v force reeds?


19 replies to this topic
  • andrewyz250

Posted February 20, 2008 - 10:52 AM

#1

does anybody have them on a yz250? did you notice a difference in the horse power?

  • bikedude127

Posted February 20, 2008 - 11:12 AM

#2

Not so much more power but much better throttle response, gives the "seat of pants" feeling of more power.. :) But worth retail??? Eh?? Money better spent on suspension :applause:

  • BriAnJG054

Posted February 20, 2008 - 12:34 PM

#3

I have vforce3 reeds and I can tell you right now to save your money. They did just about nothing. Maybe I am just not fast enough to tell ???? :applause:

  • DragonSpeedTriple

Posted February 20, 2008 - 03:36 PM

#4

I have a 98 ZY250 and I love my v-force 2 reeds. Excellent throttle response, and that crisp crack off idle. Also helps that I have it jetted just about perfect. I think they are worth the money. I have installed them in other bikes at my shop and the customers have all been more than happy.

  • mx617

Posted February 20, 2008 - 07:53 PM

#5

I noticed much more difference with a pipe and silencer than with the V-Force 3. Next pinger I have am going to try Boyesen not V-Force.

  • FFRacing79

Posted February 20, 2008 - 09:02 PM

#6

I noticed much more difference with a pipe and silencer...


That is cause you paid more for the pipe and silencer! Tdub

  • dtkiko

Posted February 21, 2008 - 02:54 AM

#7

[COLOR="Blue"]ZERO! nothing as far as my '03 125 is concerned... and all this VF-3 mania gave me was a wet sparkplug and hard starting.... these so-called 4 petal thing aren't durable, they tend NOT to sit properly in the cage under frequent WOT and screaming revs. the stock reeds are better.

therefore, the VF 3 is a NO-NO with my blue 250... better allot a far cheaper money in head mod[/COLOR]

  • 2strok4fun

Posted February 21, 2008 - 08:31 AM

#8

On my 98 ktm it was really nice, throttle response was awsome and improved low end feel, it did require leaner pilot and needle settings over stock.

I havent heard enough "good" on the yz to consider it.

  • bikedude127

Posted February 21, 2008 - 08:34 AM

#9

[COLOR="Blue"]ZERO! nothing as far as my '03 125 is concerned... and all this VF-3 mania gave me was a wet sparkplug and hard starting.... these so-called 4 petal thing aren't durable, they tend NOT to sit properly in the cage under frequent WOT and screaming revs. the stock reeds are better.

therefore, the VF 3 is a NO-NO with my blue 250... better allot a far cheaper money in head mod[/COLOR]


I noticed this too Kiko.. I went leaner, cleaned it up a lot.. But I also noticed that there is always a small gap in the reeds when the bike is not running.. Doesnt seem to effect it though.. :applause:

  • HodaddyB

Posted February 21, 2008 - 09:34 AM

#10

Not so much more power but much better throttle response, gives the "seat of pants" feeling of more power.. :banghead: But worth retail??? Eh?? Money better spent on suspension :applause:


I just put one on my '02, and I have to echo the above post. I have an FMF Fatty and Shorty Silencer as well, but they've been on there for a while. The V-force certainly didn't hurt anything, and I gotta say (in contrast to what others have posted) my silencer has less spooge on it since I have the V-Force on there. I considered leaning it before I rode, but it's running very clean (although it was before too). :cry:

Also FWIW.....my engine is bored and stroked too.:)

  • bikedude127

Posted February 21, 2008 - 09:48 AM

#11

Hodaddy, I think the fact that you are getting less spooge is because the increased reed surface area helps atomize the fuel more efficiently..

Who did your crank/rod stroker work??

  • tjp26

Posted February 21, 2008 - 10:25 AM

#12

I had a Boyesen Rad Valve on my '05 YZ 250 and I bought a used '06 YZ 250 (6 hours on it) last year and it had the VForce3 on it, I am going back to a Rad Valve this year. I do know that the Rad Valve with the spacer added some low end grunt to the motor and also seemed to gain power thoughout the entire powerband.

Anyone want a cheap VForce for their YZ250?

  • stimps

Posted February 21, 2008 - 11:12 AM

#13

Just bought a brand new Rad valve for the 05. I had one from an 04 and It always seemed better than the vforce 3 that I also have. The 05 valve is a lot different internally than the 04 so looking forward to trying it out saturday. Will post results.

