The video where everybody was waiting for! Thanks for testing this! I guess in the end it all makes sence why GY6's are standard paired with a CVK carb. I couldnt get my PWK setup to be performing better than the out of the box CVK setup either.. PWK definitely gives a way more snappy and racey feeling, but the actual numbers tell us something else. The convenience of being able to start your scooter in the winter with the CVK carb without a hazzle is also worth a lot!
I spent two weeks trying to tune the 22mm PWK, then saw this video. I bought the 24mm CVK and it is a night and day difference!! So much better!!! Thank you for all the work you do so we don't have to!!
Love these vids very informative and no bs.. i love CVK for all the reasons you said but i also like PWK because i know how to tune them even to be smooth low end its possible but it takes a long tine to find that sweet spot. Keep up these types of vids 🙏
Well damn! Now I wish I had watched this vid before ordering the PE!😁 I’ve got a 19mm CVK on still (first thing I replaced) after getting scooter going when it was given to me a couple years ago. I like the idea of quicker throttle response for the fun factor, but think the higher top speed is more beneficial for riding in traffic. And like you said, they just work once you get them dialed in. 👍🏼
Great video!! My PWK30 on my 70mm big bore XR150L works great. I did modify it by putting a piece of foam above the needle to hold it down better and I put a bigger spring to put more pressure on the slide. I might have to try a cvk sometime though! Thanks for the video!😎👍
@@GhettoWrench yes, just added a piece of foam between the white plastic piece and the top of the needle in the slide. The foam piece can be inserted in the white plastic piece where the needle fits. I just had noticed that the needle was really loose when in the carb. Having the foam in there also makes it easier to put the slide back in the carb because it holds the needle where it’s supposed to be. Other carbs have a clip or something that holds the needle in place better. Then I replaced the stock spring with a longer one.
@@iamrycẽ watch this one at 11:00. I tune the stock CVK. Should show everything you need to know how to deal with stock tamper proof carb. th-cam.com/video/DPBJZj4ZySQ/w-d-xo.htmlsi=r5t9C7e7MYsYSqVG
I tried to look through all your videos for the answer and gave up. So much content. You're the man for these Ice bears hands down. Mostest/bestest. My question was have you gotten around to trying the 30mm stock style carb vs nibbi 28 or other styles? I've got a stock 150 with better exhaust Gen 5 and a 171 kit on another basically same as your set up I've seen before possibly I different cam. Ncy ignition set up and an adjustable cdi. (Probably tmi) I have a nibbi 28mm slide style ready to go. I just wonder if rideability would be better with the 30 stock style. Seems this video was a great explanation of what I'm asking about just smaller motor.
@GhettoWrench absolutely bud. I have a 26mm I'm going to try on the stock one gonna see how that works too. Appreciate you. Anything I can do or if you have any questions for me I'm happy to help anyway I can. Least I can do.
Nibbi should have something in the 21/22mm size range. I have a 30mm Nibbi PE carb on my Hawk 250 that is the round slide like yours. The only different is they offer two variants of the PE carbs in two different color choices which are raw aluminum like your and black with anodized red like mine. The variant that offers more sizes is the slip-in version not the one with the intake flange. I think the biggest size you can get for the flanged version is 28mm which a lot of people also like to buy for their Hawk 250's. The biggest you can get for the slip-in PE carbs is the 30mm. Any bigger than that and it goes to the PWK model. Also, good info on the PWK carbs, they're exactly what I'm looking for. My two vintage Yamaha dirt bikes need new carbs and I don't want to pay big money for original carbs from the era's. My 76 IT400 needs a new carb, the one on it has something broken off and my 81 YZ465 never had a carb when I got it since it's a basket case project.
You are so correct. I just looked at them all. I made that comment from memory without checking. I was way off. LOL. I also could have avoided that stupid flange mount.
@@GhettoWrench I think I bought a 22mm version of the slip-on Nibbi for a three wheeler I have. Never got to use it on the three wheeler though since it's been apart for a while. The flanged version is actually better over the slip-on model when it comes to the Hawk 250 though. It keeps the proper distance of the original carb so people were able to keep their air boxes. With my slip-on model I needed a new intake adapter and had to rid of my air box for just a pod filter. But if you're wanting to run a pod filter anyway it's not a big deal.
