Pod filters/jets/plugs

[brock]

I'm not sure, of course, since the box says 52mm. But i'll be damned if they don't come to exactly 54mm. likewise i'll be damned if my carbs arent 54mm, and i'm sure they didn't stretch.

[TopCatGr58]

BTW, you never said WHERE you got them, from a local shop, or Online store, which one??

I'm looking to get some of this style for my basket case bike, and trying to figure where to get them and NOT get them from.
T.C.

[brock]

Online store, bayway cycles, an ebay store.

tho, to be fair to them, it seems to have come just as packaged. They packages were unopened, tho i cant explain how a 54mm filter came in a 52mm box. especially given that the 52mm box says it fits my bike, and what came in it (54mm i guess) fits it perfectly. weird.

So maybe the first thing i'll do is try to adjust the idle mixture screws. see how that leaves my plugs looking.

btw, having to install new plugs every single time is killing me. I've got tons of plugs left over that are brand new, just a little black. a lifetime of plugs, once i get the mixture right.

[GNEPIG]

i also found that nothing i changed on my carbs would make the emgo filters work...nothing, there must not be enough surface area for how much air that is needed for our bikes... it hurts but i came off the money for the K&N oval style filters and they have worked the best, and they look good too ...had a set on a previous xs11 for 10 years, i sold that bike they still could be on it
you will have to up one on the main if you use those

you get what you pay for

[pggg]

Getting rich readings from indy filters seems bizarre. Maybe drilling out the main fixed air jets might fix things. You'd need a pretty bloody skinny drill bit though. You wouldn't think a 2mm difference in the intake diameter would make any difference if the barrels were the same diameter. Mind you funneled fuel jets seem to be different than non funneled fuel jets for some reason. Shows how finicky carbs can be. I've always reckoned tuning your bike boils down to experimenting with different settings rather than following fixed rules.

[ratbyk]

Pod Filter Problems

Some thoughts on these individual air filters. I tried them with all the difficulties being discussed. I had my carbs off/on at least 6 times trying to sort the problem out. I am no dummy on carbonation. Have won several championships in sports car racing and stock cars. Was the chief mechanic and engine tuner on John Greenwoods 1975 Trans Am Championship winning car.
No matter what I tried with these cheap after market pod filters I could not make them work. I could tune it to work under 4000RPM. But as soon as I went beyond that range they went so rich the engine power disappeared and the black smoke rolled out the pipes. If I got it so it would work up high then the engine would hardly run down low with lots of back fire out the carbs as the power was put on due to lean mixture.
If I pulled the pods off the bike went back to being a screamer.
Only thing I did not try was to pull the ram tubes out of the original air box. Cut off the flange or bellows portion on their intakes. Then mount the pods onto the end of the original ram tubes. This may work. Worth a try to anyone who has a set of pods and is having difficulty.
By moving the pods well out from the carb air horns (and stop blocking off the air/balance ports in the outer rim of the air horns) may solve the problem. You would also have to support the weight of the carbs and filters from their own weight trying to pull the carbs off the intake manifold runners. A couple of large plastic tie tabs around the carbs to the frame would suffice I think.
Don't have a set of pods or an XS to try on anymore. Maybe someone who has could attempt this mod and report back on their results.
Ken/Sooke

[tab1324]

The ram tube suggestion

Ken,

I may try this on my XJ to see if that covers all the issues at once. I so far have the idle mixture dialed in pretty good and while it's just slightly boggy in the low rpm range, once past 3500-7000 it revs sweet. Plugs in that range look only slightly lean. At idle they look perfect.

I'll try the ram tube thing and report back. Of course this is on the XJ with YICS so all might be different for other bikes.

Let you know how it goes in a few days. It's been crappy weather here for a while and it's supposed to be the same for a few more days.

Tom B.

[skids]

Re: Pod Filter Problems

Me neither. I like mine by way of a cold beer! :-)

Originally posted by ratbyk
I am no dummy on carbonation.
Ken/Sooke

[81xsproject]

I will be doing this very soon as just ordered some uni pods (57mm). There is another XSive here in the group who has done this passed on some of the info to me. He said it made a quite the difference. The only downfall I have seen so far, is that the foam uni's were the only thing I could find that large. At least in my search internet stores as most are set up to "help" you by telling YOU what filters you need once you enter your make/model/year. On the upside you don't have to worry one bit about this or that filter blocking certain ports.
JC

[TopCatGr58]

Hey JC,

Where'd you order your UNI filters from?? And why 57mm, the 81 is 54mm!! I got mine from JCW 4 years ago, and they list them according to the make/model of bike! There was a prominent oily film on the inside of the rubber lip, and there's NO inner metal liner, and so IF you try to tighten them really tight, then they squeegee off the end of the carb throats!! So....just get them kinda snug, and try using a little carb cleaner on the inside of the lip to remove the oil so that they will grip better, if at all with those 57mm sized ones?
T.C.

[81xsproject]

Well TC,
I talked to another XSive that is using them in conjunction with the air box boots. He said he cut off the flared end of the boot and put the filter around the outside of the boot which he said was 2.25"/57mm. It is in an older very long post (one of the many about pods). I got them from thriftyrider.com which basically sells them right out of the same catalog thay have at the yamy dealer. The were $14 apiece, black, no chrome.
JC

[brock]

but even in that case, you're still restricted by what is the smallest part of the filter. the air is still going to have to squeeze through the throat of the filter, and that's what's restricting in the first place.

so you're saying that the 57mm ones will let the perfect amount of air pass, since it will have a wider throat, as well as fit perfectly on the connectors on the air box? I might give that a try.

[81xsproject]

I am not saying anything about the airflow with this set-up except that it will be straight through the carb, less turbulent, and that the collar of the airbox boot, where it clamps on the carb, will not be blocking any of the ports that some of these pods are. Again, the 57mm is ONLY to compensate for the larger diameter of the outside of the airbox boot.

[81xsproject]

since I keep making reference to the XSive I questioned and the thread with the pics, go check this one out folks http://www.xs11.com/forum/showthread...&highlight=pod

[brock]

Since I don't see him here, and I don't know how to cc with this forum, maybe someone can answer this:

what is up with that spunge looking filter connected to the back of the carbs? how does that stay on there?

I don't think that's what I want, though. i wonder if I should maybe mess with the float height a bit, or mess with the idle mixture screws to help lean this out a bit? I'm also thinking of dremmeling out some of the pod throat to try to increase the surface area a bit, maybe allow a bit more air to go through.