  • HodaddyB

Posted February 21, 2008 - 12:20 PM

#14

Hodaddy, I think the fact that you are getting less spooge is because the increased reed surface area helps atomize the fuel more efficiently..

Who did your crank/rod stroker work??


Concerning the V-Force/less spooge theory...........could be. I can't think of anything better right now.

On the stroker............Vertucci Performance Equipment (VPE).:smirk:

  • mdbr

Posted February 21, 2008 - 05:18 PM

#15

Don't waste your money on V-Force Reeds. I bought them and the reeds did not seat properly. Because they did not seat properly, they caused the bike to run way too rich and it was constantly fouling spark plugs. I took the reeds out and put the stock ones back in and the problem went away. Buy a good pipe or other mod. I've had good luck with the DEP pipe. It costs a little more than the PC or FMF but then again it also works a lot better than they do. My 2 cents.

  • Luigic81

Posted February 21, 2008 - 09:23 PM

#16

I like the stock ones better, they seemed to rob my high rpm output, and be more for low rpms. Not what pingers were made for :smirk:

  • dtkiko

Posted February 22, 2008 - 02:48 AM

#17

Don't waste your money on V-Force Reeds. I bought them and the reeds did not seat properly. Because they did not seat properly, they caused the bike to run way too rich and it was constantly fouling spark plugs. I took the reeds out and put the stock ones back in and the problem went away.


[COLOR="blue"]seems like we're not the only ones who had completely unacceptable outcome from this so-called high tech VF 3 reeds. i couldn't believe i spent US$245, including shipment, on that piece-of-garbage for my 125 :) [/COLOR]


Buy a good pipe or other mod. I've had good luck with the DEP pipe. It costs a little more than the PC or FMF but then again it also works a lot better than they do. My 2 cents.


[COLOR="Blue"]seems like there's a growing numbers of (johnny) DEP fans here.. and good thing i didn't take the full FMF set up once offered to me for my 250 :smirk: [/COLOR]

  • HodaddyB

Posted February 22, 2008 - 05:09 AM

#18

Hmmmm, I looked at my reed cage assembly before installing and didn't see any gaps at all. I'm curious about the inconsistency.

I'm not trying to stick up for them........mine came w/ a recommendation from a friend w/ a dyno, and he gave me a deal. I was going to try something anyway. I wonder if it's one of those instances where the dyno shows more of a gain, than the seat-of -the-pants does.

For full retail, though, they SHOULD give fantastically fabulous results, but it wouldn't be the first wonder gadget to leave one's hopes deflated.

  • mks yz

Posted February 22, 2008 - 05:12 AM

#19

ok, i found out the hard way about vforce in the snowmobile industry, they are not reliable for one. but more importantly they use the same design for every application they just change the manifold pattern and size it to fit. We have a dyno and on certain engines that had a poorly designed stock reed cage and reed petals the vforce showed a definite improvement, however stock reeds aren't so bad anymore so the vforce are not doing much esp. with a late model yz 250 you might even see a loss somewhere. Now for the rad valve, this is a good product each one is designed for the specific engine its sold for. you will almost always see improvements throughout the rpm range. they are also durable and not only provide you with a reed cage but an entirely aluminum intake vs. the plastci vforce. you will have to rejet usually down a couple on the main. don't forget i said the boyesen rad valve not just the replacement reeds in a stock cage i have no experience with those. i hope this helps good luck

  • BriAnJG054

Posted February 22, 2008 - 12:43 PM

#20

ok, i found out the hard way about vforce in the snowmobile industry, they are not reliable for one. but more importantly they use the same design for every application they just change the manifold pattern and size it to fit. We have a dyno and on certain engines that had a poorly designed stock reed cage and reed petals the vforce showed a definite improvement, however stock reeds aren't so bad anymore so the vforce are not doing much esp. with a late model yz 250 you might even see a loss somewhere. Now for the rad valve, this is a good product each one is designed for the specific engine its sold for. you will almost always see improvements throughout the rpm range. they are also durable and not only provide you with a reed cage but an entirely aluminum intake vs. the plastci vforce. you will have to rejet usually down a couple on the main. don't forget i said the boyesen rad valve not just the replacement reeds in a stock cage i have no experience with those. i hope this helps good luck


thanks for the info. I will give the rad valve a try when the v force wears out. I hope I dont waste my money again.





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