Kawasaki Forums

Kawasaki Forums (https://www.kawasakiforums.com/forum/)
-   Ninja 250R (https://www.kawasakiforums.com/forum/ninja-250r-12/)
-   -   uni pod filter question (https://www.kawasakiforums.com/forum/ninja-250r-12/uni-pod-filter-question-14508/)

fivepointnine 08-08-2007 02:36 AM

uni pod filter question
 
can I install the pod filters and get away with not re-jetting for a little while?

markmeinteil 08-08-2007 02:45 AM

RE: uni pod filter question
 
Have you added an aftermarket exhaust system? If not, you won't gain much from the air pods anyway. But no, I wouldn't do it. Your bike will only run worse by not having the proper air fuel mixture.

fivepointnine 08-08-2007 03:06 AM

RE: uni pod filter question
 
well here is the deal, I CANNOT for the life of me get those airbox boots back onto the carbs, they were off when I bought the bike and found that tonight....thats why the bike wont idle right, too much air...WAAAY too much air...I seriously tried all night to do it, I have them both hose-clamped at one point then somewhere along the line they popped out....I just dont want the headache! no exhaust, just want them for the ease of maintenance.......

markmeinteil 08-08-2007 03:57 AM

RE: uni pod filter question
 
So both were hose clamped? what happened to the springs that keep them tightened?

dilysi 08-08-2007 04:07 AM

RE: uni pod filter question
 
the secret acording to the dealer you can get away with shiming the nedle and setting the air scroo th 3.5 tearns out but it is olny a matter of time befor you will do major intermal damage

fivepointnine 08-08-2007 04:28 AM

RE: uni pod filter question
 
I think Ill just take it over to the dealer on friday and pay them the $35 or whatever for them to re-attatch the airbox....I dont want to take the risk of messing up my engine from running lean and I wanna be riding so I dont want to wait for a jet-kit. the bike only had one spring-clamp on each side when I got it......those things dont do anything!

dilysi 08-08-2007 05:24 AM

RE: uni pod filter question
 
you doant need a jet kit its not worth the mony just increes your main jet by 1# size and your piolet by 2# sizes

fivepointnine 08-08-2007 01:14 PM

RE: uni pod filter question
 
so I could get away with not shimming my needles?

fivepointnine 08-08-2007 01:17 PM

RE: uni pod filter question
 
anyone know what the stock jet settings are?

fivepointnine 08-08-2007 01:19 PM

RE: uni pod filter question
 
what about a 102 or 105 MJ and a 38 PJ?

mnosbor 08-08-2007 01:43 PM

RE: uni pod filter question
 
Stock is 105 and 38. You cant get away with just shimming. That only helps the midrange.
These bikes usually have idle issues because theyre lean on the low end factory so anything
that makes them leaner (pods, exhaust) will give you grief.





One thing you can check is the boots between the carbs say head and carb on them, they
will not stay on if they arent in the correct direction. Put the carbs on the air box boots then shove them onto the engine side boots. They are truly a pain in the rear, and well worth the $35 to have someone else put them on if you are getting nowhere.






fivepointnine 08-08-2007 02:03 PM

RE: uni pod filter question
 
yeah, because the factory parts diagram at bike bandit doesnt list anything bigger than a 38PJ....yeah I have no prob with the carb-head boots, its the airbox-carb that is causing me all the grief!

fivepointnine 08-08-2007 07:25 PM

RE: uni pod filter question
 
so with 2 uni pods at sea level, Im thinking a #40 PJ, a #110 MJ (maybe stock?) and 3 #4 washers under my needles....does this sound ballpark to you guys (just go get me up and running pretty decent)?

mnosbor 08-08-2007 07:33 PM

RE: uni pod filter question
 
Id get a 107 and 110. With an exhaust change its 110 and 112.

Its better to get 2 mains sizes to experiment with. At least with the pods you dont have to fight with the air box. I think you will have to modify (cut) the airbox to give the pods room though.

fivepointnine 08-08-2007 08:03 PM

RE: uni pod filter question
 
yeah, Im gonna have to chop the airbox......does those PJ's sound correct? eventually Im gonna get the exhaust too so the pods just make sense right now.

mnosbor 08-08-2007 11:41 PM

RE: uni pod filter question
 
You may not need to change the pilot but 38 sounds like the correct stock # 40 is the next up.
The dealer can tell you what itisfor sure. The jets are around $10 a set, I got 107s from the dealer but never installed them. If you order from the dealer its usually the same $ and you dont have to pay shipping and its faster. Mine actually had the MJs in stock. It helps if you have your carbs with you, some of the aftermarket jets fit.

