Loved listening to the explanation of a 2stroke at the end of the video. Nothing but proper raw information and learning, no nonsense trying to make it entertaining. Just some advice, don't ever stop this channel, I don't even bother listening to other channels for mechanical info anymore
LoL. Thats how I felt on this day. I stayed up late watching Supercross and couldn't go to sleep fast enough afterwards. Woke up early and headed to the track.
That's awesome you made contact with Stuck Nutz. I'm really hoping you develop a good working relationship with them and they become a sponsor of your channel. Also look into Blud lubricants, they seem like a newer company really interested in the motorcycle industry. I'd be interested in hearing your opinion of the products and their company. They might be another company you could get a sponsorship from in the future. I know they're sponsoring The Motocross Network TH-cam channel and certain privateer racers. Good luck!!!
Right on. Yeah I emailed Stuck Nutz after my made my purchase and they replied right away. Solid customer support for sure. I just checked out Blud site, its cool they sell "racing" oils. This usually means it flys under the EPA radar and can have all the good stuff in the oil like Zinc and stuff because its not meant for use on the road. This is one of the reasons I use Shell Rotella, it has all the good stuff.
Great video, very well explained. Beavis is like an old skool 125, all top end. I love it when he comes in the shop in stealth mode and sizes up a silent ankle attack......
❤ LOVE THE CONTENT,APPRECIATE THE TIME YOU USED FOR THIS COMPARISON.TEST ALL MODS AS YOU BACK TO BACK .SOME MESSERS (SQUIDS) SAY ITS BETTER JUST BECAUSE THEY HAVE GOT A NEW PRODUCTS
Thanks! And yeah that's true. Theres so much "snake oil" out there and my goal is always to have the best performing bike I can. Nothing gets a pass on my bike unless it test out to be true and good lol. I like to be able to hand my bike to someone and they come back and say "holy cow it runs strong!"
IM A MX MECHANIC FROM ACROSS THE WATER (GB) USED BOYESEN PRODUCTS FROM THE DUAL STAGE PETAL KITS TO RAD VALVE .THE VFORCE ISNT A NEW DESIGN,EARLY HUSKYS USED IT DUAL REED DESIGN .ALWAYS FELT THE BOYESEN TO FEEL STRONGER IN COMPARISON ,BUT BOTH WORK .HAD ISSUES WITH PETAL SEALING & QUALITY OF MATERIAL WITH THE V-FORCE .BUT USUALLY THERE ARE NO JETTING CHANGES WITH IT (POSSIBLY REDUCE MAIN WITH THE RAD VALVE) INTERESTING VIDEO , THERES ALWAYS BEST TO TEST BACK TO BACK AS THIS TEST .EXCELLENT PROCEDURE 👍✅💃
I would love to have you test the new 4X by moving the spacer from between the cylinder and the reed cage to between the reed cage and the manifold. In other words move the spacer from the front of the reed cage to the back of the reed cage. The front of the reed cage being the side that the reeds stick out of. I'd be interested to see if you could get the best of both worlds just by moving the spacer. Since you get better bottom end without the spacer and better top and mid with the spacer maybe by putting the spacer at the back of the reeds you get the increased bottom end when the reeds are closest to the cylinder and the increased top and mid with the carb spaced further from the cylinder. I'd also like to see you do the same test with the version 3 reed cage. I don't know if it would word but I think it would make interesting videos. Another great video!!!
Hello. I would need a spacer with the inner hole the same size as the intake port of the reeds for that to work ok. But I'm thinking it wont do too much. It will have the pre compression of using the reeds without the spacer but will move the carb further back from the reeds some. What I am thinking about is a mid size spacer. Like taking the stock spacer and having it shaved in half. Best of both worlds. They might even sell one someone, gotta look around some.
I know this video is about reeds but I just learned something in this video my 1991 yamaha wr250z (yz250 with a wide ratio transmission) all stock 3xk head has a higher compression ratio from factory then a stock 2005 yz250 the 05 compression ratio is 10.6:1 the 91 compression ratio is 10.9:1 I know it’s only higher by a few but that’s crazy the newer the bike the lower the compression ratio is going to be
@@billjohn2707 Hello. The YZ125 is the original seat at 118 hours, holding up well. The YZ250 had the seat replace somewhere mid life due to a rip in the cover and foam.
