Yamaha Zuma cylinder comparison 70cc 

Thank your for the instructions especially on the RPM's!

Give this man a like! 3 years later still dead on lol!

This video will help so many minarelli ac riders

Good video and very informative on what pipes and carbs run best on these different cylinders. What I would recommend though is showing the port lay out difference and exhaust port size on these kits. And also point out that the Stage 6 race has a bridged exhaust port which looks to me that can be opened even wider making even more power from this kit if fitted with the right exhaust and a large carb. I also noticed that the Airsal exhaust port was half closed. Meaning that it wouldn't make any power in the higher rpms over stock but would definitely have more torque due to the larger displacement and also may rev up a bit quicker over stock due to the nikasil having an effect of lessened friction on the piston rings. I had a steel liner put into my NSR125 (stupid mistake) and lost 5bhp on the dyno due to the friction on the rings. But it does come with benefits of rebore and honing as you mentioned!

Nice Review!

Malossi sport or polini sport are the best, great casting and last with a 17,5 mm carb. Had both, malossi has a bit more torque, polini a bit more speed. Its up to you but put a good crank in it, stock one isn't strong enough for 70cc. Good pipes are Gianelli Shot or Yasuni R. I rode both with a Leovince SP3, lots of torque and low sound. Only just a little slower on top speed as those other 2. If you ride daily I would recommend a Leovince Touring, Malossi multivar with 5,2g rollers, malossi ventilvar and yellow malossi spring

Very helpful 👍🏻😎👊🏻💚🔥🔥💨 BIG RESPECT from the UK👊🏻

The Stage6 street tunes down for the low end really well. It can make power up into 12k RPM, but it also can get mountains of torque lower down in 7k/8k too. Which is what makes both usable and unusable with the stock crank. You aren't going to be using it with a stock final drive and and high RPM pipe on stock. Using it with stock/silence design pipes, and pipes like the LeoVinceTT, giannelli extra, and the china special, along with heavy weights and a long final drive- will work really well on the stock crank with it. The stage6 replica pro, is designed to go with the cylinder, and really breathes the large powerband of it (is insane, makes power between 8k and 11k), can also be geared and weighted heavy for on the stock crank. The cylinder WANTS to rev high, but will still be content running in the lower end of things.

My 15 year old son and I have recently purchased a 2006 Derbi Bullet. We're new to the scooter world and are learning as we go. We have purchased a few parts. A malossi multivar 2000 and a yasuni z pipe. I know we've probably started backwards but now we are wanting to go big bore. Malossi sport, polini sport, or stage 6 sport pro. What do you think would be our best option? I only suggest those because all are $250 can.

Running full polini setup. 70cc corsa with big valve, 21mm cp carb. Leovince gp2 handmade and polini highspeed vario.

Very informative. Suggestion for a video. Bigger bore kits and what to look at when getting one.

I love watching your videos, learning a lot. I'm from Portugal and I recently owned a first generation Piaggio Typhoon, and started modifying it. I put a polini sport 70cc kit, a polini crankshaft, polini CP 17.5 carburettor (I increased the giglers) and a Yasuni r exhaust. I feel like it lacks a bit of power at high revs. With your experience, I would like to know if this combination is good, or if I have to make any changes?

Love your videos and your shop. Going to be buying either a Corsa or Contessa for my '99 Jog/Minarelli from you guys soon. I don't mind a rebuild every 5k-10k miles or so, but anything more I'd like to avoid. I'm going to be uphrading the stock crank either way (suggestions?). Should I go with a Corsa or Contessa?

Really handy information was given out as I heard quite a few ideas and knowledge that I already had being confirmed in the video 🙂.Would still like to ask you guys why wasn't an MXS cylinder and an Athena cylinder included in the bunch? My interess and curiosity in these brands has been growing as I'm trying to gather as much info as possible in order to make my choice on a new 80cc cylinder kit (∅47,6)...

