Just drilling some holes will help. You will need to increase the main jet one size if you open it up enough. Remember you can open it too much and just make more noise and loose some low to mid range power.
This is an older thread, you may not receive a response, and could
be reviving an old thread. Please consider creating a new thread.
Honda ATV Forum
We’re a forum community dedicated to Honda ATV owners & enthusiasts. Come join the discussion about upgrades and reliability for your Rancher, Foreman, Recon, FourTrax, Pioneer, and more!