I would have spent the time richening up the bottom end for the 4X without the spacer if I was planning on using it that way for sure. But I am looking for more top end than that so I focused more on the 4X with the spacer. I will be playing with some mild jetting with that now but its so close the way it is I might not be able to find better.
man, you know your shit around these bikes! As an experienced mechanic, which motocross bike would you say has lowest running costs and best reliability in long term perspective?
Thanks. Hmm. Well overall the Yamaha's YZ lineup are currently the most reliable. Right behind that would probably be the KX450. With the Yamahas the two bikes that kinda tie out overall but for different reasons is the YZ450 and the YZ125. I'm going to say the YZ450 is the least amount of maintenance from week to week and just holds up well overall but can be expensive if a major repair is ever required as most four strokes are. The YZ125 can nickel and dim you week to week needing 2 cycle oil and pistons changed out more frequently but are so cheap purchase the bike as a whole, super easy to work on, and parts are the cheapest of them all.
Interesting! Regarding the initial comparison, I wonder if altering the reed block to match the curvature of the boot would somehow be equivalent to or have a similar effect to porting? Like if smoothing out and matching up all the surfaces properly may or may not have an effect on the overall power delivery? or, it could just create mad problems either way I dont have enough spare parts to try it.
I thought the same thing and dont want to screw up a good set of reeds trying to figure it out. So I have decided to instead try my best to match the intake boot to the reed cage of the 4X. I have ordered up a intake boot to do the testing on.
@@UpAllNight91 oh nice! I would be very interested to see the results of that testing. Finger crossed and good luck with it. Thanks and greeting from down under. Shoutout to Bevis also! You are a rockstar of a rooster! Love that hair dude!
@@chris929rr7 Hello Chris. 😅 Beavis is the man, I mean rooster! lol. I wish I had beavis'es hair lol. As soon as the new intake boot comes in I will give it a shot. Hoping it does well too. I will put a video update up on that.
Weird that you aways say you feel more bottom end without the spacer and more top end with the spacer when all the magazines say the exact opposite and aftermarket reed spacers have always been called torque spacers because they claim to increase bottom end power.
I know thats what the mags have said and they call them torque spacers and all. But engine tuners have been reporting for years that increasing the pre-compression will increase bottom end power and lowering the pre-compression it will boost top end power. Removing the spacer will increase the pre-compression. Also on the YZ250 removing the spacer will put the reeds more over the boost port, blocking it off just a hair. I have gone back and forth and can say from experience, its not even a guessing game, its a night and day difference. Also its been reported by multiple builders on dynos that YZ250 looses 1HP without the spacer, every time. Derek Harris on this forum thread linked here www.vitalmx.com/forums/Moto-Related,20/YZ250-Stock-Pipe-with-PC-R304-Combo,1349626?exclusive_forum_user=false&page=0 said "My dyno consistently reports removing the spacer looses 1 hp from bottom to top on the yz. I continue to read people say otherwise - but havent seen anyone publish a test showing removed its better. Ill retest it next yz I have for dyno work and try to republish it- but just throwing it out there on my experience with it. Ive done somewhere around 3000 yz250 dyno pulls to date.... and tested just about everything you can name." Also if you go to page 2 of that forum thread about halway down the moto lab posted a dyno graph showing both with the spacer and without. Without spacer lost 1.5 HP across the board with no real gain. I did butt dyno myself but you might have to try it for yourself to see for yourself.
I could be. But sometimes that just happens. In theory coolant should keep things from rusting or corroding. I'm not sure what causes the cylinder studs to rust sometimes. They are replaceable though so if its bad enough I will just replace it.
The 4X is the current. V Force says on their site... "NOTICE: The V307A for the Yamaha YZ250 and YZ250X has been replaced by the new V4X07EM VFORCE4X." . They still sell the 3 currently but I imagine once its out of stock they wont anymore.
I've got an 89CR250R. I was wondering what reeds you would suggest for that bike. I've got the boyesen dual-stage in it right now. Also do you suggest rejetting it?
Hmm. The boyesen dual statge reeds are kinda period correct for that bike if you wanted t0 keep it kinda vintage stick with them or even a rad valve. But if I was looking to update its performance I would go with the V force. I do like the V force.
@@UpAllNight91 Thanks for the reply and honestly the bike is not stock. I have updated the front suspension to 2006 CRF250R front forks. And I'm looking for a little bit better performance.
