300ex big bore?

I have a problem with my 300 smoking and missing so i was fixing to pull the motor and order a big bore kit and was wondering if anyone knew the best place as far as a good price and good quality kit for my bike. Thanks

SOMEBODY ANY BODY PLEASE HELP I AM NEW TO THIS STUFF AND I WANT MY WHELLER TO RUN IN A COUPLE WEEKS
THANKS

[330exracer]

get the fst 330 kit youll love it. the website is fourstroketech.com i think and it cost 300 bucks. major increase in power.

will i have to buy any other parts besides the kit.

[Scott]

Contact FST, or ProFab ATV, or Curtis Sparks, or TC Racing, or any of the other hundreds of people that do engine mods and discuss it with them. That way you'll get the prices to compare and also find out what each of them offer in the "kit".

There could be many reasons why your bike smokes and misses, it's not necessarily the rings going bad. Time to either do some wrenching to try to diagnose it yourself, or take it to a shop and let them check it out.

My friend is going to check the whole motor or i may take it to a shop and have the whole motor inspected. Is there such thing as valve seals on these motors?