pods or k&ns

[two-stroke-brit]

when considering changing out the stock air filter on my buffalo,
what are the pros and cons of pods/sponge verses k&ns.
and any recommendations on brand and stores would be nice.
thanks mark

[oldjapanesebikes]

Others will have their own contributions no doubt, but I wouldn't replace the stock set up unless I actually had to to meet a specific styling/design objective. For just normal use, I think stock is the least amount of bother.

[rngdng]

The stock GT750 airbox is pretty good, and with stock carbs and pipes, I'd stay with it.

I happen to have K&Ns on BlueBoy, but it's not a stock bike. The foamy-types are good, but the K&Ns will last for a long, long time, and for that reason, I think they are a better value. The foamys rot after a couple of years.



Lane

[two-stroke-brit]

thanks guys , i plan to change out the stock exhaust (a few dings and rash) to expansion chambers and will want to change the air filters at the same time ,
i planned to run the stock system until i had run the motor in and i had got used to the charracter of the bike before changeing to much.
i figured it would be easier to trace problems on a stock settup.
thanks for the input.
mark

[Suzsmokeyallan]

Remember Mark when you change out the stock airbox you have to hold up the back of the carbs somehow if not its a lot of weight for the intake rubbers to keep up without sagging.
Even with some Jemcos fitted you can still run the stock box and get a decent amount of power retaining it.
This is of course using a stock motor in the equation and not a highly modded engine.

[two-stroke-brit]

thanks allan, its a thought to retain the standard airbox.
when going up a size on the main jets what are the increments.
thanks mark

[Suzsmokeyallan]

Usually jets go up in .5 increments, for example 100 then 105 then 110 and so on.
On the 72 and 73 airboxes you could cut off the paper from the element frame and fit on a two stage oiled sponge filter assy instead.
You would have to buy the two density sponge pieces and stitch or glue the joins after cutting them to size.
This will obviously flow a little more air which will mean some jetting checking as to whats happening with the alteration.

[tz375]

I'd be tempted to suggest that stock BS40 CV carbs are OK with a stock quiet efficient airbox. On a hotrod, it's better to replace them with VM34 or 36 carbs and UNI foam filters or large oval K&N. Avoid small pods with chrome backs - they are not too good.