@@zachfarkash6430 Ahh right on. Yeah the rad valve is more of a boost in mid torque and the V force is more of a boost in crispness and top end revs, base on what I noticed on the YZ250 and the YZ125
Hello. I like the v force better but thats me. I do have two videos covering these. One for a YZ250 here th-cam.com/video/eREv5MiXo3k/w-d-xo.html and one for the YZ125 here th-cam.com/video/lWXGysNNWxs/w-d-xo.htmlsi=_xH-QS5qoCqDuWn5
The 4R's have full size reed stops. The 4X does not have reed stops. However they never made the 4R for the YZ250. Only the 3's and the 4X's are available for the YZ250
@@SethMacgillivary Semi is good. Yamalube is semi and it does well. K2 is full synthetic and is good too. K2 is more of a mid grade as far as flash point (240 flashpoint). Its not as high as motul 800 or caster 927 (up in the 400's) but also not as low as some of the others out there. (down in the 100's) Its a good over all oil. I'm am interested in trying out belray HR-1 but it seems a little costly vs K2 so not sure yet.
@@SethMacgillivary Its said too low burns up too fast and is consumed from the crank area quickly and too high can cause loading up, excessive smoke, and stuff like that.
@@UpAllNight91 the sound of it riving yes. But in top i couldnt tell if it was maxed out or you let out. You said it felt you lost top end with V4s and spacer
I have ear for engine rev but dont go based on mine. I havnt had budget to fix junk bikes up, neither buy one used and work on in the last 10 years. Also ive never had race reeds Your videos been inspiring and learning
@@justinArk-Box Oh ok. Thanks Justin. Yeah these things are expensive. If I didnt work on them myself not sure I could afford them. Dont think I ever paid a shop, not even once in my whole life. Had to do it all on my own and learned as I went lol
Great comparison, in my day it was Boyesen twin petal reeds.There was a noticeable difference and the stock reeds were metal engine killers. For some reason every time beavis wattles into the shop I think of Don King.😮 🏜👍
Thanks! Thats crazy reeds use to be steel. I have seen that before. I can imagine when they break they tear things up. Don King woke me up too early this morning at my window.
@@mikebishop6095 I bet. I had a 1988 CR125 back in the day with the dual stage and they worked well. I surely had to change the jetting for them but them where good times. I also had a 1996 RM125 that had the original Vforce 1 on them lol
Weird that you find the using the spacer adds top end, every magazine test I've ever read in the last 35 years including yz250 ones always say the exact opposite, and ive seen tons of aftermarket Reed spacers called "torque spacers" because they add bottom end power and take away top. I've never seen a reed spacer claim to add top end......ever.
@@johnlastname2895 Yes I have seen and heard it go both ways throughout the years. I listened to the theories of both. But when I try them back to back its pretty clear no spacer does make more bottom end power.
![[TH] 2024 PMGC League | Survival Stage วันที่ 1 | PUBG MOBILE Global Championship](http://i.ytimg.com/vi/FVFT-PFwU80/mqdefault.jpg)
Loved listening to the explanation of a 2stroke at the end of the video. Nothing but proper raw information and learning, no nonsense trying to make it entertaining. Just some advice, don't ever stop this channel, I don't even bother listening to other channels for mechanical info anymore
Thanks for the awesome compliments! I will keep it going for as long as I can!
Thank you for that great deep YZ-tech-content!👍 Best regards from germany ✌
Hello. Gregor in Germany. Your welcome and thanks for watching!
I do 3 hard laps and my track day is over lol… u just got that energy to ride 🤟🏽
LoL. Thats how I felt on this day. I stayed up late watching Supercross and couldn't go to sleep fast enough afterwards. Woke up early and headed to the track.
The best it's Boyesen. 👌😎✌
👍
That's awesome you made contact with Stuck Nutz. I'm really hoping you develop a good working relationship with them and they become a sponsor of your channel. Also look into Blud lubricants, they seem like a newer company really interested in the motorcycle industry. I'd be interested in hearing your opinion of the products and their company. They might be another company you could get a sponsorship from in the future. I know they're sponsoring The Motocross Network TH-cam channel and certain privateer racers. Good luck!!!
Right on. Yeah I emailed Stuck Nutz after my made my purchase and they replied right away. Solid customer support for sure. I just checked out Blud site, its cool they sell "racing" oils. This usually means it flys under the EPA radar and can have all the good stuff in the oil like Zinc and stuff because its not meant for use on the road. This is one of the reasons I use Shell Rotella, it has all the good stuff.
Great video, very well explained. Beavis is like an old skool 125, all top end. I love it when he comes in the shop in stealth mode and sizes up a silent ankle attack......
