x
X X
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762
EXHAUST
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PROMOTIONAL
REFERENCE
INDEX
All kits come with pistons, rings and circlips.
Wrist Pin is included, except when noted.
For replacement ring pricing, see page 704Continued on the next page
Application
Bore x
Stroke mm
Disp.
(cc)
Bore
Size mm Sizes In.
WPS#
List
Repl. Ring
Set
Repl. Circlips
Wrist Pin
Top End
Bearing
YAMAHA 2 CYCLE (CONT’D...)
250YZ,G,H,J 80-82; IT250, ‘81-82
70 x 64
246 70
STD
452PS 162.00
2756CD Circlips CW-18 IT250
81-82
70.5
0.020
2776CD Wrist pin S-343 B1003
71
0.040
452P4 $162.00
2795CD
YZ250
80-81
71.5
0.060
452P6 182.00
2815CD
B1003
72
0.080
452P8 182.00
2835CD
YZ250 82
B1014
IT250, ‘83 PRO-LITE
68 x 68
246.8 68
STD
515PS $162.00
2677CD Circlips CW-18 B1014
68.5
0.020
515P2 162.00
2697CD Wrist pin S-511
69
0.040
515P4 162.00
2717CD
YZ250, ‘83-87 PRO-LITE
68 x 68
246.8 68
STD
560PS 162.00
2677CD Circlips CW-18 B1014
Power Valve must be modified
68.5
0.020
560P2 162.00
2697CD Wrist pin S-511
for .040 and larger
69
0.040
560P4 162.00
2717CD
69.5
0.060
560P6 182.00
2736CD
70
0.080
560P8 182.00
2756CD
YZ250,WR250 ‘88-91
68 x 68
246.8 68
STD
605PS 162.00
2677CD Circlips CW-18 B1014
PRO-LITE
68.5
0.020
605P2 162.00
2697CD Wrist pin S-508
Power Valve must be modified for
69
0.040
605P4 162.00
2717CD
.040 and larger. 91 model is
69.25 0.050
2727CD
Ceramic Composite.
69.5
0.060
605P6 $182.00
2736CD
Cylinder sleeving for oversizes
70
0.080
605P8 182.00
2756CD
YZ250, ‘92-98;WR250, ‘92-98 PRO-LITE
68 x 68
246.8 68
STD
677PS 162.00
2677CD Circlips CW-18 B1014
Cylinder sleeving required for oversizes. Double ring
68.5
0.020
677P2 162.00
2697CD Wrist pin S-508
69
0.040
677P4 162.00
2717CD
70
0.080
677P8 182.00
2756CD
YZ250,’92-98 PRO-LITE,
68 x 68
246.8 68
STD
736PS 162.00
2677CS Circlips CW-18 B1014
Cylinder sleeving required for oversizes. Single ring
Wrist pin S-508
YZ250, ‘99-16 PRO-LITE
66.4 x 72 249 66.4
STD
804PS $152.00
2614CD Circlips CW-18 B1003
YZ250X, 16
67
804P2 152.00
2638CD Wrist pin S-508
Ceramic Composite, Cylinder sleeving required for oversizes
67.5
804P4 152.00
2658CD
68.5
0.082
804P8 182.00
2697CD
YZ250, ‘02-16,YZ250X ‘16
66.4 x 72 249 66.4
STD
808PS 192.00
2614CS Circlips CW-18 B1003
Single ring, Electra coated
Wrist pin S-508
400 DT, MX ‘75-78
85 x 70
397 85
STD
3347TD Circlips CW-18 B1003
Reed Cutaway
85.5
0.020
232P2 $172.00
3366TD Wrist pin S-277
86
0.040
232P4 172.00
3386TD
86.5
0.060
3405TD
YZ250, ‘99-14 (300cc Big Bore)
72 x 72
293 72
0.224
878PS $202.00
2835CDA Circlips CW-18 B1022
Cylinder, cylinder head, and powervalve modifications required
Wrist pin S-508
ArmorGlide skirt coated;Titanium Nitride rings
YZ400 C,D,E,IT ‘76-78
85 x 70
397 85
STD
3347TD Circlips CW-18 B1003
Reed Cutaway
85.5
0.020
394P2 $172.00
3366TD Wrist pin S-277
86
0.040
3386TD
86.5
0.060
394P6 $182.00
3405TD
87
0.080
3425TD
YZ465 G,H,IT ‘80-81
85 x 82
465 85
STD
3347TD Circlips CW-18 B1014
Reed Cutaway
85.5
0.020
451P2 $192.00
3366TD Wrist pin S-277
86
0.040
3386TD
86.5
0.060
451P6 $202.00
3405TD
YZ490 J,K ‘82-83; IT490, ‘83-84
87 x 82
487 87
STD
478PS 192.00
3425TD Circlips CW-18 B1014
87.5
0.020
478P2 192.00
3445TD Wrist pin S-277 12-1413
88
0.040
478P4 192.00
3465TD
89
0.080
478P8 202.00
3504TD
YZ490N, ‘84-90;WR500, ‘91-93
87 x 82
487 87
STD
546PS 192.00
3425TD Circlips CW-18 B1014
PRO-LITE
87.5
0.020
546P2 192.00
3445TD Wrist pin S-277 12-1413
Not supplied with Wrist Pin
88
0.040
546P4 192.00
3465TD
88.5
0.060
546P6 202.00
3484TD
89
0.080
546P8 202.00
3504TD
YAMAHA 4 CYCLE
TT-R90E, ‘03-06
47 x 51.8 90 47
STD
4840PS $128.00
1850XE Circlips CW-13
11:1 High Compression
92 47.5
0.020
4840P2 128.00
1870XE Wrist pin S-592
94 48
0.040
1890XE
102 50
0.120
1969XE
PISTONS