I'm talking bout the Chinese motor kits that are bolted on to bicycles. There 70/80 cc. The one I just purchased is a the newer version suposedly100cc. There all I believe based of the original block 49cc. Some called PK80

Could you do a comparison of the cylinders available for the 4-stroke Zuma 50F/C3/Vino Classic?

Very helpful!! Thank you.

Thanks for the info! I am probably gonna roll with the Airsal, I have a NCY pipe, and want to keep the stock carb I am a commuter.

There's posts of motors having chainsaw jugs altered with spacers and that being about timing n port issues

I run the malossi with an 19mm carb, an I love it,

Hi I've got an fz50 what head can I put on that

Malossi vs polini Which of the two is more powerful ??

Great video. Why do you say you will eventually blow your stock crank with the stage six street race kit. What pipe would you suggest to run with the stage 6 street race with stock carb?

What about 139qmb gy6

With these stage6 cast iron cylinders, what spark plug do you recommend for colder weathers? B7 b8 or b9?thanks

Who do you recommend to port and Polish RC boat motors? Do you have anybody who you recommend? Please comment back thank you very much

I’ve run the street/race and the corsa both on a Gianelli reverse pipe and 19mm dellorto carb. The street/race felt better on the butt dyno. I’ve ruined two kits with rod bearing failures. Both basically my own fault. Buy the highest quality rod bearing you can. Definitely not a place to skimp. I’m currently running a bearing for a KX65 12mm pin.

good vid bud

Hey guys, Thanks for this great video. I have a 2005 Piaggio Typhoon that has 12k mles on it and has been sitting for a while. I bought it at an auction and it had the stock pipe on it when I got it that was rusted off at the head connection. I only just managed to get it running and rode it around the yard then parked it for several years ago. I want to buy one of these kits that is the the most reliable, I won't be street racing but I would like it to be fast and I would actually like it to be very quiet if possible (sleeper?). I would much prefer to have strong mid range instead of extra top end also. What would you suggest for a kit, carb and pipe and how much can you sell it all to me for. i'm in N.C. Thanks in advance. I will also check out your posted sites

I have 2 zuma bws's one is an athena half breed. looking to upgrade bolth units to 70cc (whole pack) with the same setup, was thinking stage 6 but not allways available. Bolth run long and hot with weight ( mountian trips ) octane is about 100 - 140. Any suggestions on wich cylinder packs an carbs to upgrade with? And yes also doing the variaotrs, belt, gears.

I’ve got a 1998 yamaha zuma with the vertical style cylinder set up, not the horizontal. Will these kits fit the vertical style too?

Polini Corsa ported, polini race 4 crank, polini cp 21mm carb with polini pod filter and stage 6 pro replica on 2005 Zuma

Who do I contact to get a Exhaust for a 2005 Eton beamer 2 model PN2B. I was able to put on 02-11 zuma bbk but I want Exhaust and 15/42 gears. And Zuma exhaust doesn't fit. Any info is greatly appreciated.

Hey juch need to no something about 100cc and Big bore kit thanks

What are you thoughts on the Polini 50cc cylinder kits? They run about the same price as their 70cc cylinders. Was wondering if I was going to spend that money should I just skip the 50 and go straight to the 70.

Hey Brandon, would the air sal or a naraku kit work with a stock exhaust? Thank you, awesome vids

Will the Doppler crank you were selling be ok with the MKII kits?

One of those 17hp kit would be amazing in a big 16" wheel kymco people or piaggio. Are there any 2T 16" scooters floating around left on the market in the US? Also been a fan with the 14 and 16" wheels, handles more like a bicycle, motorcycle, doesn't want to stand up or torque steer when braking in corners like the 12" and 13" do.

I have a yamaha slider 2010 and i already have leovince tt black editon pipe and im thinking of getting polinis 70cc sport im just wondering is it worth getting a new pipe or can i still use the pipe i already have on? and btw my build is only for wheelieing and stunting.

i love info,ggz

With all these cylinders… how would you rate/compare the Motoforce 70cc kit?

A yasuni R won’t work great with a Streetrace ?

