I think I have something of value here after doing anhoard's intake mod. I copied the design except the cone filter. I just used the filter media provided with the oem filter canister. After completing the very much need modification to prevent a hydrolock from any mud puddle I come across my quad would start normally. If I gave it any gas with the throttle it would bog down and all most stall. I pulled the spark plug and saw a wet sooty end. Rich fuel, so I took off the carb and cut some lines in the tamper bolts on the bottom of the bowl and removed the main jet. Next I heated the brass jet with a propane torch and filled the orific with solder. I took a .64mm drill bit and by hand drilled out the solder and cleaned with B-12 chem. Replaced the tamper bolts with M4 hex caphead screws and put the carb on the bike. Runs like a dream again just had to rejet the main.