I was just wondering where I could get a big bore kit or anything else that will make my '06 Automatic 400 FIS to get up and move. Also, what size of tires can I put on it with out sacrificing the power I do have? Thanks Gentlemen!

 

i dont have a 400 my self,but from what is said on here is that the 400 will get more powerful when it gets around 300-600 miles on it. as for tires i know of guys that have 27' tires on theres but there is a big power loss. 26' tires is more common on a 400cc if you go any bigger at all.
my turn for a question if you dont mind. why did you buy a new 400 if you just want to put a big bore kit in it right away. why not just get the 500 for roughly $800 more?

 

arnold, i really dont know why,was thinkin the 400 would be all i need but after readin all this stuff found out that it wont be . seat of the pants says 400 is not enough,yes it was a mistake now i have to try and work arounnd it. thanks for the input!

 

well hopefully the 400 will wake up a little when it gets some miles on it. i guess if you really wanted to you could put a pipe and jet,air filter, and any other mods to improve the power. i wouldnt frown too much though, my neighbor has a 400 and does what i do with 25' mudlites on his. good luck!