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 Making My Zuma Go 50+ Build 
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Scooterologist

Joined: Sat Sep 10, 2011 6:50 pm
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Post Making My Zuma Go 50+ Build
Hey,

So recently i bought an 01 zuma that needed much work to it...(about $400)

I got it for $1100 with 2k miles on it...

it needs a speedo, mirrors, plastics to be redone, lights, and much engine work to be done...(refer to title)

So, please get me up to date in terms of what to change first, i have bought mirrors so far but engine wise speaking.

What can i do to get this zuma over 50mph yet still stay in a budget price...i would want to try some rollers(if i knew what they do, please explain), filter, carb, carbon fiber reeds, and speed variator??? what does this thing do?

I will try to find myself some lights i can put on it but i dont know which to put on the front of it in place of the turn signals....what do you guys recommend?

Thank You all and please help me out i am dedicated to this build...


Fri Sep 16, 2011 2:00 pm
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Scooterologist

Joined: Sun Jun 21, 2009 10:29 am
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Post Re: Making My Zuma Go 50+ Build
You spent $1100 on an 01 scooter that needs $400 of work done to it?? :doh:

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Fri Sep 16, 2011 2:52 pm
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Scooterologist

Joined: Sat Sep 10, 2011 6:50 pm
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Post Re: Making My Zuma Go 50+ Build
Pretty much...i needed transportation and the $400 is what i am going to put into it i meant to say...it runs good and right off stock it hit 40...just like i said, i want it to run a bit faster, torquier...


Fri Sep 16, 2011 4:15 pm
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Post Re: Making My Zuma Go 50+ Build
Get a new exhaust rejet if need new rollers. Better clutch and variatir and you should hit 50 for around 300.

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Fri Sep 16, 2011 5:59 pm
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Scooterologist

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Post Re: Making My Zuma Go 50+ Build
alright, for the exhaust i was wondering what do i have to do to dremmel out something inside i guess? Where does the exhaust come apart?

what do the rollers do/what weight do i get?

Clutch and variator are those in one package?


Fri Sep 16, 2011 9:47 pm
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Post Re: Making My Zuma Go 50+ Build
Justin650sx wrote:
alright, for the exhaust i was wondering what do i have to do to dremmel out something inside i guess? Where does the exhaust come apart?

what do the rollers do/what weight do i get?

Clutch and variator are those in one package?


Its been said before and ill say it again. Modding is NOT plug and play. You will have to tune for days before your satisfied.

No you need a new exhaust. Like a leo vince ZX, technigas next R, Athena pro, etc etc.

I can't tell you without knowing what pipe your getting and even then we can only give you a ballpark zone.

No a clutch and variator are not. They are both part of your CVT transmission but bought sepretaly. I can't suggest anything because i don't own a vertical motor. Anything lower then a 02 has a different engine then ones above 02.

Go check you enviromoto.com, spmotostore.com, spi-parts.com, teamcalamri, etc etc. You'll have to shop around for your parts. NME is selling an athena pro pipe, really good pipe right now for $200 its in mint condition. I personally would have taken it if i had the extra funds.

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Fri Sep 16, 2011 9:55 pm
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Post Re: Making My Zuma Go 50+ Build
Vendeta44 wrote:
NME is selling an athena pro pipe, really good pipe right now for $200 its in mint condition.


That pipe won't fit his scoot. The prebugs with the vertical motor also use a different exhaust.

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Sun Sep 18, 2011 12:26 am
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Post Re: Making My Zuma Go 50+ Build
kayakbuilder wrote:
Vendeta44 wrote:
NME is selling an athena pro pipe, really good pipe right now for $200 its in mint condition.


That pipe won't fit his scoot. The prebugs with the vertical motor also use a different exhaust.


Wooops i didn't notice it was a 01 my bad

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Sun Sep 18, 2011 12:32 pm
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Scooterologist

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Post Re: Making My Zuma Go 50+ Build
well im stumped....

after 2 days of hard research i am all confused with variators, clutches, roller, weights

my scoot get up to 30 very quick and then to 40 in like 10 more sec....i just want it to go faster by like 10mph....why is everything so complicated?


