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ENGINE
427
2016 OFFROAD CATALOG
accessories
body
handlebar
& grips
cables &
levers
engine
fuel &
intake
electrical
& ignition
clutch
drive
bearings
brakes
steering &
suspension
tires
tools &
shop
exhaust
MODEL YEAR
BORE
X
STROKE
BORE
SIZE
TOP
END
KIT
SINGLE
PISTON RING SET PIN CLIP
TOP END
GASKET
KIT
TOP END
BEAR-
ING
YAMAHA (2-STROKE)
CONTINUED
YZ85
02-16 52.5 52.5
103337 767M05250 2067CSA
S288
CW14 W5983 B1012
*Crank case clear-
ance required for
50mm and larger
x
47.8
LT100
All
52
52
101464
2047CD
S288
CW14
B1012
LT100-2
x
52.5
101465
2067CD
LT100-3
45.6
53
101466
2087CD
MX100
53.5
103701
101008
DT100
54
103702
2126CD
YZ100
76-83 50
50
102283
1969CD
S637
CW16
B1016
x
51
102284
2008CD
50
52
103357
2047CD
RT100
90-00 52
52
771M05200 2047CD
S288
CW14
B1012
x
52.5
771M05250 2067CD
45.6
53
771M05300 2087CD
54
102180
2126CD
AT2125
72-73 56
56
236M05600 2205CD
S270
CW16
B1016
AT3125
72-73
x
56.5
236M05650 2224CD
DT125
73-81 50
57
236M05700 2244CD
IT125
80-81
57.5
236M05750 2264CD
MX125
74-76
58
236M05800 2284CD
TZR125
87-92 56
56
101166
2205CD
S270
CW16
B1008
DTR125
88-96
x
56.25
101167
101019
DTR125E
90-96 50.7 56.5
101168
2224CD
TDR125
90-92
56.75
101169
101021
TDR240
88-92
57
101170
2244CD
*Includes Reed
Cutout on piston
*International Bore -
Not available in U.S.
57.25
100668
101023
57.5
100669
2264CD
DT125
75-76 56
56
104155
2205CD
S270
CW16
B1016
AT2125
72-76
x
56.5
104156
2224CD
AT3125
72-76 50.7
57
104157
2244CD
DT125LC
80-91
57.5
112180
2264CD
RD125LC
82-92
DT125Tenere
*Two Reed Holes on
piston
*International Bore -
Not available in U.S.
YZ125
76-82 56
56
435M05600 2205CS
S270
CW16
B1016
x
56.5
435M05650 2224CS
50
57
435M05700 2244CS
57.5
435M05750 2264CS
58
435M05800 2284CS
YZ125
83
56
56
503M05600 2205CS
S270
CW16 W4053 B1016
x
57.5
503M05750 2264CS
50
YZ125
84
56
56.5
512M05650 2224CS
S270
CW16 W4053 B1016
x
57
512M05700 2244CS
50
57.5
512M05750 2264CS
58
512M05800 2284CS
YZ125
85
56
57
521M05700 2244CS
S270
CW16 W5285 B1016
*Power Valve must
be modified for
58mm and larger
x
58
521M05800 2284CS
50