Hello,
I have an 06 Honda 450trx with K&N big air filter, Big Gun rev max and dmc alien complete pipe system. I like to get it jetted but been thinking about doing it myself. Is jetting fairly easy or is it best to take it and have it done.? if its easy enough can anyone provide detailed instructions on doing it?

Thanks...

 

http://www.dynojet.com/jetkits/atv/honda.aspx

It's extremely easy. The kit comes with complete step by step instructions. The above link has your kit. Infact, the instructions are available there for download.