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Discussion Starter · #1 ·
I just installed vforce 3 reeds on my 99 kx250 @ idle it sounds fine but at low rpms (3-5 Mph) they seem to be making a slapping noise as the rpms go up the noise goes away. I have never had this problem until I installed them today. is this normal? Also there was no reed stop on them like on my stock reed cage there is a 1/4 inch of plastic across the top I called the manufacture and they said that was the reed stop. the reeds I installed look just like these.

Google Image Result for http://www.procycledepot.com/uimages/p_images/v_force/V_force_3_reed_valves.jpg
 

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you mean pop, pop, pop, pop as it idles? Sounds like a 2 stroke to me, especially if you have a nice thin aftermarket pipe like FMF.

There are no reed stops that stick way the f out.
 

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Discussion Starter · #3 ·
at about 3-5 mph it's like a slapping sound very distinct sound. If you look at the link thats what the reed stop looks like. nothing compaired to the factory reed stop. What I am asking is this normal for the vforce 3 reeds to make that sound. My factory reeds never made this sound
 
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