Author Topic: Kymco Like 50 - 4 Stroke - Upgrade  (Read 366 times)

c.stroe

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Kymco Like 50 - 4 Stroke - Upgrade
« on: August 22, 2017, 12:08:11 AM »
Hello everybody,

I bought a Kymco Like 50 4 stroke in March 2017, brand new. I haven't found a dedicated forum thread for my scooter, so I am asking my questions here.

My scooter is restricted, most likely the CDI is restricted as I do not exceed 45 kmh even when riding down hill.

What I want to obtain is:
- 70, maximum 80, kmh top speed;
- a little bit more power when moving from stand still or when passing small cars.

As I do not want to spend a lot, while I know nothing about scooters, I was thinking of buying a derestricted CDI and a 70cc kit.

Could someone recommend me what to buy?

I am a plain financial analyst, wearing a suit while riding the scooter and taking the subway when it rains.

Thank you,
Cristian.

245luigi

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Re: Kymco Like 50 - 4 Stroke - Upgrade
« Reply #1 on: August 31, 2017, 01:20:02 PM »
Tough question because 2T performace theory is different to 4T performance but I would imagine 4T upgrades on other Kymcos should generally be the same across all the bikes.

I think your only option is a Big Bore Kit as I believe exhausts provide marginal improvement. I imagine you would have to increase carb and jet size along with that then tune the transmission and call it a day

Luigi
Currently:
2012 Kymco Like70
70cc Malossi BBK
Dell'Orto PHBG 19 AS Carb
42 Pilot Jet
102 Main Jet
Naraku Sports Variator (It sucks)
10g Rollers
1500rpm Contra Spring
20mm Intake
AB Collet Out
Tecnigas NextR Exhaust
TinyTach in Headset
2011 Kymco Like50 (stolen -> recovered)
PM's OK!

c.stroe

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Re: Kymco Like 50 - 4 Stroke - Upgrade
« Reply #2 on: September 06, 2017, 06:52:35 AM »
Hi Luigi, thank you very much. I was actually wondering whether you could point me what to buy. What CDI? And what big bore kit? Because I know nothing of these things, I have only heard about Malossi and Naraku.

Thank you in advance,
Cristian.

245luigi

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Re: Kymco Like 50 - 4 Stroke - Upgrade
« Reply #3 on: September 06, 2017, 03:04:22 PM »
Cristian,

Use this website http://www.racingplanetusa.com/scooter-parts-sh-1.html . Select your vehicle Manufacture (Kymco), Model (Like 50 4T KG10AA), then product group.

Engine Parts has BBK under Cylinder Sets Racing. Seems like the engine is a 139QMB. Any scooter that has a 139QMB engine will contain relevant theory.
 
There are kits made by 101 Octane, Airsal, Naraku, Malossi, Naraku, and Polini.
http://www.racingplanetusa.com/kymco-like-kg10aa-engine-parts-c-2_21286-1.html?newcPathco=25

http://www.49ccscoot.com/bbk.html

According to this webite: http://www.scrappydogscooters.com/139QMB_50cc_Performance.html

Your engine is the same as these KYMCO bikes (Kymco Agility 50 Kymco Agility MMC 50 Kymco Filly 50 Kymco Vitality 50 KYMCO Filly KYMCO Nexxon 50 KYMCO People KYMCO Super 8 KYMCO Vivality KYMCO NEW DINK 50 KYMCO Yager KYMCO Yager GT).

Even though you have a LIKE, you can go on these forums and see what upgraded configurations are being run. They should apply to your bike but confirm part fitment using racingplanet usa.




Currently:
2012 Kymco Like70
70cc Malossi BBK
Dell'Orto PHBG 19 AS Carb
42 Pilot Jet
102 Main Jet
Naraku Sports Variator (It sucks)
10g Rollers
1500rpm Contra Spring
20mm Intake
AB Collet Out
Tecnigas NextR Exhaust
TinyTach in Headset
2011 Kymco Like50 (stolen -> recovered)
PM's OK!

c.stroe

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Re: Kymco Like 50 - 4 Stroke - Upgrade
« Reply #4 on: September 19, 2017, 11:58:28 PM »
Thank you, Luigi, for your help. I've discovered that this website is very useful. In addition, the assistance they provide helps you decide what it's best to buy.

The conclusion is that I have ordered an unrestricted racing CDI, a Malossi Multivar 2000 variator and a Naraku 70cc Kit.

I will post here later on what is the outcome of the upgrades.

Best regards,
Cristian.

c.stroe

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Re: Kymco Like 50 - 4 Stroke - Upgrade
« Reply #5 on: November 23, 2017, 07:46:17 AM »
Hello,

I just wanted to revert with the outcome of the improvements. In the end, I installed a Naraku unrestricted CDI and a Naraku 70 cc kit. The start from a stand still position is very good, basically I am faster than any car.

Very good acceleration up to 35-40 kmh.

Top speed 60-70 kmh. However, I do not really ride at 70 kmh, 60 kmh is enough for within city limits as I manage to move around at the same speed as the other cars.

Consumption hasn't increased, or at least I haven't noticed.

Best thing is that now I can ride safely on the second (or third lane) without having to worry about passing cars.

NOCO Genius