This might be of use to anyone that wants to know what keihin jet matches what dynojet

Kehien Jets -------- DJ Jets

Num / Thou. ------- Num / Thou.
92.5 / 0.035 ------- 92 / 0.035
95 / 0.036 ------- 94 / 0.036
97.5 / 0.037 ------- 96 / 0.037
100 / 0.038 ------- 98 / 0.038
102.5 / 0.039 ------- 100 / 0.039
105 / 0.040 ------- 102 / 0.040
107.5 / 0.041 ------- 104 / 0.041
110 / 0.042 ------- 106 / 0.042
112.5 / 0.043 ------- 108 / 0.043
115 / 0.044 ------- 110 / 0.044
117.5 / 0.045 ------- 112 / 0.045
120 / 0.046 ------- 114 / 0.046
122.5 / 0.047 ------- 116 / 0.047
125 / 0.048 ------- 118 / 0.048
127.5 / 0.049 ------- 120 / 0.049
130 / 0.050 ------- 122 / 0.050
132.5 / 0.051 ------- 124 / 0.051
135 / 0.052 ------- 126 / 0.052
137.5 / 0.053 ------- 128 / 0.053
140 / 0.054 ------- 130 / 0.054
142.5 / 0.055 ------- 132 / 0.055
145 / 0.056 ------- 134 / 0.056
147.5 / 0.057 ------- 136 / 0.057
150 / 0.058 ------- 138 / 0.058
152.5 / 0.059 ------- 140 / 0.059

Jeff

 

Thanks for the info. I printed it off to save for reference.

 

Nyroc needs to copy that to his one of his carb jetting pages. Good info to have, thanks.

 

ive always herd that dyno jets were smaller than khien but according to this they are equal size

 

BrianT, the All-Seeing-Nyroc has already saved that jet info. Thanks for asking.

Thanks for the info, shortcut.

 

prarie venom,
you can see that jeff has jet sizes as stamped on the left, and drill sizes on the right, the dyno jets go by drill sizes, a 120 is 1.2 mm, the chart is in thousandths of an inch, which all match up, but you can see the variations, like a 140 kehin=130 dj, if you go by bore size. I know that mikuni's are similar, they are rated by flow, not bore size. so they are not equal, if you go by stamped size on the jet.

good info jeff, thanks..