Brother, if you run your bike like 'c.r.a.p' then it's gonna quit on you "sooner than later"... Let is be a 70cc Chonda or a Hayabusa...
Treat it like a swan, and it'll treat you the same for hundreds of trouble free miles...!
I've a 2001 Yamaha 100 2-Stroke... Trust me when I tell you that I check the crankcase & auto lube oil, any sort of oil/fuel leakage, excessive smoke, tire air pressure, front/rear lights and indicators EVERY SINGLE DAY!!! If there's even a LITTLE wear & tear, I go to a mechanic the first chance I get and get it sorted out... And I weekly clean up the air filter, cooling fins (with a used tooth brush) & lube the chain and tighten any nut/bolts... And I always let her warm-up for 5min before riding-off...
And trust me when I tell you that it still sounds like a new 2-Stroke! I never ride hard as I mostly keep speeds around 50-70km/h and ride sensibly & carefully...
And if you treat a Chinese Bike the same, I see no reason why it'd quit on you anytime soon...!
Most of us treat bikes like donkeys... Cylinder heads are covered with gunk, oil & dust... Crankcase is leaking oil... Tappet adjustment is off... And nuts and bolts are loose and rattling around! Headlights are missing, indicators are broken, seats are torn apart and... Well, the list goes on!
DON'T TREAT YOUR BIKE LIKE A DONKEY, AND I'M SURE IT WON'T LEAVE YOU STRANDED AT MID-NIGHT!!!
Good Day!