What do you think about the Polini CP carb? Seems to be a popular carb in the scoot community (at least what I've seen), but I've never seen one on a gy6 50.. although I've heard they come pretty much perfect from Polini for most applications 🤔 kinda tempting lol.. Btw, recent subscriber here. Only been in the scoot game for about a year now lol loving your content 🤙
I had a polini cp19 but it kept spitting fuel out through filter and couldn't get it to stop. This with 50mm bbk. Using Kehein 20mm and content with 54 mph top speed
What do you think about the gy6 EFI systems, not really expensive on Amazon but if you buy from someone like rolling wrench with the connectors they're super expensive. Do you think they're worth it.
@sire-1213 I have no idea. I saw it on RW and was thinking it was too much. I may buy a Amazon one though. Sounds like a fun project. Has to better than a carb.
My Vitacci Clash 200 has EFI on it from factory. Don't know if they're using the same EFI system being sold on Amazon though. Besides some issues with a ground wire to the coil it's reliable for the most part. It starts up and goes every time.
Sorry to bug you but I’ve been stuck trying to make sure my 2013 kymco agility 50cc is the same engine as the gy6. I’m looking at a 21mm carb but after doing research people say 19 might be better for top speed. I just got my moped two weeks ago but got it running well stock now and have rollers and a variator kit coming in the mail today so excited to see how they works. Gonna do a few more mods but probably not a big bore or anything expensive this moped is just for fun gonna buy a ninja400 or something alike soon to get around faster
@tylerseefeld3464 it probably is but you can look at number on left lower part of engine case and it will say 139PQMB or 139qmb or something close. Still would be an improvement with a carb. That Nibbi 19mm worked great on my 50 when it was still just a 49cc.
I have a 150cc CVK carb on my 72cc BBK because the so call 50cc/80cc CVK carb gave me nothing but trouble. No matter how much tinkering I did with it, I could never get it as consistent as the 150cc carb.
Could it be that the PWK had too large of a pilot jet in it? I only ask because I have darn near the exact same setup, (only difference is I have the ssp-g cam, instead of the NCY that you have.) Mine fires right up from cold and never needs the choke. Doesn't bog at all unless stabbed due to the lack of accelerator pump. #95 main #32 pilot w/foam pod filter for me.
@evidentloss I can clean it up by going smaller on the main. When I was tuning it I was ONLY trying for top speed for the comparison at that point and think a 105 is in it. I have a 103 in the CVK. But the carb is 3mm bigger and think that is the advantage it has.
I'm thinking of getting a 21 mm nibbi carb for my stock 50 and was look to hear som reviews or people who have had a nibbi carb before or have now. How are they as for as reliable or performance
@Donbscooters757 The nibbi was WAY easier to tune and make work good out of the box than the PWK. As a matter of fact I ended up back to the exact jets that it came with. I just think the 19mm was too small and that is the only reason the CVK beat it. 21mm would be a perfect size.
@jtapps20 that is a 2 stroke. You may can even go bigger on the carb. I think a PWK is originally designed as a 2 stroke carb. I would go for a 21 to 24mm PWK
Just today I decided to mess with my carburetor (nibbi pe19) I regret doing so because I was riding my pitbike everyday now I can't get it to start I would like to learn but haven't found any how to videos for it
@@GhettoWrench your absolutely right, I forgot to turn the fuel back on, I was kick starting for over an hour. I'm embarrassed but it's my first pitbike and I know nothing about bikes, I'm learning though! Now I'm going for a ride! Lol thanks man I appreciate it!
@@GhettoWrench so would I guess the hypothetical take away would be increased top speed with no change to acceleration like the other carbs offer? Seems to me a better deal than trying to tune. After all scooter performance irl won’t ever be FF fast!
@thefightingchance we open the throttles so fast on these pikes and always run WOT. Honestly once at WOT all these carbs are just a hole and main Jet so I think they are all the same where we live. Just have to find the right mm size.
