Hi guys, I have an 06' Honda Rancher ES 350 2X4. I have a dyno jet kit stage 1. It came with a K&N air filter and the jet kit. I installed it with the jet that it called for and did everything exactly like it said but by looking at the spark plug it looks like it is running pretty rich. Although, that is the only sign. Could that be a problem? Also, is there anyone else out there that is using a dyno jet kit?

 

I'm having the same problem with my dyno jet jet kit. The only things I tracked it down two are the clip in the needle needs to be moved. Or the instructions for the fuel screw needs to be turned in. It stated 1 1/2 turn out for me. And with the stock idle jet I foul plugs in no time. So that may have to be turned in. I'm slowly figuring it out on my honda. Good luck to you!

 

Thanks man, I'll try turning my fuel screw in a little.