Yamaha Zuma 158cc BBK Project SPEED TEST with mod review

Now that the Yamaha Zuma build is fully completed it is time to do what people have been asking for and to do a speed test. Before I do the speed test I wanted to make sure everyone knew what the current mods are on this scooter and how it got to this point. I know there were a lot of people asking when I was going to follow up with more videos on this build, but it took me a while because I had to do the breaking process for the motor. I didn't wanna make it break before I actually got to ride it because far as I'm concerned this is one of the most exciting scooters I've ever ridden. Below is a list of the videos of the mods that I did on this scooter.
The first one is I removed the stock intake and replaced it with a simple 90° silicone elbow with a filter which was relatively simple. The second mod was filing down the throttle body to remove hard angles and get airflow to work better into the engine, this was a little bit more difficult and took a lot longer but in the end, I think it is a benefit for acceleration. Oh next rather than buying an exhaust I built one by buying an eBay exhaust and welding it on and I have to say it worked out quite well and sounds great. Lastly, this entire series is the big bore kit mod and if I had to make a choice this would be the one mod that I would do. This thing makes the scooter accelerate fly and all around the most enjoyable scooter I've ever ridden.
If this build interests you please take a look at the entire playlist and watch it from the start because I made some unusually long videos in the series because it was so fun to build.
**Zuma Intake MOD
• 2016 Yamaha Zuma 125 N...
**Throttle Body MOD
• Yamaha Zuma 158cc BBK ...
**Exhaust MOD
• Making a Yamaha 125 Zu...
**RC158 Yamaha Zuma 125 BBK (To 158cc)worth every penny
• 2016 Yamaha Zuma 158cc...
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[@KUKI_de]

nice video mate!! Thumbs up 🔥

[@SmallEngineVelocity]

Thank you

[@andyproctor3588]

Been waiting on this one looks great off the line very nice torque don't take long to reach those speeds either all in all I would say impressive and knowing you keep tinkering with it will be hitting 70 before long🤣...

[@cornpapbrecht4529]

Great video. That's pretty good acceleration 0-60 for a CVT scooter

[@SmallEngineVelocity]

I got a new belt to use but I’m waiting for a new variator first before I use it.

[@dkgerman1]

Great vid man! 🔥🔥🔥

[@SmallEngineVelocity]

Thanks :) I’m impressed with it

[@roywalls5595]

Thanks again for great video! Ceasar 💯

[@godspeedseven1791]

Seems to be way better than the reliability issues with gy6 mods.

[@SmallEngineVelocity]

If my RUCKUS was this reliable with the GY6 this would feel average to me. As it stands now I am amazed at how well this Zuma runs, The usable power, the ability to carry 1000 things, and to me LOOKS cool.

[@godspeedseven1791]

@@SmallEngineVelocity yeah , I need to go thru all your zuma vids. Maybe i could get the wife to ride something like this. We sold the ruckus as it just wasnt the same like back when I was 150lbs.

[@SmallEngineVelocity]

Zuma has a pretty tall seat high, my wife can’t sit on it and hold her up she has to jump off the seat.

[@SmallEngineVelocity]

@@godspeedseven1791 Look for the old speed test video

[@Zach-sg5uu]

Twin turbos on it also! May be a really small shot of NOS!😂

[@SilkLotus]

What would you recommend for a stock 125(2020) as far as performance per dollar? Airflow, EFI, clutch or CVT components? If you had say $500 to spend, what would you do?

[@Zach-sg5uu]

They should build them like that!

[@SmallEngineVelocity]

I agree , it's safer and more usable.

[@Zach-sg5uu]

@@SmallEngineVelocity Yes the law should not require 50cc without a separate license! They should simply put a governor on a 125 to 150 cc. Motorcycle or scooter and put a governor that stops it from going more than 45 50 mph. 30 or 35 mi./hr. is too slow & there’s not enough power for hills! Awesome if you had the bigger engine and it was just topped out at a safe speed. Until you got your motorcycle endorsement. Then you could practice son and keep the same bike and have it de restricted at the DMV! I would be OK with that government regulation as long as it came with the more powerful motor for safety reasons! Just as going to fast can kill if you’re inexperienced. Going to slow can get you killed or badly injured! Especially with crazy pissed off drivers!!