Mon Sep 19, 2011 3:27 pm
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Post Re: Making My Zuma Go 50+ Build
Justin650sx wrote:
well im stumped....

after 2 days of hard research i am all confused with variators, clutches, roller, weights

my scoot get up to 30 very quick and then to 40 in like 10 more sec....i just want it to go faster by like 10mph....why is everything so complicated?


40 on a stock prebug is good, to gain more speed, you will need some upgrades.

The standard way of gaining that extra speed is upgrading to a 70cc bbk and swapping to a performance exhaust pipe. When you do this you will need to rejet your carb, or upgrade to a bigger one. You will also need to install carbon fiber or fiberglass reeds and make sure to replace the wrist pin bearing. The pipe will make you need to retune the transmission with lighter weights and stiffer clutch springs.

You may be able to get the extra speed without the pipe. You would just do the bbk, reeds, and make sure you carb is jetted correctly for the upgrades.

The pipe alone may get you there too, but again that requires retuning your transmission and making sure you are still jetted correctly.

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Vivid Red Candy '99 Zuma II Athena Sport BBK, Motoforce FG Reed (Re)Build Thread
Raven '08 Zuma S6 SportPro, LV ZX, Keli Variator, SL26 Tires, Canadian OEM Short Windshield, Fiamm Low Note Horn, LED Stobe Brake Lights, Triple Brake light Mod, Dual Headlight Mod - SOLD


Mon Sep 19, 2011 5:38 pm
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Post Re: Making My Zuma Go 50+ Build
For $300 before shipping you can get the following from SIP in Europe:

Racing Cylinder D.R. EVO 68cc - $72.62
http://www.sip-scootershop.com/en/products/racing+cylinder+dr+evo+68cc+_dr00088
Bearing Gudgeon Pin - $6.59
http://www.sip-scootershop.com/en/products/bearing+gudgeon+pin+_r100150010
Reed Valve Dies POLINI for MINARELLI vertical - $14.92
http://www.sip-scootershop.com/en/products/reed+valve+dies+polini+for_p2130530
Racing Exhaust LEOVINCE Handmade ZX - $127.20
http://www.sip-scootershop.com/en/products/racing+exhaust+leovince+hand_l4579
Carburetor DELL`ORTO 17.5 main jet 90, idle mixture jet 34, with manual choke - $72.85
http://www.sip-scootershop.com/en/products/carburetor+dellorto+175+_p2010157


Another alternative from SPMotostore in Canada $350 and shipping is free until Wednesday:

Top Performances TROPHY 70cc.Minarelli vertical short-threaded - $161.70
http://www.spmotostore.com/CYLINDER_KIT_70cc_TROPHY_MINARELLI_VERTICAL_p/t9909620.htm
Reed petals for reed valve RACING Motoforce. Minarelli vertical - $5.87
http://www.spmotostore.com/product_p/mf35.168sp.htm
Small end bearing Stage6 HighQuality. silver. 10mm 10x14x13mm (The Trophy kit may come with a bearing, so this may not be needed) - $18.13
http://www.spmotostore.com/URLrewrite.asp?404;http://www.spmotostore.com:80/HIGH_QUALITY_NEEDLE_BEARING_p/s6-802000.htm
Sport exhaust system Stage6 Street - $161.70
http://www.spmotostore.com/EXHAUST_STREET_MINARELLI_VERTICAL_p/s6-9216800.htm


Or $320 before shipping from Scootercraft in the U.S.:

Motoforce 70cc Sport Cylinder (10mm) - Minarelli Vertical AC - $119
http://www.scootercraft.com/scooters/yamaha-scooters/zuma-bws-50-vertical/cylinders/motoforce-70cc-sport-cylinder-10mm-minarelli-vertical-ac.html
Stage6 Small-End Bearing 10mm - Minarelli -$18.80
http://www.scootercraft.com/scooters/yamaha-scooters/zuma-bws-50-vertical/bearings-1/stage6-small-end-bearing-10mm-minarelli-morini-ac.html
Motoforce Racing Reeds Petals - Minarelli Vertical - $6.20
http://www.scootercraft.com/scooters/yamaha-scooters/zuma-bws-50-vertical/intakes-reeds-1/motoforce-racing-reeds-petals-minarelli-vertical.html
Stage6 Street Exhaust - Minarelli Vertical - $173.80
http://www.scootercraft.com/scooters/yamaha-scooters/zuma-bws-50-vertical/exhausts/stage6-street-exhaust-minarelli-vertical.html

You will still need to get some other jets and spark plugs for tuning.