Hahahah! For sure he does that lol. I gotta keep my eyes and ears opened all the time
Love your channel!! To my ear, it sounds like the V4's gets in the revs much quicker than the V3's! Right from the low end on up!
Thanks and right on! I'm surely pumped to go ride these V4's again this weekend. I do like them 😉
❤ LOVE THE CONTENT,APPRECIATE THE TIME YOU USED FOR THIS COMPARISON.TEST ALL MODS AS YOU BACK TO BACK .SOME MESSERS (SQUIDS) SAY ITS BETTER JUST BECAUSE THEY HAVE GOT A NEW PRODUCTS
Thanks! And yeah that's true. Theres so much "snake oil" out there and my goal is always to have the best performing bike I can. Nothing gets a pass on my bike unless it test out to be true and good lol. I like to be able to hand my bike to someone and they come back and say "holy cow it runs strong!"
IM A MX MECHANIC FROM ACROSS THE WATER (GB) USED BOYESEN PRODUCTS FROM THE DUAL STAGE PETAL KITS TO RAD VALVE .THE VFORCE ISNT A NEW DESIGN,EARLY HUSKYS USED IT DUAL REED DESIGN .ALWAYS FELT THE BOYESEN TO FEEL STRONGER IN COMPARISON ,BUT BOTH WORK .HAD ISSUES WITH PETAL SEALING & QUALITY OF MATERIAL WITH THE V-FORCE .BUT USUALLY THERE ARE NO JETTING CHANGES WITH IT (POSSIBLY REDUCE MAIN WITH THE RAD VALVE) INTERESTING VIDEO , THERES ALWAYS BEST TO TEST BACK TO BACK AS THIS TEST .EXCELLENT PROCEDURE 👍✅💃
Thanks! Interesting hearing your take on it. The Vforce petals do seem to get tired and need a replacing about every 50 hours it seems.
Why are you yelling???
I would love to have you test the new 4X by moving the spacer from between the cylinder and the reed cage to between the reed cage and the manifold. In other words move the spacer from the front of the reed cage to the back of the reed cage. The front of the reed cage being the side that the reeds stick out of. I'd be interested to see if you could get the best of both worlds just by moving the spacer. Since you get better bottom end without the spacer and better top and mid with the spacer maybe by putting the spacer at the back of the reeds you get the increased bottom end when the reeds are closest to the cylinder and the increased top and mid with the carb spaced further from the cylinder. I'd also like to see you do the same test with the version 3 reed cage. I don't know if it would word but I think it would make interesting videos. Another great video!!!
Hello. I would need a spacer with the inner hole the same size as the intake port of the reeds for that to work ok. But I'm thinking it wont do too much. It will have the pre compression of using the reeds without the spacer but will move the carb further back from the reeds some. What I am thinking about is a mid size spacer. Like taking the stock spacer and having it shaved in half. Best of both worlds. They might even sell one someone, gotta look around some.
Man, I always learn so much. I am thinking that carbon build up in my PC pipe is negatively affecting performance. Great video
Thanks man! Yeah I like my pipes cleaner too.
I know this video is about reeds but I just learned something in this video my 1991 yamaha wr250z (yz250 with a wide ratio transmission) all stock 3xk head has a higher compression ratio from factory then a stock 2005 yz250 the 05 compression ratio is 10.6:1 the 91 compression ratio is 10.9:1 I know it’s only higher by a few but that’s crazy the newer the bike the lower the compression ratio is going to be
Yeah, trying tio get them for pump fuel friendly in the later years for sure.
Love the videos brother what seats do you have on the yz’s? Are they 2022 oem?
Thanks Bill. I'm curently using the stock seats on my 2018 YZ250 and my 2021 YZ125. They grip good enough for the most part and hold up pretty well.
@@UpAllNight91 after i asked i realized 22+ shouldn’t fit but I can’t believe how good they look, looks like you bought all new ones recently.
@@billjohn2707 Hello. The YZ125 is the original seat at 118 hours, holding up well. The YZ250 had the seat replace somewhere mid life due to a rip in the cover and foam.
You should have went with the V4 no spacer and rich in your Carb up and see how it feels
I would have spent the time richening up the bottom end for the 4X without the spacer if I was planning on using it that way for sure. But I am looking for more top end than that so I focused more on the 4X with the spacer. I will be playing with some mild jetting with that now but its so close the way it is I might not be able to find better.
man, you know your shit around these bikes! As an experienced mechanic, which motocross bike would you say has lowest running costs and best reliability in long term perspective?
