Suzuki LT-A400F - Repair Instructions; Service Data; Specifications; Service Data (LT-A400

Service Data: 0C-1
General Info rmation
Service Data
Specifications
Service Data (LT-A400/F)
B827H10307001
Valve + Valve Guide
Unit: mm (in)
Camshaft + Cylinder Head
Unit: mm (in)
Cylinder + Piston + Piston Ring
Unit: mm (in)
Item Standard Limit
Valve diam.
IN. 30.6 (1.20) —
EX. 27.0 (1.06) —
Valve clearance (when cold)
IN. 0.05 – 0.10 (0.002 – 0.004) —
EX. 0.22 – 0.27 (0.009 – 0.011) —
Valve guide to valve stem clearance
IN. 0.010 – 0.037 (0.0004 – 0.0015) —
EX. 0.030 – 0.057 (0.0012 – 0.0022) —
Valve guide I.D. IN. & EX. 5.000 – 5.012 (0.1969 – 0.1973) —
Valve stem O.D.
IN. 4.975 – 4.990 (0.1959 – 0.1965) —
EX. 4.955 – 4.970 (0.1951 – 0.1957) —
Valve stem deflection IN. & EX. — 0.35 (0.014)
Valve stem runout IN. & EX. — 0.05 (0.002)
Valve head thickness IN. & EX. — 0.5 (0.02)
Valve stem end length IN. & EX. — 2.3 (0.09)
Valve seat width IN. & EX. 0.9 – 1.1 (0.035 – 0.043) —
Valve head radial runout IN. & EX. — 0.03 (0.001)
Valve spring free length IN. & EX. — 40.9 (1.61)
Valve spring tension IN. & EX.
Approx. 196 N (20.0 kgf, 44.1 lbs) at length
31.5 mm (1.24 in)
—
Item Standard Limit
Cam height IN. & EX. 33.130 – 33.170 (1.3043 – 1.3059) 32.830 (1.2925)
Camshaft journal oil clearance
φ 22 0.032 – 0.066 (0.0013 – 0.0026) 0.150 (0.0059)
φ 17.5 0.028 – 0.059 (0.0011 – 0.0023) 0.150 (0.0059)
Camshaft journal holder I.D.
φ 22 22.012 – 22.025 (0.8666 – 0.8671) —
φ 17.5 17.512 – 17.525 (0.6894 – 0.6900) —
Camshaft journal O.D.
φ 22 21.959 – 21.980 (0.8645 – 0.8654) —
φ 17.5 17.466 – 17.484 (0.6876 – 0.6883) —
Camshaft runout — 0.10 (0.004)
Rocker arm I.D. IN. & EX. 12.000 – 12.018 (0.4724 – 0.4731) —
Rocker arm shaft O.D. IN. & EX. 11.973 – 11.984 (0.4714 – 0.4718) —
Cylinder head distortion — 0.05 (0.002)
Cylinder head cover distortion — 0.05 (0.002)
Item Standard Limit
Compression pressure
(Automatic-decomp. actuated)
Approx. 1 000 kPa (10.0 kgf/cm
2
, 142 psi) —
Piston to cylinder clearance 0.065 – 0.075 (0.0026 – 0.0030) 0.120 (0.0047)
Cylinder bore 82.000 – 82.015 (3.2283 – 3.2289) 82.070 (3.2311)
Piston diam.
81.930 – 81.945 (3.2256 – 3.2262)
Measure at 15 mm (0.6 in) from the skirt end.
81.880 (3.2236)
Cylinder distortion — 0.05 (0.002)
Piston ring free end gap
1st R Approx. 8.9 (0.35) 7.1 (0.28)
2nd R Approx. 10.4 (0.41) 8.3 (0.33)
Piston ring end gap
1st 0.15 – 0.27 (0.006 – 0.011) 0.50 (0.020)
2nd 0.15 – 0.27 (0.006 – 0.011) 0.50 (0.020)