What kind of power and Pipe we talkin about on the polini sport kit I'm running a z right now with a 21mm dellorto the engine just ain't doing right how you know where the pipe turns on and off at

Thanks so much for making this video i had a aerox at 16yrs old now just bought myself a Yamaha BWS with full malossi kit on malossi clutch variator malossi belt light weight rollers desltro 19.5mm carb mallosi gear up kit, quick action throttle & it’s awesome it’s really fast Does anyone know if you can put a hydraulic brake on the rear?? It’s a 98 model. Thanks guys/gals

your website does not have a selection for E-ton Beamer III, I know it's a 50cc, do you have any recommendation for the Beamer III 5BB VIN?

i hope yasuni r gonna fit for my setup i got polini cyiilider annd 17.5

How many gas tanks must one fill up to break in a 90cc cylinder on 2t’s ?

Very good info, isn't the air cooled MHR more powerful than the stage6 race bore.

Jetting recommended for the 70cc street race, c16 pipe and polini 21cp? Thanks a bunch.

hello, im from amsterdam alot of these brand's are really common to know about for me like airsal,polini,malossi,athena....how familiar are you in america with the 2 stroke brands?,, my opinion about the cylinders it's a great layout i in person will only use air cooled iron cast polini stage 6 dr,top performance cylinder kits simply because those alu race kits air cooled get to hot with road use, all these minarelli AC engine's u can easy swap to a LC build and make those cylinder kit's last 3 times longer and keep the ideal temperature range and keep the peak power and not burning the piston rings i heard u mention yasuni exhaust those are definitly top of the line :D having an r,c16 u can drive almost any kit already :)

I have the polini 19 mm phbg with fitted malossie intake but was wondering what line go where for fuel and air and oil go and I'm running it with a corsa and a v8 pipe does this sound like a decent set up. Just wondering what gears I should run

So what’s the exact difference in the corsa and the Cortesa?

what cylinder kit do you think is the upper limit on a stage6 pro replica exhaust.

Hey, what about water cooled cylinder ? Can I also have a mechanical water pump on zuma

what size Carb is best for the streetrace ?

Going to get s6 MK2. S hould work with carb dellort 17.5 and yasuni c16 or z?

We're would you rate Athena I see them for $130 plus shipping?

i have a question can a Cylinder kit Malossi SPORT 70cc 10mm Minarelli Vertical fit on a Hyosung plz let me know

When will the 70cc bbk polini corsa be in stock

i want to build a low rpm torque monster on a peugeot witch Exhaust do you recomend with the 70 cc cast iron

Will any of them fit a Chinese bicycle motor kit ?

Will any of these last a long time and be reliable?

Do you have an opinion on the motoforce cylinder kits? I have an Aprillia sr50 ditech that has less then 700 miles and previous owner ran it out of injection oil.

Best kits you have for Af18 dio etc ¿

How do you tune the stage 6

Hi man, i have a stsge6 street race 70cc cylinder kit, performance exhaust, stock mikuni carb, 5gram sliders, stage6 variator, naraku drive face. Question is, do i need to warm up the scooter from cold start like for 2-3 mins? I just notice that if i run it straight away from cold it boggs briefly then it goes away and will be fine. Do these cylinder need warm up?

if i plan on putting a bunch of miles on my 2008 zuma what is the most reliable bore kit? Palini Corsa? or Contesa? or other?

Any idea bcr?is good

Whats best polini evo 70ccm ac or malossi mhr ac

yoooo i have dozens of questions for yall i need to speak to 1 of yalll from this shop

I cant find the malossi kit can you link it?

There’s no sound on this video

so even the one that makes 17 horsepower is 70cc to or 80cc

What size is a stock carb for a af16???

I really need your help. Make my 50cc scooter faster please. I have a Chinese SE 50 gator express

Can you ship in japan?

Can you ship to hawaii?

Wat about mxs

motoforce racing 70cc is also very good kit

How about naraku 70cc?

47mm ?...

Haha 1st cilinder "mid 7" man that is one of the better cilinders aluminium is always better IT breaks faster nut wat more horse

viilattu airsali jättää

"tooning"