[@FirstnameLastname-bp5cm]

I’m super curious how much the mpg’s have changef

[@fatguymaneater]

Hey man, I just got the same scoot 2016 125cc zuma. Do you 100% recommend doing the upgrade? I’m probably going to ride stock for a bit but I know I’m going to want to mess around in the future, if it’s worth it

[@SmallEngineVelocity]

Ride stock for as long as you like. You will find it is powerful enough for every day riding. It will be fun to ride! Now with that being said, with the BBK I can tear up the road and give cars a hard time keeping up off line line. X3 more fun now but do I recommend it ? If you have the tools and the skill sure but I recommend getting to know the bike (ride stock 125) for as long as you like until you feel like you could use more. Thanks for the reply

[@fatguymaneater]

@@SmallEngineVelocity right on thanks!

[@fatguymaneater]

@@SmallEngineVelocity just did the upgrade, super stoked! Thanks for being one of my inspirations to do the work!

[@SmallEngineVelocity]

Nice!!! Dude it’s gonna rock be ready !

[@fatguymaneater]

@@SmallEngineVelocity cheeee🤙!

[@wesleykasman6130]

Did you have to tune the ECU given the upgrades? I have a stock 2016 Zuma and I want to add an exhaust. Cheers, thanks for the video!

[@SmallEngineVelocity]

From the experts, I was told no ECU or fuel mods were needed. You only need to IF you upgrade the size of your throttle body. I did port and polish the intake so I believe I could have benefited from a tune but

[@vwjet357]

Is there enough torque now to lift the front up a bit with the BBK?

[@roywalls5595]

I have not test how fast my piaggio upgraded I did on it yet because till have check on it I added new Variator kit and dr pulley slider 12.5g & rebuild the clutch I making sure never thing tightening up nuts & bolts! Ceasar

[@Zach-sg5uu]

That’s a lot closer to the 125 cc Two stroke acceleration and top speed. What would happen if you put twin turbos on it?

[@SmallEngineVelocity]

Funny you ask, I looked that up. I've seen by builds with turbos because a programmable ecu exists

[@Zach-sg5uu]

@@SmallEngineVelocity That’s very cool. Please do a video with turbo or two!

[@VegasGolfDegens]

Hey bud where did you get the back rest?

[@DivergentDroid]

How many miles did you go to break it in?

[@SmallEngineVelocity]

300 or so miles , should have been more but I’m impatient

[@thechosen5805]

What phone mount is that???

[@caseylynn6687]

With the Tst CVT kit I can hit 74mph

[@fatguymaneater]

Other mods too? Intake/exhaust?

[@charliecasseday8886]

More ruckus video plez

[@SmallEngineVelocity]

This is the second to the last video on this series for the people who wanted me to finish the zuma series. There is a new Ruckus build series starting in the next few weeks

[@Lil_eee]

What app

[@caseylynn6687]

9500 is cut off I believe

[@SmallEngineVelocity]

I’m sure 10k is the limit before valve float. What do you think Casey ?

[@caseylynn6687]

@@SmallEngineVelocity I have hit the 10k but that's with the beast mode tuner with rev limiter bypass. The cam can handle 10k but the power band is like 7-9k rpms

[@SmallEngineVelocity]

Thanks man. This thing rocks. Now if I could only figure out how to lower it. CVT stuff , clutch and belt is next if I can afford it. Should make a go fund me for parts ! Jk lol

[@quanwick4516]

@@caseylynn6687 do you have trouble with your beast mode tuner having the engine shut off around idle?

[@caseylynn6687]

@@quanwick4516 It would stall we I came to a stop occasionally once I was at full throttle for a long time for about 30 minutes plus and the engine's hot

[@sloanfeazel1998]

Not bad still kinda slow

[@SmallEngineVelocity]

Need to get a new variator and heavier sliders but the accel and take off is amazing compared to stock