Hey so I'm thinking do you replace working parts with new parts at mileage / time or when they break? For me I found myself doing a full overhaul on my 66cc cg around 1000 miles or 1.5 years it worked out to be. Reason clutch or bearing failure . still ran but clutch was stuck on with grinding sound. I was on original 415 chain and idler pulley, carb, bottom end, exhaust, and clutch. cdi I replaced just because at 750 miles but ran the ngk plug all the way to 1000 miles... top end 2 or 3 times because of c clip ear failure every 250 miles.
On this new cdh pk80 build, I did all the reliable upgrades. ngk plug, magnetic fuel filter, #41 chain, new idler, lock tight, HP head, open port jug, cw10 c clips for piston, but still reused some now 1000+ mile old parts, such as carb, exhaust, throttle cable, kill switch... as of now with 218 miles it will rip to 32+ mph but i cruise around 24-27 easy with great mid range power for hills.
what do you guys do for reliability?