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YAMAHA JETTING
MODEL
MAIN JET

CLIP

SLOW JET
FUEL SCREW
AIR SCREW
LEAK JET
NOTES
Yamaha
YZ80 93 stock

 270

3

35

N/A

1 1/2

N/A

 
Power Reeds (648) 
 270
3
35
N/A
1 1/2
N/A
 
RAD Valve (RAD-30A)
 270
3
35
N/A
1 1/2
N/A
 
 
YZ80 94 stock

290

4

35

N/A

1.5-1.75

N/A

 
Power Reeds (648)
270
4
35
N/A
1.5-1.75
N/A
 
RAD Valve (RAD-30A)
270
4
35
N/A
1.5-1.75
N/A
 
 
YZ80 95 stock

290

4

 35 

N/A

1 3/4

N/A

 
Power Reeds (648)
270
4
35
N/A
1 3/4
N/A
 
RAD Valve (RAD-30A)
270
4
35
N/A
1 3/4
N/A
 
 
YZ80 98-00 stock
300
3
32.5
N/A
1 3/4
N/A
 
Power Reeds (648)
280-290
3
32.5
N/A
1 3/4
N/A
 
PRO Series (PRO-58)
280-290
3
32.5
N/A
1 3/4
N/A
 
RAD Valve (RAD-30A)
280-290
3
32.5
N/A
1 3/4
N/A
 
 
YZ80 01 stock
300
3
32.5
N/A
1 3/4
N/A
 
Power Reeds (648)
280-290
3
32.5
N/A
1 3/4
N/A
 
PRO Series (PRO-58)
280-290
3
32.5
N/A
1 3/4
N/A
 
RAD Valve (RAD-30A)
280-290
3
32.5
N/A
1 3/4
N/A
 

YZ85 02 stock
138
2
45
N/A
2
N/A
 
Power Reeds (6105)
138
2
45
N/A
2
N/A
 
PRO Series (PRO-165)
138
2
45
N/A
2
N/A
 
RAD Valve (RAD-30B)
138
2
45
N/A
2
N/A
 
 
YZ85 03 stock
138
2
45
N/A
2
N/A
 
Power Reeds (6105)
138
2
45
N/A
2
N/A
 
PRO Series (PRO-165)
138
2
45
N/A
2
N/A
 
RAD Valve (RAD-30B)
138
2
45
N/A
2
N/A
 
 
YZ85 04 stock
138
2
45
N/A
2
N/A
 
Power Reeds (6105)
138
2
45
N/A
2
N/A
 
PRO Series (PRO-165)
138
2
45
N/A
2
N/A
 
RAD Valve (RAD-30B)
138
2
45
N/A
2
N/A
 

YZ125 91 stock

330

3

20

N/A

1 1/4

N/A

 
Power Reeds (604)
310
3
20
N/A
1 1/4
N/A
 
RAD Valve (RAD-33)
290
3
20
N/A
1 1/4
N/A
 
 
YZ125 92 stock

330

3

20

N/A

1 1/4

N/A

 
Power Reeds (604)
310-320
3
20
N/A
1 1/4
N/A
 
RAD Valve (RAD-33)
290-310
3
20
N/A
1
N/A
 
 
YZ125 93 stock

330

3

20

N/A

1 1/2

N/A

 
Power Reeds (609)
310
3
20
N/A
1 1/2
N/A
 
RAD Valve (RAD-33A)
290-310
3/4
20
N/A
1 1/2
N/A
 
 
YZ125 94 stock

  330 

3

15

N/A

 1 1/2 

N/A

 
Power Reeds (642)
 310
3
15
N/A
 1
N/A
 
RAD Valve (RAD-33B)
 300-320
3
 15 
N/A
 1 1/2
N/A
 
 
YZ125 95 stock

 360

4

55

N/A

  2 

N/A

 
Power Reeds (642)
 330-350
4
55
N/A
 2
N/A
 
RAD Valve (RAD-33C)
310-360 
4
55
N/A
 2
N/A
 
 
YZ125 96 stock
350
3
55
N/A
1 3/4
N/A
 
Power Reeds (642)
330
3
55
N/A
1 3/4
N/A
 
PRO Series (PRO-08)
330
3/4
55
N/A
1 3/4
N/A
 
RAD Valve (RAD-33C)
310-320
4
55
N/A
1 3/4
N/A
 
 
YZ125 97 stock
350
2
50 
N/A
 1 3/4 
N/A
 
Power Reeds (642)
 330 
2
50 
N/A
 1 3/4 
N/A
 
PRO Series (PRO-08)
 330 
2
50 
N/A
1 3/4
N/A
 
 
YZ125 98 stock
350
3
45
N/A
 1 1/2 
N/A
 
Power Reeds (642)
340-350
3
 45 
N/A
 1 1/2 
N/A
 
PRO Series (PRO-08)
340-350
3
40-45
N/A
1 1/2
N/A
 
 
YZ125 99 stock
 350
3
 45
N/A
1 3/4
N/A
 
Power Reeds (642)
 340
3
40-45
N/A
1 3/4
N/A
 
PRO Series (PRO-08)
 340
3
40-45
N/A
1 3/4
N/A
 
 
YZ125 00 stock
350
2
 35 
N/A
 2 
N/A
 
Power Reeds (694)
340
2
35
N/A
1 1/2-2
N/A
 
PRO Series (PRO-141)
340
2
35
N/A
1 1/2-2
N/A
 
RAD-Valve (RAD-33E)
 340 
2
35
N/A
1 1/2-2
N/A
 
 
YZ125 01 stock
460
3
  25  
N/A
2
N/A
 
Power Reeds (697)
420
3
25
N/A
2
N/A
 
PRO Series (PRO-147)