Thanks. Hmm. Well overall the Yamaha's YZ lineup are currently the most reliable. Right behind that would probably be the KX450. With the Yamahas the two bikes that kinda tie out overall but for different reasons is the YZ450 and the YZ125. I'm going to say the YZ450 is the least amount of maintenance from week to week and just holds up well overall but can be expensive if a major repair is ever required as most four strokes are. The YZ125 can nickel and dim you week to week needing 2 cycle oil and pistons changed out more frequently but are so cheap purchase the bike as a whole, super easy to work on, and parts are the cheapest of them all.
Bevis checking shit out, great comparison with a black coffee.
Ohh yeah! Thanks! He woke me up this morning too, right at my window lol
Interesting! Regarding the initial comparison, I wonder if altering the reed block to match the curvature of the boot would somehow be equivalent to or have a similar effect to porting? Like if smoothing out and matching up all the surfaces properly may or may not have an effect on the overall power delivery? or, it could just create mad problems either way I dont have enough spare parts to try it.
I thought the same thing and dont want to screw up a good set of reeds trying to figure it out. So I have decided to instead try my best to match the intake boot to the reed cage of the 4X. I have ordered up a intake boot to do the testing on.
@@UpAllNight91 oh nice! I would be very interested to see the results of that testing. Finger crossed and good luck with it. Thanks and greeting from down under. Shoutout to Bevis also! You are a rockstar of a rooster! Love that hair dude!
@@chris929rr7 Hello Chris. 😅 Beavis is the man, I mean rooster! lol. I wish I had beavis'es hair lol. As soon as the new intake boot comes in I will give it a shot. Hoping it does well too. I will put a video update up on that.
Awesome explained video
Thanks!😊
Wonder if the company tests these with a dyno
Not sure, but I imagine if they did they would note they usually make a little more HP with the spacer
Weird that you aways say you feel more bottom end without the spacer and more top end with the spacer when all the magazines say the exact opposite and aftermarket reed spacers have always been called torque spacers because they claim to increase bottom end power.
I know thats what the mags have said and they call them torque spacers and all. But engine tuners have been reporting for years that increasing the pre-compression will increase bottom end power and lowering the pre-compression it will boost top end power. Removing the spacer will increase the pre-compression. Also on the YZ250 removing the spacer will put the reeds more over the boost port, blocking it off just a hair. I have gone back and forth and can say from experience, its not even a guessing game, its a night and day difference. Also its been reported by multiple builders on dynos that YZ250 looses 1HP without the spacer, every time. Derek Harris on this forum thread linked here www.vitalmx.com/forums/Moto-Related,20/YZ250-Stock-Pipe-with-PC-R304-Combo,1349626?exclusive_forum_user=false&page=0 said "My dyno consistently reports removing the spacer looses 1 hp from bottom to top on the yz. I continue to read people say otherwise - but havent seen anyone publish a test showing removed its better. Ill retest it next yz I have for dyno work and try to republish it- but just throwing it out there on my experience with it. Ive done somewhere around 3000 yz250 dyno pulls to date.... and tested just about everything you can name."
Also if you go to page 2 of that forum thread about halway down the moto lab posted a dyno graph showing both with the spacer and without. Without spacer lost 1.5 HP across the board with no real gain. I did butt dyno myself but you might have to try it for yourself to see for yourself.
Yz 125 one rusty front left cylinder stud other 3 are shiny and new looking would that be a coolant leak around it?
I could be. But sometimes that just happens. In theory coolant should keep things from rusting or corroding. I'm not sure what causes the cylinder studs to rust sometimes. They are replaceable though so if its bad enough I will just replace it.
Is the “X” version like a woods riding version? No “R”? Or is it just the “4X” is the current and only VForce for the yz250?
The 4X is the current. V Force says on their site... "NOTICE: The V307A for the Yamaha YZ250 and YZ250X has been replaced by the new V4X07EM VFORCE4X." . They still sell the 3 currently but I imagine once its out of stock they wont anymore.
Does old packing make bike run leaner?
Not really sure if it makes it run leaner or not. But I can say they surely run better with good packing.
I've got an 89CR250R.
I was wondering what reeds you would suggest for that bike.
I've got the boyesen dual-stage in it right now. Also do you suggest rejetting it?
Hmm. The boyesen dual statge reeds are kinda period correct for that bike if you wanted t0 keep it kinda vintage stick with them or even a rad valve. But if I was looking to update its performance I would go with the V force. I do like the V force.