@@GhettoWrench not sure I mentioned before I am in Tx so I consider your test very valid for my applications. Just finished a wheel upgrade on my trike and went up from 12g rollers to 15g sliders. Got good results but it’s just the step. Think I may try a 30mm cvk as my own ghetto wrench sometime. Guess I wouldn’t have to buy another cable either.
Mt Navy man. I passed the avab test to go back in 2002 or something.ni passed an beautiful black girl. 2 out 20. I didn't have a ged or diploma but what's that say about the system?. They can't take knowledge. Me being from the 33
I just didnt like the cvk. If riding these bikes everyday then cvk isn't the way. Gotta be simplified an pwk is easier to clean an maintain especially being 42 years old an work construction in this NC swampy ass humidity an the sun seems to more well let's just say burning....
@mrWhite81 wow. Have not heard of those in awhile. Had Dellortos on my Moto Guzzi. Back in the 70s the huge performance mod for harley guys was a SU Jaguar Carb which was a CV carb.
th-cam.com/video/ATh7C4e7at0/w-d-xo.htmlsi=yRCqxVe_C6gvKkrl not super informative but this guy did 30mm cvk on a maddog and seems his nibbi performed better by a long shot. Dunno. On the fence now if I should try the cvk route.
@@GhettoWrench probably going pwk. He links it on Amazon for 30$. Made a prelim prep and got the manifold already. May shop Amazon for the cable and angled throttle cable on top of the carb.
The video where everybody was waiting for! Thanks for testing this! I guess in the end it all makes sence why GY6's are standard paired with a CVK carb. I couldnt get my PWK setup to be performing better than the out of the box CVK setup either.. PWK definitely gives a way more snappy and racey feeling, but the actual numbers tell us something else. The convenience of being able to start your scooter in the winter with the CVK carb without a hazzle is also worth a lot!
I spent two weeks trying to tune the 22mm PWK, then saw this video. I bought the 24mm CVK and it is a night and day difference!! So much better!!! Thank you for all the work you do so we don't have to!!
Thanks for the clinic!
A very big and important job has been done. Cool! I watched without stopping. Keep up the same spirit!
I was actually researching this question as I was looking for a more snappy responsive carb on my qmb139. Thank you.
Thank you for the videos you are doing on these mad dogs it helps so much with this project me and my son are working on again thank you
Thank you for this video ive been waiting for something like this for a while.
Love these vids very informative and no bs.. i love CVK for all the reasons you said but i also like PWK because i know how to tune them even to be smooth low end its possible but it takes a long tine to find that sweet spot. Keep up these types of vids 🙏
@@tarourc119 thanks so much
Facts win. Thank you for checking why the junkyard special cvk is the one for the win. Subscribed! 🙂
Great Video!
I'm glad your channel is picking up.
Only a few hours and a lot more views.
Well damn! Now I wish I had watched this vid before ordering the PE!😁 I’ve got a 19mm CVK on still (first thing I replaced) after getting scooter going when it was given to me a couple years ago. I like the idea of quicker throttle response for the fun factor, but think the higher top speed is more beneficial for riding in traffic. And like you said, they just work once you get them dialed in. 👍🏼
@dkhallal you can always ebay the PE. It ain't that much of a difference though. The PE looks cool and is easy to tune
absolutely love the videos. Central florida here.
@@davidlongM54E46 Sebring
Great video!! My PWK30 on my 70mm big bore XR150L works great. I did modify it by putting a piece of foam above the needle to hold it down better and I put a bigger spring to put more pressure on the slide. I might have to try a cvk sometime though! Thanks for the video!😎👍
@@DustySteel so you do not pull your slide up with a cable?
@@GhettoWrench yes, just added a piece of foam between the white plastic piece and the top of the needle in the slide. The foam piece can be inserted in the white plastic piece where the needle fits. I just had noticed that the needle was really loose when in the carb. Having the foam in there also makes it easier to put the slide back in the carb because it holds the needle where it’s supposed to be. Other carbs have a clip or something that holds the needle in place better. Then I replaced the stock spring with a longer one.
