Hi, I am recently new to quads and want to learn about the basics and know what i need in case i buy one this coming winter, i am currently looking at quadzillas due to them being available where i live and when looking a better choice than a yamaha raptor as i have a couple friends who rebuilt the engines on them 2 or even 3 times and always had somekind of problem. What do i need to look for when buying a quadzilla engine wise and what do i need to check before purchasing one. I heard the quadzillas are reliable and are not a bad quad overall and they do not look bad either. Also what are typical problems with the engine and what do i need to regularly check / maintain to ensure i can ride with peace and not need to worry about anything breaking, how much do they also last in terms of miles and ride time ( i know this depends on the use, i will mostly be doing off road and some street use so around the 40-60 mark if they reach that ) And to service / maintain them what do i need before hand, what oil, what sparkplugs and anything else such as coolant for summer / winter use. And if there is any aftermarket parts / components that i can invest in please let me know to explore my options. Thank you very much and i appreciate the help which i may get and hope to get into the quad scene soon!