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 Best sport 50CC options? 
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Newb
Newb

Joined: Mon Oct 29, 2018 9:31 pm
Posts: 9
Post Best sport 50CC options?
Hi guys I am now curios about aftermarket 50cc kits, not the crazy ported monsters, the sporty ones considering malossi or polini 50cc sport kit as I feel It will pair with a stock crank and last a lot longer with out breaking cases; is my logic flawed?

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04 Yamaha zuma
ncy ramp plate Plus secondary pulley ( does alot )
Yasuni R derestricted + Carb Mod
Stock air-box, carb, and cylinder
Gates Long belt 44mph Gps'd


Fri May 03, 2019 1:51 pm
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Bronze Member
Bronze Member

Joined: Fri Aug 31, 2018 5:18 pm
Posts: 373
Location: Fox Valley Wisconsin
scooters and mods: 2 2004 Vinos 2004 Zuma
Post Re: Best sport 50CC options?
Just go to a 70 cc cast iron malossi top performance polini stage 6 same amount of work same amount of money as a 50 cc .
You are right the sport kits are very reliable with no crank upgrade .

_________________
2004 Vinos Derestricted exhaust and variator stock carb with mikuni 70 main jet needle down 1 clip 40 mph
Athena Sport BBK waiting to go on

2004 Vino Malossi sport 70cc Malossi Wild Lion pipe derestricted stock variator stock carb 72 mikuni main one clip rich
45 mph still breaking in Michelin S1 90/90/10 rear tire Michelin S1 3" x 10 up front

2004 Zuma Malossi sport 70 cc Technigas next r polini green springs stock clutch 2008 zuma torque driver polini high speed variator 5.5 grams sliders Stock Carb 82 main jet 46 pilot jet needle 1 clip rich stock athena 14/42 gears 11 to 1 final ratio 56 mph

2005 Eton Beamer (Taiwan Zuma Clone) Airsal sport 70cc 9200 peak rpm top speed 42 77.5 mikuni jet needle 1 clip rich


Fri May 03, 2019 6:01 pm
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Silver Member
Silver Member

Joined: Wed Mar 16, 2011 9:25 pm
Posts: 711
Post Re: Best sport 50CC options?
The cylinder isn't really going to determine whether you need a crank upgrade. As long as you're not looking at a combination that is just terrible together, it's really the pipe that will determine whether the rpms raise high enough to necessitate a crank upgrade. A Yasuni R pipe probably leaves a lot of wasted power on a 50cc cylinder. Once upon a time I was getting the same top end with the stock cylinder and a Leo Vince ZX, which isn't as strong of a pipe. But according to these tests that Yasuni pairs well with a sporty Stage6 Streetrace at a stock crack safe rpm level.

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05 Zuma
Stock. Blank canvas. =D


Sat May 04, 2019 4:59 am
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Newb
Newb

Joined: Thu May 30, 2019 8:43 am
Posts: 5
scooters and mods: yamaha bws 2004
Post Re: Best sport 50CC options?
Okay you guys can see what I have on my bike below I'm wondering what do I need to get my transmission a lock up like I see in videos people pulling wheelies right off the bat or spinning on pavement like I want to be able to get that snap will an over range kit help that my variator is slipping on take off I've tried all different weights so I'm wondering if I buy polini over range kit or a malossi overrange kit will that help or and another question is can I only use that on a 50cc or will it work on a 70cc cuz I want to get more snap and also more speed top end speed. I have a 50cc so I'm just wondering. I don't really want to spend $500 for nothing so

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yamaha bws 50cc 2004 , dual headlight mod headlight mod, malossi mhr racing brakes, Str8 shock Riser 60mm, tun'r high flow air filter K&N Style, polini 3g speed clutch, doppler white spring i have them all i think im going to change to yellow, malossi winged speed clutch bell, polini clutch engagement Springs(green), poline jets, stage6 5.5and 6gram weaights, tun'r oversized air fan(red), str8 air scoop, and yasuni z pipe with red adrenaline exhaust (fully unrestricted) and side kick stand


Wed Jun 12, 2019 6:52 am
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Newb
Newb

Joined: Thu May 30, 2019 8:43 am
Posts: 5
scooters and mods: yamaha bws 2004
Post Re: Best sport 50CC options?
Okay you guys can see what I have on my bike below I'm wondering what do I need to get my transmission a lock up like I see in videos people pulling wheelies right off the bat or spinning on pavement like I want to be able to get that snap will an over range kit help that my variator is slipping on take off I've tried all different weights so I'm wondering if I buy polini over range kit or a malossi overrange kit will that help or and another question is can I only use that on a 50cc or will it work on a 70cc cuz I want to get more snap and also more speed top end speed. I have a 50cc so I'm just wondering. I don't really want to spend $500 for nothing so

_________________
yamaha bws 50cc 2004 , dual headlight mod headlight mod, malossi mhr racing brakes, Str8 shock Riser 60mm, tun'r high flow air filter K&N Style, polini 3g speed clutch, doppler white spring i have them all i think im going to change to yellow, malossi winged speed clutch bell, polini clutch engagement Springs(green), poline jets, stage6 5.5and 6gram weaights, tun'r oversized air fan(red), str8 air scoop, and yasuni z pipe with red adrenaline exhaust (fully unrestricted) and side kick stand


Wed Jun 12, 2019 7:16 am
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Bronze Member
Bronze Member

Joined: Fri Aug 31, 2018 5:18 pm
Posts: 373
Location: Fox Valley Wisconsin
scooters and mods: 2 2004 Vinos 2004 Zuma
Post Re: Best sport 50CC options?
You need a better power to weight ratio and down low power .
50 cc with the 210 lb bug eye zuma it is very hard too wheelie .
70 cc with 210 bug eye zuma easier to wheelie .
70 cc 180 prebug wheelie very easy. Just ask member Tassy
70 cc on my 160 lb vino wheelie all day long have to actually fight not doing one.

The overrange kit is something to think about after you put on a 70 cc kit .
I have not seen the need yet to purchase one .
A malossi delta clutch can be set to grab harder and make you more prone to wheelie .
It has weights that you adjust as well as spring the weights effect the bite .

_________________
2004 Vinos Derestricted exhaust and variator stock carb with mikuni 70 main jet needle down 1 clip 40 mph
Athena Sport BBK waiting to go on

2004 Vino Malossi sport 70cc Malossi Wild Lion pipe derestricted stock variator stock carb 72 mikuni main one clip rich
45 mph still breaking in Michelin S1 90/90/10 rear tire Michelin S1 3" x 10 up front

2004 Zuma Malossi sport 70 cc Technigas next r polini green springs stock clutch 2008 zuma torque driver polini high speed variator 5.5 grams sliders Stock Carb 82 main jet 46 pilot jet needle 1 clip rich stock athena 14/42 gears 11 to 1 final ratio 56 mph

2005 Eton Beamer (Taiwan Zuma Clone) Airsal sport 70cc 9200 peak rpm top speed 42 77.5 mikuni jet needle 1 clip rich


Wed Jun 12, 2019 2:59 pm
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