PLEASE HELP!!! Jetting questions, new with jetting.

[2007TRX400EX]

I am kinda new to the jetting situation. I got a K&N with a T-4 slip on. I got a dyno jet kit, but the instructions tell me to go to the 146 main jet, but isn't the stock a 148 main jet? let me know what worked for all of you... please

[flyboy1294]

Originally posted by 2007TRX400EX
I am kinda new to the jetting situation. I got a K&N with a T-4 slip on. I got a dyno jet kit, but the instructions tell me to go to the 146 main jet, but isn't the stock a 148 main jet? let me know what worked for all of you... please

As for the stock size, I think 148 sounds right but don't quote me.

However, dynojet uses different numbers than keihin (stock.)

a 146 dynojet is equal to a 160 keihin.

Don't know if that was the answer you were looking for or not...

[flyboy1294]

Here is the chart from JetsRus.com

_________
KEIHIN DYNOJET MIKUNI
92 92 85
95 94 87.5
98 96 90
100 98 92.5
102 100
105 102 95
108 104 97.5
110 106 100
112 108
115 110 102.5
118 112 105
120 114 107.5
122 116
125 118 110
128 120 112.5
130 122 115
132 124
135 126 117.5
138 128 120
140 130 122.5
142 132
145 134 125
148 136 127.5
150 138 130
152 140
155 142 132.5
158 144 135
160 146 137.5
162 148
165 150 140
168 152 142.5
170 154 145
172 156
175 158 147.5
178 160 150
180 162 152.5
182 164
185 166 155
188 168 157.5
190 170 160
192 172
195 174 162.5
198 176 165
200 178 167.5
202 180
205 182 170
208 184 172.5
210 186 175
212 188
215 190 177.5
218 192 180
220 194 182.5
222 196
225 198 185
228 200 187.5

[2007TRX400EX]

Thank you, that pretty much answered it, i am new to the forums, how do you make your quad stats? what section do you post it in?

[flyboy1294]

Originally posted by 2007TRX400EX
Thank you, that pretty much answered it, i am new to the forums, how do you make your quad stats? what section do you post it in?

No problem, the different jetting sizes are very confusing.

I'll pm ya with that last part.