Last friday i receive mi 72cc kit from ENVIROMOTO.
In the kit i have the cylinder, piston, rings, clips, gaskets, jet #88, gas filter, UNI air filter and the instruction for installation.
To do a better jobm remove the motor of the frame of the scooter, it's easy to work on it.
(http://i123.photobucket.com/albums/o287/vermi_2007/Kymco/100_5265.jpg)
The first time i do the motor on the bike and it was hard to install the cylinder on the piston with the rings... I need to do the job a other time beacause the motor smoke and smell oil burn! >:( When i re-open the cylinder, i see some rings was not in good position!
But with the motor in my face, it was easy to do and for the valve adjustement.
(http://i123.photobucket.com/albums/o287/vermi_2007/Kymco/100_5266.jpg)
Here you can see the big bore kit, the piston is bigger and you can see the carbon on the piston when i use the first time i do the motor.
(http://i123.photobucket.com/albums/o287/vermi_2007/Kymco/100_5269.jpg)
I re-jet the carburator with a jet #88 and remove all the restriction inside the air filter. I didn't install the big open UNI air filter beacaus it make to much noise and it's to big to put under the seat!
(http://i123.photobucket.com/albums/o287/vermi_2007/Kymco/100_5272.jpg)
I reinstall the motor on the frame and it start the first start!
(http://i123.photobucket.com/albums/o287/vermi_2007/Kymco/100_5271.jpg)
After a ride, i check the sparkplug to see if everything was ok and the plug have a nice color and dry!
(http://i123.photobucket.com/albums/o287/vermi_2007/Kymco/100_5270.jpg)
Vermi! ;)
It's now over a week i have the kit installed and i need to check the spark plug to check if the jetting was ok.
The spark plug said it was lean again with jet #88. I buy jet #90 and #95.
Now i have jet #95 in the carburator, the motor run smooter and the color look better.
With the 72cc kit, the scooter have a better acceleration and i hit 75~80 km\h for the moment, but i need to make the running in...