There are plenty of other options. This is just to give you an idea of what is out there and for how much.

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2013 Kymco Downtown 300i, pearl white
Vivid Red Candy '99 Zuma II Athena Sport BBK, Motoforce FG Reed (Re)Build Thread
Raven '08 Zuma S6 SportPro, LV ZX, Keli Variator, SL26 Tires, Canadian OEM Short Windshield, Fiamm Low Note Horn, LED Stobe Brake Lights, Triple Brake light Mod, Dual Headlight Mod - SOLD


Mon Sep 19, 2011 8:38 pm
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Post Re: Making My Zuma Go 50+ Build
Justin650sx wrote:
well im stumped....

after 2 days of hard research i am all confused with variators, clutches, roller, weights

my scoot get up to 30 very quick and then to 40 in like 10 more sec....i just want it to go faster by like 10mph....why is everything so complicated?


It is actually a very simple design as far as automatic transmissions go. You just want the right weight to balance the springs to keep it in the right gear all the time. Keep researching! :eng101:

If you go with a non-standard setup you will definitely want a roller tuning set.

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2013 Kymco Downtown 300i, pearl white
Vivid Red Candy '99 Zuma II Athena Sport BBK, Motoforce FG Reed (Re)Build Thread
Raven '08 Zuma S6 SportPro, LV ZX, Keli Variator, SL26 Tires, Canadian OEM Short Windshield, Fiamm Low Note Horn, LED Stobe Brake Lights, Triple Brake light Mod, Dual Headlight Mod - SOLD


Tue Sep 20, 2011 9:22 pm
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Scooterologist

Joined: Wed Sep 01, 2010 7:25 am
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Post Re: Making My Zuma Go 50+ Build
What size jet do you think would be good in a pre bug 70cc with stock carb? I read 93 is stock, so around 100 should work? These are the right size, correct? http://www.scootercraft.com/scooters/ya ... -jets.html


Tue Sep 27, 2011 7:42 am
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Post Re: Making My Zuma Go 50+ Build
trick wrote:
What size jet do you think would be good in a pre bug 70cc with stock carb? I read 93 is stock, so around 100 should work? These are the right size, correct? http://www.scootercraft.com/scooters/ya ... -jets.html


Yes the 6mm jets will fit, the stock 93 has always been WAY too rich, a 100 isn't really necessary unless your running an open filter (not recommended).. most people settle usually around an 82-85 mj. Jetting depends upon many factors like exhaust, environment, filter etc.. elevation/air density plays a major part as someone as sea level will use a larger jet then someone who lives up in the mountains. It's always recommended to buy a good range of jets between 80-100 start rich and work your way down with plug chops.

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Thu Oct 06, 2011 4:48 pm
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Post Re: Making My Zuma Go 50+ Build
Beno wrote:
trick wrote:
What size jet do you think would be good in a pre bug 70cc with stock carb? I read 93 is stock, so around 100 should work? These are the right size, correct? http://www.scootercraft.com/scooters/ya ... -jets.html


Yes the 6mm jets will fit, the stock 93 has always been WAY too rich, a 100 isn't really necessary unless your running an open filter (not recommended).. most people settle usually around an 82-85 mj. Jetting depends upon many factors like exhaust, environment, filter etc.. elevation/air density plays a major part as someone as sea level will use a larger jet then someone who lives up in the mountains. It's always recommended to buy a good range of jets between 80-100 start rich and work your way down with plug chops.


If staying with the stock carb, move up from the 93 not down. IIRC I picked up a 95 and a 98. I haven't finished mine yet, so I don't know for certain which jet I'll end up with, but don't go down into the 80's on the stock 12mm carb, unless tuning/plug chops show that you need to go that low. Start rich and work towards lean.

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2013 Kymco Downtown 300i, pearl white
Vivid Red Candy '99 Zuma II Athena Sport BBK, Motoforce FG Reed (Re)Build Thread
Raven '08 Zuma S6 SportPro, LV ZX, Keli Variator, SL26 Tires, Canadian OEM Short Windshield, Fiamm Low Note Horn, LED Stobe Brake Lights, Triple Brake light Mod, Dual Headlight Mod - SOLD


Sat Oct 08, 2011 8:58 am
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