@@GhettoWrench I might make a video showing this.
@@DustySteel oh ok
@@GhettoWrench I show this in my newest video. When the foam is in the white piece, the needle doesn’t move around as much.
Well explained, thanks for a great video. /Per Lidberg Sweden
@@perlidberg7351 thanks
Pwk 21 Edelbrock electric pump an it starts right up
Heard where you said you’d make a video of the CVK carb! PLEASE DO!!! Love the videos man!
@@iamrycẽ watch this one at 11:00. I tune the stock CVK. Should show everything you need to know how to deal with stock tamper proof carb.
th-cam.com/video/DPBJZj4ZySQ/w-d-xo.htmlsi=r5t9C7e7MYsYSqVG
@@GhettoWrenchThank you!
I tried to look through all your videos for the answer and gave up. So much content. You're the man for these Ice bears hands down. Mostest/bestest. My question was have you gotten around to trying the 30mm stock style carb vs nibbi 28 or other styles? I've got a stock 150 with better exhaust Gen 5 and a 171 kit on another basically same as your set up I've seen before possibly I different cam. Ncy ignition set up and an adjustable cdi. (Probably tmi) I have a nibbi 28mm slide style ready to go. I just wonder if rideability would be better with the 30 stock style. Seems this video was a great explanation of what I'm asking about just smaller motor.
I'm having trouble finding a 28mm cvk btw seems like 30mms are all over though.
@tiredofinsanity I have NOT tried it. But I think I am going to order one and try it. I was thinking the exact same thing as you are.
@GhettoWrench alright I'm going to give it a shot.
@@tiredofinsanity cool. Let me know if it was better
@GhettoWrench absolutely bud. I have a 26mm I'm going to try on the stock one gonna see how that works too. Appreciate you. Anything I can do or if you have any questions for me I'm happy to help anyway I can. Least I can do.
Nibbi should have something in the 21/22mm size range. I have a 30mm Nibbi PE carb on my Hawk 250 that is the round slide like yours. The only different is they offer two variants of the PE carbs in two different color choices which are raw aluminum like your and black with anodized red like mine. The variant that offers more sizes is the slip-in version not the one with the intake flange. I think the biggest size you can get for the flanged version is 28mm which a lot of people also like to buy for their Hawk 250's. The biggest you can get for the slip-in PE carbs is the 30mm. Any bigger than that and it goes to the PWK model.
Also, good info on the PWK carbs, they're exactly what I'm looking for. My two vintage Yamaha dirt bikes need new carbs and I don't want to pay big money for original carbs from the era's. My 76 IT400 needs a new carb, the one on it has something broken off and my 81 YZ465 never had a carb when I got it since it's a basket case project.
You are so correct. I just looked at them all. I made that comment from memory without checking. I was way off. LOL. I also could have avoided that stupid flange mount.
@@GhettoWrench I think I bought a 22mm version of the slip-on Nibbi for a three wheeler I have. Never got to use it on the three wheeler though since it's been apart for a while. The flanged version is actually better over the slip-on model when it comes to the Hawk 250 though. It keeps the proper distance of the original carb so people were able to keep their air boxes. With my slip-on model I needed a new intake adapter and had to rid of my air box for just a pod filter. But if you're wanting to run a pod filter anyway it's not a big deal.
I used a cheap 24mm carb for a 150cc for my 90cc works perfectly
GHETTO WRENCH IS BACK! WITH ANOTHER SLICE ON THE CARB! YESSSSSS...
THOUGHT HE WAS GONE THERE FOR SOME ODD REASON....😮😊
@SuperPooh1961 LOL. Just too damn hot in Florida to be in the garage lately. But getting some nicer days lately.
What do you think about the Polini CP carb? Seems to be a popular carb in the scoot community (at least what I've seen), but I've never seen one on a gy6 50.. although I've heard they come pretty much perfect from Polini for most applications 🤔 kinda tempting lol..
Btw, recent subscriber here. Only been in the scoot game for about a year now lol loving your content 🤙
@liamjoiner2793 thanks a bunch. I have never even heard of that carb yet. Gonna have to check it out now. LOL
I wonder what the difference between a Polini and a Nibbi PE carb are besides the price?
