6th gear bog and antifreeze smell

[breezeair]

I have an 06 200 FMF gnarly woods pipe everything else is stock. I tune the carb with 155 main 45 pilot 1174 needle with the clip in the second from the top position. 40:1 Klotz premix. Alt. is under 1000ft. The bike screems in every gear but 6th, it just doesn't seem to pull as hard in 6th when I drag with my boys. Any ideas what might be happening? Also, when we were dragging yesterday on the second pass I smelled a strong odor of antifreeze when I stopped, the guy I raced smelled it too. I know it was coming from my bike because his is air cooled. I never saw any sign of a leak and I did not smell it again that day. Once again any ideas?
Thanks

 

[Zacharus]

6th gear has a low ratio and is an "overdrive"

just like a 6th gear in a car, it doesnt have much acceleration but its meant to travel faster and low engine speeds..

so dont expect to accelerate as fast in 6th then all of the other gears

 

[KDX CRAZY]

You may also be getting to the max in sixth gear and expecting more , since I fitted the Pro Circuit pipe I get to top speed very quickly .

 

[duke]

The smell of anti freeze is common if the tank was filled too high. In so doing it has a tendency to spill over onto portions of the hot engine by means of the over flow tube

 

[Rhodester]

I got rid of the tank altogether. Unless you're riding for extended periods at just off idle in first gear (ie. very little air flow over the radiators) I don't think the 200H needs the tank (that may not be the case for the 220), at least mine doesn't anyway.