ENGINE
302
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& grips
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YEARS BORE
X
STROKE
BORE
TOP
END
KIT NO.
WISECO
PISTON
PART NO.
REPLACEMENT
RING SET
PART NO.
REPL
PIN &
CLIPS
TOP END
GASKET
KIT
YAMAHA MOTORCYCLE CONTINUED
MOTORCYCLE 2-STROKE
YZ125
1997
54 54.00
693M05400 118.00
G
2126CS 17.28
G S467
W5420
Pro-Lite
x
*Ceramic Composite-Cylinder sleeving or
54.5
CW15
replating required for oversizes
Racer’s Choice GP Style
1997-04 54 54.00
765M05400 152.00
G
2126CS 17.28
G S632
W5420 W5981
YZ125
x
56.00
765M05600 162.00
G
2205CS 17.28
G
1997
2002
Electra Coated
54.5
CW15
No intake window
W5677 W6140
Pinned on centerline
1998-01 2003-04
Longer skirt than stock
*Ceramic Composite-Cylinder sleeving or
replating required for oversizes
Racer’s Choice Flat Top Conversion
1997-04 54 54.00
762M05400 152.00
G
104608 36.96
G S632
W5420 W5981
YZ125
x
56.00
762M05600 162.00
G
2205CS 17.28
G
1997
2002
No intake window
54.5
CW15
Flat Top Conversion
W5677 W6140
CSA Ring is Titanium Nitrided coated
1998-01 2003-04
Armor Glide Skirt Coated
YZ125
1998-00 54 54.00
101538 165.73
G
726M05400 118.00
G
2126CST 17.28
G S467
W5677
Pro-Lite
x
54.50
101539 165.73
G
726M05450 118.00
G
2146CS 17.28
G
*Ceramic Composite-Cylinder sleeving or
54.5 55.00
101540 165.73
G
726M05500 118.00
G
2165CS 17.28
G CW15
replating required for oversizes
56.00
101177 189.73
G
726M05600 142.00
G
2205CS 17.28
G
YZ125
2001
54 54.00
101541 165.73
G
726M05400 118.00
G
2126CST 17.28
G S467
W5677
Pro-Lite
x
54.50
101542 165.73
G
726M05450 118.00
G
2146CS 17.28
G
*Ceramic Composite-Cylinder sleeving or
54.5 55.00
101543 165.73
G
726M05500 118.00
G
2165CS 17.28
G CW15
replating required for oversizes
56.00
101178 189.73
G
726M05600 142.00
G
2205CS 17.28
G
YZ125
2002
54 54.00
104180 170.80
G
797M05400 118.00
G
2126CST 17.28
G S467
W5981
Pro-Lite
x
54.50
104181 170.80
G
797M05450 118.00
G
2146CS 17.28
G
54.5 55.00
797M05500 118.00
G
2165CS 17.28
G CW15
56.00
102002 194.80
G
797M05600 142.00
G
2205CS 17.28
G
YZ125
2003-04 54 54.00
101302 170.80
G
797M05400 118.00
G
2126CST 17.28
G S467
W6140
Pro-Lite
x
54.50
101303 170.80
G
797M05450 118.00
G
2146CS 17.28
G
54.5 55.00
101304 170.80
G
797M05500 118.00
G
2165CS 17.28
G CW15
56.00
102003 194.80
G
797M05600 142.00
G
2205CS 17.28
G
YZ125
2005-15 54 54.00
101752 165.62
G
845M05400 118.00
G
2126CS 17.28
G S668
W6331
Pro-Lite
x
56.00
101283 189.62
G
845M05600 142.00
G
2205CS 17.28
G
54.5
CW15
Racer’s Choice GP Style
2005-15 54 54.00
101947 199.62
G
846M05400 152.00
G
104608 36.96
G S668
W6331
YZ125
x
56.00
101583 209.62
G
846M05600 162.00
G
104609 36.96
G
Electra Coated
54.5 58.00
101584 209.62
G
103201
162.00
G
2284CS 17.28
G CW15
CSA Ring is Titanium Nitrided coated
Armor Glide Skirt Coated
* Crankcase clearance required for 57mm and
larger bore diameter *
175CT-2
thru 77 66 66.00
471M06600 128.00
G
2598CD 34.55
G S259
175CT-3
thru 77 x
66.50
471M06650 128.00
G
2618CD 34.55
G
175DT
1979-81 50 67.00
471M06700 128.00
G
2638CD 34.55
G CW16
175MX
1979-82
67.50
2658CD 34.55
G
68.00
2677CD 34.55
G
IT175
1976-81 66 66.00
2598CD 34.55
G S259
YZ175
1976-81 x
66.50
102709
128.00
G
2618CD 34.55
G
50 67.00
102710
128.00
G
2638CD 34.55
G CW16
67.50
101091
148.00
G
2658CD 34.55
G
68.00
2677CD 34.55
G
RT180
1990-98 64.5 64.50
772M06450 118.00
G
2539CD 34.55
G S486
x
65.00
772M06500 118.00
G
2559CD 34.55
G
54 65.50
772M06550 118.00
G
2579CD 34.55
G CW16
66.00
2598CD 34.55
G
IT200
1984-86 66 66.00
103067
152.00
G
2598CD 34.55
G S259
x
66.50
2618CD 34.55
G
57 67.00
103069
152.00
G
2638CD 34.55
G CW16
67.50
2658CD 34.55
G
68.00
103862
172.00
G
2677CD 34.55
G