Remember if the rpms hang when you blip the throttle its lean, if they go low then come back up its rich.




fivepointnine 08-09-2007 03:00 AM

RE: uni pod filter question
 
yeah, Im gonna go with the stock PJ and 110 MJ's, the guy at the shop said that 107 would not be enough with the pods....should I do my pilot air screws 3 turns maybe? or leave them at the 2.5 I set them to tonight? (I gotta throw some threadlock in there, the one was a little too easy to move, Im afraid it might vibrate out of adjustment) Ill add the 3 #4 washers on each needle tomorrow night.....the airbox was a beast to take out!

mnosbor 08-09-2007 03:45 PM

RE: uni pod filter question
 
I wouldn't thread lock the mix screws, just make sure they're assembled correctly, o-ring, washer then spring. The PO had mine wrong. You'll likely stick to 2 1/2 turns however mine runs at 2 3/4 better but it took some solving other issues (dragging clutch) to figure that out.

You can try 3 washers but if you have issues with the midrange thats the first thing to try changing. Make sure they're the super thin brass washers.

I set my screws up when I had the carbs out by visually seeing how much they stuck up out of the hole and compared them to each other. This may not work for you as I'm used to working with small tolerances and can see and feel the difference. I did find out that because of what the PO did to my mixture screw parts that if I did them the same turns out they would have been off from each other. Does this make sense?

I was going to run the 107 with stock airbox I was having lean issues but I think it may have been a restricted jet. After I cleaned the jets it was much better so I never put them in.

Youll also want to sync the carbs when your done messing around.

fivepointnine 08-10-2007 01:06 AM

RE: uni pod filter question
 
yeah, Im pretty sure one of the carbs is missing the spring below the screw, but as of now it is running pretty good, still idles a little high, but above 3k it runs really good (I have it idleing around 1800-1900) it might be a bit fat in the midrange, but its not bogging or anything, and above 9k it SCREAMS now.........I have the screws at 2 3/4 turns out, 110 MJ's and 3 brass washers on each needle..........nobody ever blew up an engine by running it too rich!!! it also starts with barely any choke now!

mnosbor 08-10-2007 03:24 AM

RE: uni pod filter question
 
You may want to track down a spring, it keeps that port sealed by pressing on the o-ring. It could cause that cylinder to run different from the other.

If its not bogging then thats good. Ride it for some time to get it good and warm then see where your idle will set at.

If its too rich it will run worse hot.

Id like to put pods on mine but it can cause carb icing, here its so humid that when its under 60 my carbs ice, I dont want to make it worse.

fivepointnine 08-10-2007 04:07 AM

RE: uni pod filter question
 
yeah, my only problem is that the RPM's drop just fine to about 3k then hang for a sec then drop the rest of the way to idle...Im assuming that is the point where the needle transfers to the PJ/ Pilot air screw settings, so that is where I need to look...Im ordering the spring and o-ring from bike bandit tomorrow.

dilysi 08-12-2007 01:39 AM

RE: uni pod filter question
 
i put slipons on my beast then put a 107 main 40 piolet and havent looked back

fivepointnine 08-23-2007 09:21 PM

RE: uni pod filter question
 
got the idle problem solved, one carb didnt have the spring, washer or o-ring on the pilot air screw!!!!!!!!!!!!!!!!!!!????????????????
threw those parts in yesterday, put both carbs to 2 3/4 out and now she runs like new, idles at around 1000-1200 when warm.

when I bought the bike it did not have a air-filter in it and the carb boots were dis-attatched from the airbox!!! no wonder the bike ran like crap, but I did get it DIRT cheap ($550)

fivepointnine 08-23-2007 09:23 PM

RE: uni pod filter question
 

ORIGINAL: mnosbor

You may want to track down a spring, it keeps that port sealed by pressing on the o-ring. It could cause that cylinder to run different from the other.

If its not bogging then thats good. Ride it for some time to get it good and warm then see where your idle will set at.

If its too rich it will run worse hot.

Id like to put pods on mine but it can cause carb icing, here its so humid that when its under 60 my carbs ice, I dont want to make it worse.
dont have to worry about carb icing here where I live, the humidity sits at around 10% or less year round!

mnosbor 08-24-2007 02:31 AM

RE: uni pod filter question
 
Lucky you...I miss Utah [:'(]

Ill be interesting to see how the bike behaves this fall. I had all sorts of problems with it when I got it, maybe the icing wont be so bad now.

Thats a good deal on your bike, definately worth messing around with. Glad you got it sorted out.

fivepointnine 08-24-2007 04:08 AM

RE: uni pod filter question
 
since I got the carb issue worked out Ive been riding it to work almost every day....I get quite a few looks, probably because it now sounds like a 250GP bike! haha...I love the sound of those pods


All times are GMT. The time now is 07:58 AM.


© 2024 MH Sub I, LLC dba Internet Brands