Zenoah Velocity Stack from Horizon Hobby.

[Yellow Spectra]

Will this work with the TRM motor and allow for a KN filter mount?

http://www.horizonhobby.com/Shop/ByCategory/Product/Default.aspx?ProdID=ZEN20003

[WillJames]

I don't think so. That looks like what John is running on his 231, but I don't think a K&N filter will fit on it way to small. That stack is just a little larger than the opening on the walbro. The stack on my pocket bike is HUGE compared to that.

Sorry I did not get to the pocket bike yet. I will tomorrow I promise.

[WillJames]

OK just checked the pocket bike. brrrr it is 22.7 outside in the shed.

The stack on it WILL fit my Spectra G carb. It has a 44.1mm outside Diameter and the K&N filter slips over it and is held on with a clamp that looks like a hose clamp. This sucker is HUGE and would IMHO look very out of place on something nice (unlike my pocket bike). From what I have heard from John and seen Carey post here, I am waiting for the MA Air filter which I have heard should be available before to long. I am running my Spetra G with no stack at all right now. I have the Bergen Velocity Stack I will probably install before I fly it again, but I will ultimately go with the MA unit.

My pocket bike stack and filter came from 4myscooter.com.

[r/c_outlaw]

k&n filter number 62-1360 will fit a 3/4 velosity stack...i plan on makeing one to fit it....the filter is small but very air effecient ..its only 2'' round and the element is 1 1/2'' tall...with a 3/4 rubber base opening for the carb...anyone else have any good filters out there using on the spectra??