welcome wapezoab,
so look for the service/parts manual links at the bottom of the forum home page
for starters
at 7500 miles you should put in a new belt , let me know when your ready for it
and i can send it to you or anything else you need.
the silver thing should be a shut off valve and after that should be a white/clearish
filter .
clean the carb really good... the jets & passages should be clean!
plug gap should be the same as stock but use a 8 or 9 , not the 7! which is too hot and
will seize the motor! also check what size jets you have in the carb and get back to me.
set the air screw to about 3/4 - 1 1/2 idle about 2 turns out and
re adjust when the motor is warm remember that bu adding oil to the tank
you are leaning out the mix so look for a dark brown plug color!
many times the starting motor doesn't work with the 70cc kits....
you should get about 42 mph with a kit
oilyhans
i own a scooter shop with rentals ,sales& racing parts.
i also appraise scooters for KBB.
2003 Vino classic stage 0.75
de-reged stock variator w/8g sliding weights.
1.5k rpm springs
42mph
2005 veniceLX ~70cc~upjet~1.5k rpm springs & 7gr sliders
46mph
KeyWest de restricted~8gr slide