Yamaha 4TX-AE1, Service Manual

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MAINTENANCE SPECIFICATIONS
SPEC
Head Dia Face Width Seat Width Margin Thickness
MAINTENANCE SPECIFICATIONS
ENGINE
Item Standard Limit
Cylinder head:
Warp limit 0.03 mm
Cylinder:
Bore size
Taper limit
Out of round limit 89.500 89.505 mm 89.6 mm
0.05 mm
0.03 mm
Camshaft:
Drive method
Camshaft cap inside diameter
Camshaft outside diameter
Camshaft-to-cap clearance
Cam dimensions Timing chain (right)
25.000
25.021 mm
24.967 24.980 mm
0.020 0.054 mm
Intake “A”
“B”
“C”
Exhaust “A”
“B”
“C”
Camshaft runout limit
35.95 36.05 mm
27.95 28.05 mm
7.9 8.1 mm
35.95 36.05 mm
27.95 28.05 mm
7.9 8.1 mm
35.85mm
27.85mm
35.85 mm
27.85 mm
0.03 mm
Cam chain:
Cam chain type / No. of links
Cam chain adjustment method 82RH2015 / 138
Automatic
Valve, valve seat, valve guide:
Valve clearance (cold) IN
EX
Valve dimensions:
0.15 0.20 mm
0.25 0.30 mm
“A” head diameter IN
EX 25.9 26.1 mm
27.9 28.1 mm