I have a 07 LTZ 400 and my buddy just picked up a New 07 DS 650x. Is there any thing I can do that will make my z400 run with his? We raced and 1,2,3 neck and neck then the DS 650x starts pulling away. My bike is stock. I removed my spark arrester. Do I need to rejet my carb? I want exhaust and change my front sprocket. Should I go up a tooth or down one? Thanks for any info.

 

Anyone????

 

You can change the main jet to a little bigger size. 130 MAIN stock if I remember correctly. Try a 135 main. When you race this guy, what gear do you start off with? If your starting with 1st , then your wasting your time. Try dumping the clutch in 2nd gear if you haven't already.

 

Your giving up a lot of CC's to the DS. I don't think anything short of a big bore kit is going to help you much. I have a hard time believing you stuck with him til 3rd. Once your buddy learns how to make the DS move your going to have an even tougher time keeping up[img]i/expressions/face-icon-small-smile.gif[/img]

PS - Keep him away from the Can-am forum if you dont want him going any faster....

 

<div class="FTQUOTE"><begin quote>Originally posted by: DSengineer

PS - Keep him away from the Can-am forum if you dont want him going any faster....</end quote></div>

LOL! How long has anyone ever kept their 650 stock? [img]i/expressions/face-icon-small-wink.gif[/img]

Honestly, the only thing the 400 has over the DS is weight. And like DS said, once they start working on them, they only get faster.