Register Community Calendar Today's Posts Search

Go Back   GZ 250 Forums > GZ250-Specific > Performance

Reply
 
Thread Tools Display Modes
Old 05-30-2014, 10:45 PM   #1
benmb
Junior Member
 
Join Date: May 2014
Location: Myrtle Beach SC
Posts: 15
UNI or Bikemaster pod filters anyone

Anyone used/ using one of these? Good, bad, indifferent?



Login or Register to Remove Ads
benmb is offline  
Reply With Quote
Old 06-02-2014, 06:23 PM   #2
mainlinecoffee
Senior Member
 
mainlinecoffee's Avatar
 
Join Date: Oct 2013
Location: lexington ky
Posts: 223
Uni is great but it really sucks oiling for the first time,I got that shit everywhere and it was thick and smelled like vodka.
mainlinecoffee is offline  
Reply With Quote
Old 06-03-2014, 08:30 PM   #3
tnastvogel
Junior Member
 
tnastvogel's Avatar
 
Join Date: May 2014
Posts: 24
I use a pod filter. It works fine.

I don't know if there's much mechanical difference between the two. The main thing I think would be the look.

Someone correct me if I'm wrong about that.



Login or Register to Remove Ads
tnastvogel is offline  
Reply With Quote
Old 06-04-2014, 09:51 AM   #4
jonathan180iq
Super Moderator
 
jonathan180iq's Avatar
 
Join Date: Jan 2007
Location: Dalton, GA
Posts: 3,996
I've used lots of UNI filters over the years. They're exactly what they should be. I like 'em.
jonathan180iq is offline  
Reply With Quote
Old 06-04-2014, 12:43 PM   #5
benmb
Junior Member
 
Join Date: May 2014
Location: Myrtle Beach SC
Posts: 15
Thanks guys.. think i'll give uni a shot.

Dumb question before i take airbox off: what's the intake size needed? 52mm, 54?



Login or Register to Remove Ads
benmb is offline  
Reply With Quote
Old 06-04-2014, 05:47 PM   #6
jonathan180iq
Super Moderator
 
jonathan180iq's Avatar
 
Join Date: Jan 2007
Location: Dalton, GA
Posts: 3,996
Go back through the Jetting thread - I believe it's 54, but that's just a feeling. The thread has the correct info in it.

I think I even mentioned a UNI part number in there somewhere.
jonathan180iq is offline  
Reply With Quote
Old 06-06-2014, 08:03 AM   #7
benmb
Junior Member
 
Join Date: May 2014
Location: Myrtle Beach SC
Posts: 15
Uni UP-4200-ST. Got it coming. Thx jon. Any final comments on jetting/pods the 'jetting' thread doesnt cover?
benmb is offline  
Reply With Quote
Old 06-06-2014, 09:21 AM   #8
jonathan180iq
Super Moderator
 
jonathan180iq's Avatar
 
Join Date: Jan 2007
Location: Dalton, GA
Posts: 3,996
You're going to be more satisfied with the throaty sound of not having an airbox than you will with the actual performance increase of the bike. Sometime the extra sound will make you think you're going faster than you are and, personally, that's ok.

Just remember - Main jet first, then mid, then dial in the pilot.
With the main you are looking for best acceleration under full throttle, not stumbles or flat spots.
With the Mid (needle) you want to eliminate flat spots and choose the setting that gives the most fluid power delivery.
Pilot should equal a smooth idle and quick start up. Once you find those little niches, you'll be a happy camper.

You can do a lot of work with the card still on the bike, just turn it sideways.

Be careful of the cap over the needle, as it's plastic and can break.
Don't strip your screws and keep a small pair of vice grips on hand in case you do.
jonathan180iq is offline  
Reply With Quote
Old 06-06-2014, 12:27 PM   #9
benmb
Junior Member
 
Join Date: May 2014
Location: Myrtle Beach SC
Posts: 15
Awesome.

If y'all like, keep an eye out Sunday (Father's Day) and couple days after... my wife asked me what I wanted for Father's Day, I said "one good day to work on bike without any other distractions (we have a 3 yr old and a 6 week old)! I will be hopefully be posting positive results, or a fury of "help me help me"'s...

Thanks again all,
Ben
benmb is offline  
Reply With Quote
Old 06-06-2014, 01:07 PM   #10
raul10141964
Senior Member
 
Join Date: Apr 2012
Location: Elkhart, Indiana
Posts: 369
this is a good reading if you planing on re jet the carb

adjusting the carburetor
https://onedrive.live.com/redir?resi...nt=file%2c.pdf

mikuni carb theory
https://onedrive.live.com/redir?resi...nt=file%2c.pdf

my settings are:
2.5 turns on the pilot
140 main jet
shim on the needle

Last edited by jonathan180iq; 06-06-2014 at 03:02 PM.
raul10141964 is offline  
Reply With Quote
Reply




Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 03:47 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.