420

3

25

N/A

2

N/A

 
RAD-Valve (RAD-33F)
420
3
25
N/A
2
N/A
 
 
YZ125 02 stock
420
3
30
N/A
2 1/2
N/A
 
Power Reeds (697)
420
3
30
N/A
2 1/2
N/A
 
PRO Series (PRO-147)
420
3
30
N/A
2 1/2
N/A
 
RAD Valve (RAD-33G)
420
3
30
N/A
2 1/2
N/A
 
 
YZ125 03 stock
420
3
30
N/A
2 1/2
N/A
 
Power Reeds (6111)
410
3
30
N/A
2 1/2
N/A
 
PRO Series (PRO-147)
410
3
30
N/A
2 1/2
N/A
 
RAD Valve (RAD-33H)
390
3
30
N/A
2 1/2
N/A
 
 
YZ125 04 stock
410
3
40
N/A
1 1/2
N/A
 
Power Reeds (6119)
400
3
40
N/A
1 1/2
N/A
 
PRO Series (PRO-202)
400
3
40
N/A
1 1/2
N/A
 
RAD Valve (RAD-33I)
390
3
40
N/A
1 3/4
N/A
 
 
YZ125 05 stock
410
4
40
N/A
2 1/4
N/A
 
Power Reeds (6130)
390
3
40
N/A
2 1/4
N/A
 
PRO Series (PRO-217)
390
3
40
N/A
2 1/4
N/A
 
RAD Valve (RAD-33J)
380-390
3
40
N/A
2 1/4
N/A
 

YZ250 90 stock
370
3
 40 
N/A
 1 3/4
N/A
 
Power Reeds (644)
350-370
3
45
N/A
 1 1/2
N/A
 
RAD Valve (RAD-34A)
 330-360 
4
45
N/A
 1 3/4
N/A
 
 
YZ250 91 stock
330
3
45
N/A
1 3/4
N/A
 
Power Reeds (644)
350-370
3
45
N/A
1 3/4
N/A
 
RAD Valve (RAD-34A)
350-370
3
45
N/A
1 3/4
N/A
 
 
YZ250 92 stock
350
3
45
N/A
1 3/4
N/A
 
Power Reeds (644)
330
3
45
N/A
1 3/4
N/A
 
RAD Valve (RAD-34A)
310-330
3
45
N/A
1 3/4
N/A
 
 
YZ250 93 stock
350
3
50
N/A
1 3/4
N/A
 
Power Reeds (644)
330
3
50
N/A
1 3/4
N/A
 
RAD Valve (RAD-34A)
310-330
4
45
N/A
1 3/4
N/A
 
 
YZ250 94 stock
350
3
40
N/A
1 1/2
N/A
 
Power Reeds (644)
330
3
40
N/A
1 1/2
N/A
 
RAD Valve (RAD-34A)
300-330
3
40
N/A
1 1/2
N/A
 
 
YZ250 95 stock
175
3
48
N/A
1 1/4
N/A
 
Power Reeds (644)
165-170
3/4
48
N/A
1 1/4
N/A
 
RAD Valve (RAD-34B)
162-168
3/4
48
N/A
1 1/4
N/A
 
 
YZ250 96 stock
175
3
42
N/A
1 1/2
N/A
 
Power Reeds (644)
168
3
42
N/A
1 1/2
N/A
 
PRO Series (PRO-09)
168
3
42
N/A
1 1/2
N/A
 
RAD Valve (RAD-34C)
165
3
42
N/A
1 1/2
N/A
 
 
YZ250 97 stock
170
3
48
N/A
1 1/2
N/A
 
Power Reeds (679)
165
3
48
N/A
1 1/2
N/A
 
PRO Series (PRO-64)
165
3
48
N/A
1 1/2
N/A
 
RAD Valve (RAD-34D)
