Quote Originally Posted by Pfaelzer View Post
Hi milton,
...
Thanks a lot milton for bringing this link into my tread - that's exactly why I have launched it. Very interesting. I one of your links I could see pictures of the air-filter:

air-filter thread

Can anyone explain, what that guy is writing here and what are his thoughts about it? I also found this weird looking "insert" inside the filter-box and I still couldn't figure out, why it is in there. In general I don't like this box. It seems too small and the air-intake is very low, therefore dangerous, when going through deeper waters.
Hi AW,

I do read Chinese but unfortunately not very technical on mechanical matters. As far as I can gather from the write-up, the writer suggested to take out the front part of the plastic cover (inlet) of the air filter chamber, and also take out a "谐振腔" (resonance cavity ??) inside the chamber, which i guess is what you called as the "insert". In other word, the "insert" you indicated is inbuilt originally, and was suggested to be taken out "to improve the air flow", not something to be added in. Again, the writer claims immediate benefits after the mods.
I am afraid i can't help much more than this literal translation here.

Cheers,
Milton