I had a polini cp19 but it kept spitting fuel out through filter and couldn't get it to stop. This with 50mm bbk. Using Kehein 20mm and content with 54 mph top speed
@@9ERSharK that's fast. Nice.
What do you think about the gy6 EFI systems, not really expensive on Amazon but if you buy from someone like rolling wrench with the connectors they're super expensive. Do you think they're worth it.
@sire-1213 I have no idea. I saw it on RW and was thinking it was too much. I may buy a Amazon one though. Sounds like a fun project. Has to better than a carb.
My Vitacci Clash 200 has EFI on it from factory. Don't know if they're using the same EFI system being sold on Amazon though. Besides some issues with a ground wire to the coil it's reliable for the most part. It starts up and goes every time.
Another thing too,
I've seen posts about coil on plug conversions. That's next on my list of experiments. Gonna try a Toyota coil
@hesperidesbell4643 I saw the NCY one. Didn't know we could usa a car one. But I guess why not. Will def be better quality
Sorry to bug you but I’ve been stuck trying to make sure my 2013 kymco agility 50cc is the same engine as the gy6. I’m looking at a 21mm carb but after doing research people say 19 might be better for top speed. I just got my moped two weeks ago but got it running well stock now and have rollers and a variator kit coming in the mail today so excited to see how they works. Gonna do a few more mods but probably not a big bore or anything expensive this moped is just for fun gonna buy a ninja400 or something alike soon to get around faster
@tylerseefeld3464 it probably is but you can look at number on left lower part of engine case and it will say 139PQMB or 139qmb or something close. Still would be an improvement with a carb. That Nibbi 19mm worked great on my 50 when it was still just a 49cc.
I have a 150cc CVK carb on my 72cc BBK because the so call 50cc/80cc CVK carb gave me nothing but trouble. No matter how much tinkering I did with it, I could never get it as consistent as the 150cc carb.
@@dekoldrick I agree and am on board now. Wish I knew this sooner. LOL
Could it be that the PWK had too large of a pilot jet in it? I only ask because I have darn near the exact same setup, (only difference is I have the ssp-g cam, instead of the NCY that you have.) Mine fires right up from cold and never needs the choke. Doesn't bog at all unless stabbed due to the lack of accelerator pump. #95 main #32 pilot w/foam pod filter for me.
@evidentloss I can clean it up by going smaller on the main. When I was tuning it I was ONLY trying for top speed for the comparison at that point and think a 105 is in it. I have a 103 in the CVK. But the carb is 3mm bigger and think that is the advantage it has.
Man, after I bought all the nibbi intake and carb stuff too 😆
@@hesperidesbell4643 oh man... sorry
@@GhettoWrench nah I like the nibbi stuff. I'm already this far, I gotta commit
I'm thinking of getting a 21 mm nibbi carb for my stock 50 and was look to hear som reviews or people who have had a nibbi carb before or have now. How are they as for as reliable or performance
@Donbscooters757 The nibbi was WAY easier to tune and make work good out of the box than the PWK. As a matter of fact I ended up back to the exact jets that it came with. I just think the 19mm was too small and that is the only reason the CVK beat it. 21mm would be a perfect size.
Are you running these on a 50cc? I bought a Yamaha beluga cv50e and super hard to find a carb. Anyone know what I can use in it
@jtapps20 that is a 2 stroke. You may can even go bigger on the carb. I think a PWK is originally designed as a 2 stroke carb. I would go for a 21 to 24mm PWK
Just today I decided to mess with my carburetor (nibbi pe19) I regret doing so because I was riding my pitbike everyday now I can't get it to start I would like to learn but haven't found any how to videos for it
@@insomniasick on the pitbike? Prob no fuel in the carb if you have a vacuum pump. Check that first. That carb is pretty plug n play
@@GhettoWrench your absolutely right, I forgot to turn the fuel back on, I was kick starting for over an hour. I'm embarrassed but it's my first pitbike and I know nothing about bikes, I'm learning though! Now I'm going for a ride! Lol thanks man I appreciate it!