162-165
3
48
N/A
1 1/2
N/A
 
 
YZ250 98 stock
172
3
48
N/A
1 1/2
N/A
 
Power Reeds (679)
170-168
3
48
N/A
1 1/2
N/A
 
PRO Series (PRO-64)
168-165
3
48
N/A
1 1/2
N/A
 
RAD Valve (RAD-34D)
165-162
3
48
N/A
1 1/2
N/A
 
 
YZ250 99 stock
172
2
50
N/A
1 1/2
N/A
 
Power Reeds (689)
170
3
50
N/A
1 1/2
N/A
 
PRO Series (PRO-126)
170
3
50
N/A
1 1/2
N/A
 
RAD Valve (RAD-34E)
168-170
3
50
N/A
1 1/2
N/A
 
 
YZ250 00 stock
175
3
50
N/A
1
N/A
 
Power Reeds (689)
170
3
50
N/A
1
N/A
 
PRO Series (PRO-126)
170
3
50
N/A
1
N/A
 
RAD Valve (RAD-34I)
165-170
2/3
50
N/A
1
N/A
 
 
YZ250 01 stock
178
2
50
N/A
1 1/2
N/A
 
Power Reeds (6102)
178
2
48
N/A
1 1/2
N/A
 
PRO Series (PRO-157)
178
2
48
N/A
1 1/2
N/A
 
RAD Valve (RAD-34G)
175
3
50
N/A
1
N/A
 
 
YZ250 02 stock
178
2
50
N/A
1
N/A
 
Power Reeds (6102)
178
2
50
N/A
1
N/A
 
PRO Series (PRO-157)
178
2
50
N/A
1
N/A
 
RAD Valve (RAD-34I)
175
2
50
N/A
1
N/A
 
 
YZ250 03-04 stock
178
2
50
N/A
1
N/A
 
Power Reeds (6112)
178
2
50
N/A
1
N/A
 
PRO Series (PRO-186)
178
2
50
N/A
1
N/A
 
RAD Valve (RAD-34I)
175
2
50
N/A
1
N/A
 
 
YZ250 05-08 stock
178
2
50
N/A
1
N/A
 
Power Reeds (6131)
175-178
2
50
N/A
1
N/A
 
PRO Series (PRO-218)
175-178
2
50
N/A
1
N/A
 
RAD Valve (RAD-34J)
172-175
2
50
N/A
1
N/A
 

ATV Blaster 88-89 stock
220
3
32.5
N/A
1 1/2
N/A
 
Power Reeds (630)
220
3
32.5
N/A
1 1/2
N/A
 
PRO-Series (PRO-85)

220

3

32.5

N/A

1 1/2

N/A

 
RAD Valve (RAD-35)
220
3
32.5
N/A
1 1/2
N/A
 
RAD Valve (RAD-35A)
190-220
3
32.5
N/A
1 1/2
N/A
 
 
ATV Blaster 90-01 stock
230
3
32.5
N/A
1 1/2
N/A
 
Power Reeds (630)
230
3
32.5
N/A
1 1/2
N/A
 
PRO-Series (PRO-85)

230

3

32.5

N/A

1 1/2

N/A

 
RAD Valve (RAD-35)
230
3
32.5
N/A
1 1/2
N/A
 
RAD Valve (RAD-35A)
190-220
3
32.5
N/A
1 1/2
N/A
 

ATV Banshee stock
200
3
25
N/A
1 1/2
N/A
 
Power Reeds (645)
210-220
3
27.5
N/A
1 1/2
N/A
 
PRO-Series (PRO-86)

210-220

3

27.5

N/A

1 1/2

N/A

 
RAD Valve (RAD-36A)
200
3
30
N/A
1-2
N/A