101s top end overhaul

[terry saunders]

hi , just new to this forum .. I have a 101s with very scoured bore and piston,, got it in this condition .. cause?? anyway I am considering 70cc upgrade .. and would appreciate any advice'' thanks :-)

[harry]

well  you might  have  overheated the scooter  due to
many things ...
 too much air  causing a lean condition
  bad air filter ,  too big of a filter , adding a pipe without adjusting/ replacing the jets
too little oil
 wrong plug, too hot   or a combo of some of these things,

let me know if you want parts

oilyhans