Hey guys i picked up a little quad from my buddy, he said it ran it a few times and they blew the back bushing, It had sat in his shop for quite some time. i bought it for a good price... minus the hassle of getting it going.. i have had to redo the ignition seeing as i broke that and a couple minor details to the carb.. i have been told by a few people it is a 110 to 150cc. i have been over this thing a few times... less then two hours ago.. i cant find no vin number anywhere. i did find the engine number 1P39FMB06051057 1057 04-065.. I really hope you can help me out with this...
JoeAnNic
i will upload pictures tomorrow i cant figure out how to do it

 

Looks to me to be a 39mm bore, 50cc engine...

 

That pic I have makes it look small.. Ill hey upload better ones.. I just got my carb figured out after cleaning it and taking it apart a million times. This might be a slow question but what is with the tubless tires... My tires have been good but now the left front wont hold air for long? I got this for my son and he loves it. Is there any modifications I can get?