I was just curious. I had a cool-head on my other motor and decided to throw it on the new one. Thanks

 

If you are changing your compression you will have to rejet. When I switch out the race gas dome to my pump gas dome my jetting changes drastically. Good luck.

 

Wow, I'm surprised your jetting changed from swapping domes out. I run an ESR310 with a 38mm airstryker and switched from the pump gas dome to the race dome and my jetting never changed. I even called Eddie Sanders to ask if rejetting is required going back and forth from the different domes and they said no, it makes no difference in your jetting, he was right. Must just depend on all the different factors of your setup, carb, motor size, cylinder, head, reeds, etc.

 

mine must be tempermental because im changing jets often. today i had to go down 2 sizes. jet it and forget it?

 

So basically I just need and ride it and see how its running then