pin width 24.10 – 24.15 (0.949 – 0.951) —
Conrod big end oil clearance 0.032 – 0.056 (0.0013 – 0.0022) 0.080 (0.0031)
Crank pin O.D. 54.976 – 55.000 (2.1644 – 2.1654) —
Crankshaft journal oil clearance 0.010 – 0.028 (0.0004 – 0.0011) 0.080 (0.0031)
Crankshaft journal O.D. 54.982 – 55.000 (2.1646 – 2.1654) —
Crankshaft thrust bearing thickness 2.250 – 2.550 (0.0886 – 0.1004) —
Crankshaft thrust clearance 0.100 – 0.200 (0.0039 – 0.0078) —
Crankshaft runout — 0.05 (0.002)

Suzuki VLR1800 Specifications

General

Manufacturer	Suzuki
Model	VLR1800
Compression Ratio	10.5:1
Fuel System	Fuel injection
Starter	Electric
Transmission	5-speed
Category	Cruiser
Displacement	1783 cc
Ignition	Electronic ignition (Transistorized)
Final Drive	Shaft
Front Suspension	Telescopic, coil spring, oil damped
Rear Suspension	Link type, coil spring, oil damped
Rear Brakes	Single disc
Ground Clearance	140 mm
Seat Height	705 mm