i have put a few mods on and was recommended to go to a 175 main,but it runs good to me so how do i know if i need this jetting...it doesnt pop and backfire or anythying!

i live in the northeast and have never seen or heard of a place to dyno , so i have no way to tell if i am getting the best out of my mods...how do i find a dyno?

 

chirochris i found dynojet website found some places in new york.dynos in new york

 

wow thanks

there is one about 40 min from here...now i found it what do i do when i get there put it on there and let her go!

i guess what im asking is what is the process there..

 

Use flat track type tires (no knobbies)
Start the test at about 3000rpm in 4th or 5th gear (it doesnt matter as long as you use the same gear every time) and rev it till it hits the rev limiter.
Make sure the dyno operator is very knowledgeable about O2 readings and the Air/Fuel ratio monitor is working.
You should be able to start dropping jet sizes and see the power come up.
Peak power is usually close to 13:1 A/F ratio.