Is My chain OK ?
Out of many videos This one
 starts out correct.
Never true a wheel with air  pressure in the tire. you can ruin rim strips and tubes, and hinder the shape of the rim
To much lubricant can ruin the chain. Lubricate then
 wipe off any excess. so dirt does not cling to the chain.
Linear Side pull brakes
Remember aluminum impregnates in to the rubber pads clean your pads, keep your rims clean.
 In order to clean the dirt and rim dust off pads sand them lightly with 120 grit sand paper  .
Caliper side pull brakes