Big Bore Help

[xRWMx]

sup guys new to the site. i own a 05 z400 and im lookin for a big bore kit. any suggestions? i was looking at the one straight from yoshi it comes with cams and rev box but i could use some outside help thnx.

[BlueZ440]

Athena kits are great..

[Tri-valleyracin]

i think the athena kits are nice. the yoshi ones are alot of $. if u have the $ to put a yoshi in it but i would go with the athena and some other parts to be able to have fun with it not just a crap load of power.

[400exrider_ed]

Cams and a FCR carb will give more power than a big bore, plus if you go big bore later you'll have the cams and carb needed to make it sing already. My buddy has a full Yoshi motor stroker crank and all, and my Athena 434 homemade motor will run with it on a drag and pulls it out of the hole on a mx track. Makes em sick that he droped twice as much as me, waited weeks to get a motor back and my simple bolt on mods motor is just as powerfull. Plus I run 94pump he needs VP C-12.

[400exrider707]

I have this for sale.........http://www.exriders.com/vbb/showthread.php?s=&threadid=224920