@insomniasick 🤣 🤣 been there, done that!
What if I put a 30mm cvk on my maddog instead of any other brand? Easy performance I’d assume???
@@thefightingchance for a 150 that would prob work. Or even a 28mm one.
@@GhettoWrench so would I guess the hypothetical take away would be increased top speed with no change to acceleration like the other carbs offer? Seems to me a better deal than trying to tune. After all scooter performance irl won’t ever be FF fast!
@thefightingchance we open the throttles so fast on these pikes and always run WOT. Honestly once at WOT all these carbs are just a hole and main Jet so I think they are all the same where we live. Just have to find the right mm size.
@@GhettoWrench not sure I mentioned before I am in Tx so I consider your test very valid for my applications. Just finished a wheel upgrade on my trike and went up from 12g rollers to 15g sliders. Got good results but it’s just the step. Think I may try a 30mm cvk as my own ghetto wrench sometime. Guess I wouldn’t have to buy another cable either.
@thefightingchance ya the bigger CVK is so much more less work.
The fuel nowadays is hell on those cv carbs
@@seanmayo206 yep
Mt Navy man. I passed the avab test to go back in 2002 or something.ni passed an beautiful black girl. 2 out 20. I didn't have a ged or diploma but what's that say about the system?. They can't take knowledge. Me being from the 33
Which is why I say it's stupid for atv or scooter or moped. My maddog is running an it's not white like what the hell is your bike so white for
@@seanmayo206 so you did NOT join?
@seanmayo206 cause the powder coat had extra white from another job so it was super cheap 😆😆 keeping it ghetto
What main/pilot jet on the cvk?
@@hsawaknow80 103 main and 32 pilot
@@GhettoWrench how about the pwk?
@SpartanBadger616 on the PWK it has a 110 main
The pwk hates scooter CVT. But once rpm is up its balls to the wall
@@seanmayo206 at WOT all the carbs are essentially the same. I think the win went to the CVK cause it was 24mm
The CVT can't react as fast as the pwk carb.
Where did you get that 95mm variator an does the stock 50 boss fit it? I know you've done the leg work an id appreciate the advice
I just didnt like the cvk. If riding these bikes everyday then cvk isn't the way. Gotta be simplified an pwk is easier to clean an maintain especially being 42 years old an work construction in this NC swampy ass humidity an the sun seems to more well let's just say burning....
@seanmayo206 I think it was on ebay. I just googled it. It is the Polini Hugh Speed one. It fits right on.
What app do you use ?
@@saulargueta2584 It's called Drag Racer. I think it's dead since there are no more ads on it. I may get one called Draggy and try that.
Nibbi Pe 19 i dysza główna 70 do 50cm3
I have a Dellorto (PHBG 21 DS) - Black Racing 200usd carb but my CVK 19mm runs better.
@mrWhite81 wow. Have not heard of those in awhile. Had Dellortos on my Moto Guzzi. Back in the 70s the huge performance mod for harley guys was a SU Jaguar Carb which was a CV carb.
I use anything on my 150.
@user-vl2lz9fk9y I have a PWK 28mm on mine, but now curious what a 30mm CVK might do.
th-cam.com/video/ATh7C4e7at0/w-d-xo.htmlsi=yRCqxVe_C6gvKkrl not super informative but this guy did 30mm cvk on a maddog and seems his nibbi performed better by a long shot. Dunno. On the fence now if I should try the cvk route.
@@thefightingchance I think it is more a 24mm thing than a brand thing. Maybe try the 24mm nibbi instead of the 19mm I had.
@@GhettoWrench forgot to mention this was for a 150. He put the 30mm cvk on 150 and says it’s blah.
@@thefightingchance oh ok. I have 28mm PWK on my 150 and love it.
@@GhettoWrench probably going pwk. He links it on Amazon for 30$. Made a prelim prep and got the manifold already. May shop Amazon for the cable and angled throttle cable on top of the carb.
@@thefightingchance do the 24mm if yours is a BBK 50cc.