V-Force 3 vs. Boyesen rad valve

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Little Jeff
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V-Force 3 vs. Boyesen rad valve

Post by Little Jeff »

I have a 2000 KDX200 that has all the RB mods, FMF Gnarly pipe and a SA and 607 Boyesen power reeds. Bike runs great, but was wondering if either a V-Force 3 reed cage or a Boyesen rad valve might wake it up a little more. I ride all woods and no racing. What do you guys think. Sometimes I can't leave well enough alone :grin:
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Indawoods
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Post by Indawoods »

V-Force...

forget the RAD... they were never any good on a KDX.
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Little Jeff
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Post by Little Jeff »

Will the V-Force take anything away from the bottom end and what will it do for the top?
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Indawoods
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Post by Indawoods »

Better all around... very noticeable!
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gregp
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Post by gregp »

I have used both the V-Force and the Boyeson Rad valve with good results from both. The Boyeson appears to have a steeper angle on the reeds so you may have to replace them more often, but I never had a problem with mine.
The V-Force works well, and is a little cheaper, so I would go with that one.
2004 Dual Sported KDX200
1999 Ninja 250 (Daughter's)
1996 DR 650 (stock, mostly street use)
gregp
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Post by gregp »

This one is said to outperform both the RAD valve and the V-Force, but I have never tried one.
http://www.mossbargerracing.com/index1.htm
2004 Dual Sported KDX200
1999 Ninja 250 (Daughter's)
1996 DR 650 (stock, mostly street use)
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Indawoods
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Post by Indawoods »

Hmmmm..... same cage and reeds for the KX 125 and the KDX?

I don't know about that....
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SchafferFinney
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Post by SchafferFinney »

I have a question about this topic. If the vforce is so much better, why does fredette swear by the boyeson? is there REALLY that much difference between the two?
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Indawoods
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Post by Indawoods »

Ask him. :wink:
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cornishwrecker220
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Post by cornishwrecker220 »

>|<>QBB<
gregp wrote:I have used both the V-Force and the Boyeson Rad valve with good results from both. The Boyeson appears to have a steeper angle on the reeds so you may have to replace them more often, but I never had a problem with mine.
The V-Force works well, and is a little cheaper, so I would go with that one.
agreed, i have a 2003 220 with a boysen rad valve + reeds & mine works very well, there`s a noticable improvement in the bottom to mid range pull..you need to tweek the jetting slightly (down 1 size on the main jet ) i run a gnarly pipe with a power core 2 silencer, air box lid on with snorkle removed..i replaced the boysen rubber carb boot recently as i split it so i fitted my standard reed cage assembley while i was waiting for my new boot to arrive & seriously noticed the lack of torque that i had with when the rad valve installed!..ive not tried the v force but the boysen im pleased with.
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