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Discussion Starter · #1 ·
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.
Arcane...
 

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I don't have a write-up on the crossover intakes for the carbs but I can help with your other questions.

1) The spark plug modification gives a slightly better throttle response along with easier starting.

2) A 6 degree advance is not too much for your machine, I wouldn't advance anymore than 10 degrees. Some CDI boxes advance the timing as well so you really need to choose if you want to spend the money on a CDI or if you want to use the advance key. Very few people use both.

3) I personally do not think a V should have smaller than 24" paddles on it. The weight of the machine makes smaller paddles (22"s and smaller) dig massive holes in normal sandy conditions. These can be somewhat expensive but I can't tell you how much they are worth it.


You may also want to look into sending your clutch to VForcejohn (VFJ) to have it machined to allow the belt to travel further up the sheaves.
 

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you can get away with 22" paddles if you need to but top end will suffer and you will dig holes. 24" skat trak extremes or edges. you can run a 6* with a cdi, i use a dyna it seems to be the best from what ive been told unless u can find an fst cdi which will raise it i think 5*.
 

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The Clutch work done by VForceJohn or Jim @ JH Machine will really wake your bike up.

I highly recommend it. I know John's work is $200 including return shipping.(Well worth it)

You'll have to ask Jim about his prices.

It is not too expensive for the added performance you gain. I've paid a lot more for a lot less.
 

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Welcome fellow Medfordonion, Do not buy another thing for your V untill you get a UPP crossovers. They are made up in Glendale,Or. go to UPP Racing - Home and give them a call. PM me If you need any more help with this. It was by far the best option for a stock motor that I installed, You feel a big difference and it allows easy jetting.


PS. Just do it!:lol:
 

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The Clutch work done by VForceJohn or Jim @ JH Machine will really wake your bike up.

I highly recommend it. I know John's work is $200 including return shipping.(Well worth it)

You'll have to ask Jim about his prices.

It is not too expensive for the added performance you gain. I've paid a lot more for a lot less.


What he said....hands down the best $200 you can spend on a V.
 

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I'm having the crossover intakes made again for another company. They will be about 190.00 and +6 rwhp should be done by Easter time I figure.

The clutch work I can do as well and I have my own springs that work better than the orange/ blue with less stall. (or more stall) whatever you want.

it's easy to get these things in the high 48-50 rwhp range with just bolt on's.

John
 

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Discussion Starter · #9 ·
Thanks for all the great direction! I installed the UPP crossovers, 6 degree key, spark plug mod and ordered my 24" paddles. I plan to do the VForceJohn clutch build after my spring break ride at NorthBend. I really am having fun riding the V! Don't tell my dirt bike buddy's, they wouldn't understand!
 

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Thanks for all the great direction! I installed the UPP crossovers, 6 degree key, spark plug mod and ordered my 24" paddles. I plan to do the VForceJohn clutch build after my spring break ride at NorthBend. I really am having fun riding the V! Don't tell my dirt bike buddy's, they wouldn't understand!

Hey Arcane, keep an eye out for Badhear, he will be at the KOA during spring break and hopefully riding his greenV.
 

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^^^^^That's SCARY...I was just gonna tell him to PM badhear, as he's form Medford,OR too....:D
 

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Arcane, Did your son do a number to you V last week?:rolleyes:
 
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