i would be they.
15x12 is for the minarelli (yamaha- jog) and 17x12 is for the morini which is your motor. you can also use 17x12. if you add a pipe or cylinder you will need to change the the weight of the slider.
you might read the history of the morini motor
http://tgbforum.com/forum/index.php?topic=496.0generally you want heavier than stock for more top end
and lighter than stock for faster take off ; understand that you rob
the top for faster take off and same goes for the heavier weights.
extra oil at worst will foul the plug , too little and you fry the piston.
the bearings will get oiled via vapor which is what the minarelli does.
you can test the oil sensor by hooking up a meter to each end
use continuity setting and lift the "float" the meter should show
a change .
your cable is $29.95 plus shipping , if it will fit in a small USMail box shipping is
about $8.50.
oilyhans
« Last Edit: July 22, 2013, 08:19:33 PM by harry »
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