I would like more power for my Scrambler 400 2X4, but I want the biggest bang for my buck. I looked into pipes and clutches, but they have tradeoffs (lose top-end, louder, etc.) and they're expensive. I was looking through Hot Seat Performance and found some less expensive performance boosters. I am curious about the difficulty of installation and adjustment and the positives and negatives of each (especially gains and TRADEOFFS). I am especially interested in information about K&N filters (do these really make a difference), carbon fiber reeds (slip in factory cage), V-force reeds (replace the factory cage), UFO's (ultimate flow optimizer), and DynoJet Kits. Any information you can provide, especially real world experience, would be appreciated.

 

RCR Stage 1 kit

 

Hunter,

I agre with Weedy on the RcR kit. I put one on my Sport 400 and it's a totally different bike, all for $320. I'm sure other members are sick of me singing my praises of the RcR kit. But, if you are only going to do one thing to your quad, and believe me, it's all you have to do, put the kit on. If not, a K&N air filter will do wonders to your machine. Better throttle response and overall smoother throughout.

SportKod
99 Polaris Sport, too many mods to list
00 Yamaha Kodiak

 

How difficult is the RCR kit to install? How does the rcr air filter kit compare to a K&N? What does the carburetor jetting do? Are there any compromises (fuel economy, low end, high end, top speed, driveability)? Thanks.

 

Hunter,

the kit took me 2 1/2 hrs to install and I'm no Mr Goodwrench. The directions are very clear. You modify the whole air box, the kit includes a uni-filter. Again, this is very easy. The jetting is also very easy as you have the air box out and the carb is right there. I didn't notice a big difference in fuel consumption. You just laid out 4-6K on a bike, who cares about a buck or three? You'll be too busy hanging on for dear life to worry about your gas. I strongly recomend RcR products. I learned about them in this forum and am glad I did. Rick will answer any questions you have at 618-644-3211.

 

Don't waste your $$$ on the cheap tricks until you get the basics done first. A pipe, clutch spring, airbox are when you need to start on that two stroke. That's where you get your most bang for the buck.

After that, you can add whatever as you will have a good base to build on. I've tried a few RcR kits, they work well.

There's a nice article on exactly that subject in the April 2000 issue of ATV Sport mag. Check it out.

<A HREF="http://www.godigital-design.com/96Polaris.html">Schultz Motorsports</A>

 

With the RCR stage 1 Polaris special you have
everything to gain and nothing to lose. They
aren't too hard to install and Rick is just a
phone call away, I called him 3 times myself!

If the silencer that comes with the kit is too
loud for you put your old one back on. Or you
can order everything separately. Start with the
airbox, larger jet, and clutch spring. If that's
not enough get the pipe, there's something there
to please everybody. But as you already know
staying stock isn't an option or you wouldn't
be wondering about it!

Andy Z. '98 Scrambler 400 RCR stage 1.

 

Sorry, double post.