cr125 reeds

yeah i seen one on there and it was freakin cheap so i grabbed it. it needs a set of reeds but an intake boot and cage for the cr is just a little cheaper and more than likely they will need reeds too
 
So 2 ppl on this thread have actuall exp with both reed set ups, right? They both say the same thing, vf3's arent up to par.I just did mine and have not ran them or the vforce cages. I spent $45.49 on my reed cage mod.It can be done in a weekend with a file and some sand paper(just a few$). if they are close to comparable to vf3's gain over stock count me in. If work + ingenuity = cheap hp, Why not? my atv is still under $450 total.
 
It's fine to have an opinion, i know you mean well and are trying to help, but to sit there and basically call me a liar when I've used both and you haven't used one is kinda annoying. Why not let the people who are using both make the fair judgment....this is getting out of hand for some reed cage thread, I'm gonna let this simmer. Lol

no i dont not im only saying what i have read and heard about from other peoples feed back and i am only trying to contribute what i have heard.
this is a forum this is what it is for. its kinda like alot of people diss fmf and say its junk but they have never tryed fmf only heard about it from others but is that true ??? not realy but then you hear how great f7 is is that true yes f7 is a great pipe as i have heard from alot of people. alot of the stuf you hear about on this site noone has personly tryed owned done ect.... im just stating my opion on the subject i just think that if your going to disscus something you should look at it from all angles i just wanted to get it out there is all. im not trying to offend anyone or say anbodys wrong but can you show me any real numbers saying that the 125 cage is better dyno chart anything at all would be great. or if you wana give me some info as to why the 125 cage is better than the vf3's besides there bigger. im alays interested in doing more reading


hmmmmmmm i wonder where 8-| i heard it from a pretty werid guy always talking about how he likes men ??????? :o
 
Good score for $60 ive been drooling over the cr vf3's but that might not fit and until i find 1 hella cheap i'll wait. I knew i shoulda waited to post my pics until i secured my other reed set up. now we've created a slew of cr reed vultures preying upon the same reeds i wanted. lol p.s. the cr reed spacer i.d is going to have even less mating surface on the walls of the modded intake. welding it to the jug and then porting may be a good idea, but i'll bet it'll work fine anyway just something to watch for. I want to see some other ppl's cr mod pics!!!
 
Realizing that this mod is down the list, but does anyone have any figures as to how much this mod add? Tough relatively cheap, is the $$ per horse(or response) worth it?
 
if you buy the standard cr125 cage and put it in the blaster itll cost probably 30 bucks and itll be like vf3's on steroids so yes very practical for the money it costs if you have the means and know how to do the required modding of the intake
 
this is some goood info i think i might just do this when my build time comes and thats very soon so be on the look out
 
HONDA CR125 1979-1994 STAINLESS STEEL RACING REEDS | eBay

never seen steel reeds before? but there cheap. seems like they would get weak and break and that wouldnt go good in a motor unlike normal reeds.

That's older technoligy than the blaster motor :o. That's what they used back in the 70s when reeds were first coming out. They're heavy, less responsive and will stress fracture eventually X(:o , and it won't be pretty.
 
Last edited by a moderator:
I put CR125 reeds on the vito's BBK. I was happily cutting away down in there to get everything to fit nice and happy and BAM exactly what CHutzell was warning about happened, I blew through the side of the intake. What should have been a fairly simple operation to take the intake window out a little, turned into a hair-pulling-fest as I used the brazing rods to repair the hole. I ended up with it sealed back and the CR reeds in there but it's uglier than it should have been.

Unless you're building a drag engine, this should be one of the last modifications to be done. It's difficult for replacement boyesen pedals to get maxed out for flow if the stops are removed (think about it, you're drawing in the charge through that 26-38 (depending on what carb youre running mild to wild) carburetor... the stock reed cage only becomes a true flow restriction once you start building a drag engine, not a trail bike.

Oh, I used a standard 3/8" blaster reed spacer also cut out to fit over the reed block. The stock blaster bolt holes DO line up with the CR reed block.
 
I didnt know this thread was here but I started another about my first blaster project here

http://www.blasterforum.com/engine-13/so-they-asked-me-what-blaster-needed-41477/

http://s1191.photobucket.com/albums/z463/fastestboats/blaster/

As you will see I also think that blasters need more reed area but that alone isnt enough the other and (I think smaller bottleneck) is caused by the pistons interfearance with the entire intake tract so the cage alone wont doo much without side ports feeding thru the base of the transfers
None of this is new yamaha has used undersize four port cages in many bike and sled motors since their begining

But in other (pourpose built) engines they always seem to do the right thing
for instance the 1980s IT200 air cooled with a 66mm bore X 57mm stroke (sound familier) Came with a six petal cage and a vm34 and it looks like the designer stood on his head to find room for one pinkie sized side port.
Port timings are very blasterlike but everything is wider and the transfer runners are nearly 50% larger than the blaster

To my point none of this new

Take a look at my cyl tell me what you think

Next up for me is a 76mm piston (if I can find a junk cyl to use) as I dont want to experiment with this one that works so well
 
looks like a blaster jug from what i saw with the exception of the intake mine ended up hella thin on the sides. this one has more sealing area on the walls. i trimmed down my cage to fit in the intake tract and widened the intake ever so carefully. changing up the port timing and workn over the exhaust is where alot of the potential power is hidden in these machines.