I would like to first thanks all the awesome technical help that the members have supplied! And 700v.com.
I got my KFX700 about 5 months ago and started reading all the tech reports and suggestions from the members. My 700 being virtually brand new, I didn't want to tweek it to bad, yet. Over the years I have built many many dirt bikes, KX's, CRF's, WR'fs, etc. And as always you drop 1k-2k and you have a dirt bike the way you should have been able to buy it new. This is what surprised me here, the number of mod's that were minimal to no cost. I put myself on a $500 budget just to see what I could do. I ride 50/50 sand and dirt, so the drag quad set up would not be cost or rider firiendly. I hope some of the newer members that have been sitting in the wings will find value in my tale.
-First I picked up a twin-flo airfilter system from Motorcycle Superstore (there home office is in my home town Medford Oregon). This required no jetting change and the airbox was not opened up. This gave me a little more throttle response, but nothing really noticable. (approx $45)
-Next I picked up a twist grip throttle. Ok, I'm a bike rider at heart (approx $50)
-Then I started looking at the exhaust, as much as I wanted the Muzzy, I did not want to shell out the bucks. So I picked up on Ebay, v700.com has them as well, a White Brothers Race Series, full exhaust. Is not the equal tube length head pipes, but for just over $200, new, I couldn't complain.
-With the exhaust in place, I started in on the carbs. I followed the instructions to polish the slides, shim the needles (#4 brass washer), and cut a loop out of the slide springs. Then I opened up the airbox, cut 15 1" holes, I know everyone says 12, but I'm an over achiever. All of this was 'free'. I then picked up a hand full of jets, between 180-188 at $2.99 each, from Chaparral Motorsports. Total about $30.00. The members had a big veriety of what seemed to work for them, so I wanted to have what I needed to dial in the jets. After playing with several combo's I found 185/185 was the best combo. (1500ft elevation).
-Added a Orange/blue clutch spring, if you have ridden with a clutch most your life, the stall will feel more natural than the 'go' from 0. purchased from v700.com about $30. Someday when I go crazy and deside to see what 1k-2k can get me, I am definitly gonna talk with VForceJohn and get his clutch set up.
-Eliminated water line to carbs, $5 for block-offs and clamps.
Now the end result. I just spent 2 hours on my moto-cross track (yeah another bike thing) and a 300' drag lane we made beside the MX track. My youngest son was riding a TRX400EX, piped, jetted with airbox mod. We tore it up in the rain and mud with not so much as a burp out of the newly awakened Beast. As long as I got traction (drag lane is in grass), the TRX was not even close. The MX track was a different story, the 700's SUV characteristics made it fun but no where as nimble as the smaller TRX.
I really like the sound of the White Brothers Race Series, it isn't as loud as the duals, but has that V8 rumble that gets my adrenaline pumping.
I do have a couple questions for the members out there on additional mods I have seen on here.
-The crossover tube on the carbs? Does someone have the link to a walk-thru or pictures? And why, to what advantage?
-The spark-plug boot mod, why and to what advantage?
-CDI box and/or 6 degree offset key. Do I need them both? Is 6 degrees to much for my bike, or would 4 degree's be better? Is there a preference in CDI boxes?
-Sand paddles. what height/size should I be running? I ride the Oregon dunes out of CoosBay/NorthBend, and as much time is spent trail riding, hill climbing and drag racing.
Total cash on mod's so far about $360. Looks like a CDI/6 degree key could be in the future.
I hope this helps those out there on a budget and just getting by on minimal mechanical skills, like me!
Also, anyone in the Oregon area, I will be in the Boxcar, Horsefall, Saunders Lake area March 20-28th. Would love to see how my Beast stacks up against some real competition!
Thanks again to everyone.