@@UpAllNight91 Thanks for the reply and honestly the bike is not stock. I have updated the front suspension to 2006 CRF250R front forks.
And I'm looking for a little bit better performance.
@@zachfarkash6430 Ahh right on. Yeah the rad valve is more of a boost in mid torque and the V force is more of a boost in crispness and top end revs, base on what I noticed on the YZ250 and the YZ125
@UpAllNight91 Gachia thanks for the info I'm looking to add more bottom and torque to my bike. I do a lot of slow single track.
And some hard enduro
@@zachfarkash6430 Right on. Yeah for that I would think the rad valve might do you good.
Who is better boysen or vforce
Hello. I like the v force better but thats me. I do have two videos covering these. One for a YZ250 here th-cam.com/video/eREv5MiXo3k/w-d-xo.html and one for the YZ125 here th-cam.com/video/lWXGysNNWxs/w-d-xo.htmlsi=_xH-QS5qoCqDuWn5
Hey bud Is there a way to dm you for some info on my bike
Yes sir, you can email me at upallnight91@hotmail.com
What’s the difference between the 4 and 4X?
The 4R's have full size reed stops. The 4X does not have reed stops. However they never made the 4R for the YZ250. Only the 3's and the 4X's are available for the YZ250
@@UpAllNight91 outstanding thanks
Do you prefer 100% synthetic oils if so why? You use k2 is it a high or low flashpoint
And is semi synthetic good?
@@SethMacgillivary Semi is good. Yamalube is semi and it does well. K2 is full synthetic and is good too. K2 is more of a mid grade as far as flash point (240 flashpoint). Its not as high as motul 800 or caster 927 (up in the 400's) but also not as low as some of the others out there. (down in the 100's) Its a good over all oil. I'm am interested in trying out belray HR-1 but it seems a little costly vs K2 so not sure yet.
@@UpAllNight91 what would happen if u used to low of a flash point VRs to high
@@SethMacgillivary Its said too low burns up too fast and is consumed from the crank area quickly and too high can cause loading up, excessive smoke, and stuff like that.
@@UpAllNight91 could to high make your plug look rich
What year is your 250
2018 with 1996 retro graphics.
@UpAllNight91 you get your decals from Australia?
@@coloradodirtbike5930Decallab decallab.com/ I think they are in Europe.
@@UpAllNight91 awesome thanks and great video too
@@coloradodirtbike5930 Yes sir! Thanks!
Without space for sure
I agree on the top end is being not so tight v4
You preferred it without the spacer?
@@UpAllNight91 the sound of it riving yes. But in top i couldnt tell if it was maxed out or you let out. You said it felt you lost top end with V4s and spacer
I have ear for engine rev but dont go based on mine. I havnt had budget to fix junk bikes up, neither buy one used and work on in the last 10 years.
Also ive never had race reeds Your videos been inspiring and learning
@@justinArk-Box Oh ok. Thanks Justin. Yeah these things are expensive. If I didnt work on them myself not sure I could afford them. Dont think I ever paid a shop, not even once in my whole life. Had to do it all on my own and learned as I went lol
Great comparison, in my day it was Boyesen twin petal reeds.There was a noticeable difference and the stock reeds were metal engine killers. For some reason every time beavis wattles into the shop I think of Don King.😮 🏜👍
Thanks! Thats crazy reeds use to be steel. I have seen that before. I can imagine when they break they tear things up. Don King woke me up too early this morning at my window.
Ya the dual stage reeds in the stock cage were monsters even on my 97 rm 125 big power gain
@@mikebishop6095 I bet. I had a 1988 CR125 back in the day with the dual stage and they worked well. I surely had to change the jetting for them but them where good times. I also had a 1996 RM125 that had the original Vforce 1 on them lol
Weird that you find the using the spacer adds top end, every magazine test I've ever read in the last 35 years including yz250 ones always say the exact opposite, and ive seen tons of aftermarket Reed spacers called "torque spacers" because they add bottom end power and take away top. I've never seen a reed spacer claim to add top end......ever.
@@johnlastname2895 Yes I have seen and heard it go both ways throughout the years. I listened to the theories of both. But when I try them back to back its pretty clear no spacer does make more bottom end power.
ASL everybody
I'm thinking no one knows what ASL is anymore
makes more money
For sure, especially since china has knocked off VForce reeds now they gotta stay ahead of the knock offs.