Pod style foam filter By thxcuz (Read 617 times)

[thxcuz]

As I mentioned in another post, my airbox fell apart while I was riding it. I got it put back together but I figured I'd better replace it. I ordered a foam filter from scooter parts express. Do I need to oil the filter? I heard that somewhere.
I already have an 81 jet but I ordered an 85. Is that too big or should I look for a 82 or 83
Thanks

[Alleyoop]

If you do not live in a dusty area and or only ride on blacktops no need to oil the filter, but if yo want to you can LIGHTLY just wipe a oily paper towel on the outside of the filter.

As far as main jets WHY are you putting on a bigger main? is the motor bogging on the top end?
Alleyoop

[thxcuz]

It was my understanding that if I replace the stock airbox with a foam filter I need to richen the air/fuel mix since I'm adding more air. Do I have that wrong?

[Alleyoop]

Sorry, yes up the main jet by 2 sizes.
Alleyoop

[thxcuz]

I'm having trouble finding an 83. Can I do 85 without going too rich?

[Alleyoop]

I would first see if even you need to go up first.

www.z1enterprises.com/product/SIKHM-110083

[thxcuz]

I put the filter on today and rode around. I'm not sure if any of this is related but here are my impressions

It seems to run smoother, not as much vibration

It seems louder which I'm not happy about

It feels to have a little more low end power. Top end seems unaffected

This could all be in my head and maybe the filter makes no difference, I dunno

The change in volume could mean my jb weld stud fix failed. I'll have to look under it monday to be sure.

As far as the tube coming from the valve cover goes, I just zip tie it to the frame, right? I read you shouldn't block it.

I'll also do a plug chop monday to see if I'm running too lean. I've got an 81 in there now, it was the stock jet in the sealed carb that came with the scooter. Maybe I was too rich before I replaced the airbox with the filter. 81 seems big for a 49cc. (Though it may be a secret 63)

I didn't use my GPS app to test speed. But I was hitting 40mph on the chinometer
So what is that, like 28mph in real life .

At least I didn't seize

[trashtruck12172]

the feds make the manufacturers set the motors on the lean side at the factory so a pod filter will just add more air. I wouldn't be surprised if you had to add more fuel.

[rks]

"As far as the tube coming from the valve cover goes, I just zip tie it to the frame, right? I read you shouldn't block it."


You are right....don't block it......must be allowed to breathe. When I switched to a cone filter, I installed a 'catch can' on the end of the crankcase vent hose.....instead of allowing it to drip on the ground, or all over the underside of the scooter. Also, this lets me monitor the amount of blowby.

"i1271.photobucket.com/albums/jj622/rks3526/Breather%20Catch%20Can/IMG_0074.jpg"

[thxcuz]

I put in the 85 since I had it. I don't see any negative change in performance.
I think it's time to repair the broken things that can be lived with like the right brake lever that has the tip broken off and the blinkers that don't work.