SLP Power Pack?

I'm running Powernow front and back. Its similar. I couldn't tell you if it did anything as it was on the bike when I got it. Never really cared to experiment with it. I have to say, compared to my 03 without it, it didn't hurt performance.

yea the powernow is a ring that sits in the throat and is held in there all around, the power pack is just two tabs that rest in the throat (using two small tabs to hold it in there).. i was just kinda iffy on them coming loose and getting sucked in..

it was free so might as well try it

OK, I was trying to figure out what it was from the pic but the pic was too small. And that does sound iffy, with only 2 small tabs. Let us know if you notice any difference.

yea will long as it doesnt get sucked into the motor.. ill post pics of it later and see what u guys think..

I ran these in my 250f when i first got the bike. They work loose after a while and loose their alignment with the slide, and when that happens it throws things all off. I dont think they can really get stuck under the slide, the air boot holds pressure on the tabs of the wings. If you got it for free, installation only takes 10 minutes max. Try em out. I noticed slight difference in bottom end on the 250f. I dont think i would buy them for my smoker.

I ran these on my 250f.. I was concerned as well that they may suck in, but when you put them in the carb, they are a tight fit and the motor would have to suck like porn star to pull them in.. Never had a problem with them, but cant say that they made a noticeable difference...

thnx for all the info! yea ill install it and see.. bikes specs--- 05 yz250, Uni Air filter, doing a new top end tonight/tom, v-force 3 reeds, polishing exhaust as well, DEP Pipe, FMF well see how it works out

here it is..what do u think? sits on the engine side of the carb.. tabs up


Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Similar Content

    • By Mikeybabbel
      Hey guys, I just picked up a running 03 yz125 a few weeks ago and upon tearing down the top end, I noticed the cylinder head looks a little beat up. Is it possible to just clean it up or am I better off just buying a new one? Thanks guys. 

    • By faizakhtar125
      Hey guys I just bought a bike last night. So the seller said the bike will turn on but then die. We didn't try it because it was really late at night and it was raining (seat was wet). But he said if you bump start it, it will turn on and ride. So what do you think the problem is? I just want to make sure it runs... I probably won't be able to bump start it till Saturday (rain)... It's a four stroke, and I know absolutely nothing about them. Thanks.
    • By neonmarine
      Hey guys, 
      I've used this forum as a "guest" for awhile now and I thought I'd share my build now that it's all coming together.  The primary purpose of this project is to help me train for roadracing my 2009 R1 at lower speeds as well as giving me a cheap alternative to racing the big bike. 
      Here's what she looked like when I picked it up from a local shop.  Paid $800 cash for the bike as you see it with 17' rims, FMF pipe, EBC 250mm front rotor and clip on handle bars.

      Fits PERFECT!

      Shake down run at the Herrin Compound last summer:

      As she sits today:

    • By 125 yamaha guy
      i bought my yz125 from a dealer and they said that the clutch was broken so i bought it and it worked fine it would run move and everything and then it started to act up and now only first gear works barely though. when you put it in first it acts like its bogging down but its not and when you go into gears 2-5 it wont move i dont know whats wrong with it im assuming the clutch is slipping or something if you know please leave me a comment