My used shifter kart (engine+chassis) was $3000. Personally, I would not pay any more than that. A used kart is
NOT in good condition no matter what the seller says. For starting out, I would not buy a new chassis or engine. Everything is outdated every season, so forking out $10,000 starting out is not advised. Gear can total (cheapest) about $610. Cheap motorcycle gloves: ~$20, wrestling shoes ~$60, cheap suit ~$330, Helmet ~$200 (no nomex required, it is expensive stuff). Kart stand recommended ~$??? depends on how much you are willing to spend.
Total ~$3610± (keep track of all expenses)
<----------- that is a picture of my budget setup on one of my first few practices
Note: Don't go cheap on the helmet!!! Must be snell approved!! When choosing a chassis, pick one that is common for your local club. It will be easier to get help from other kart racers. Do not buy separate engine and chassis unless you know what you are buying! Stick withing 3 years of the current year when buying a chassis or engine.
Recurring costs will have to be calculated every session. They include but are not limited to:
fuel & premix oil (2-stroke), tires, spare cables (gas, brake, etc.), spare spark plugs, engine rebuilds ("recommended" every 20 hours of kart use.
LOG YOUR HOURS!), lengths of chain, sprockets, axles, wheel hubs, etc., and anything else I have missed.
Advice for tires: At your local kart shop they will be disposing of their used Quali/race tires, they are still in good condition. Ask if you can dig them out of the trash. Free tires saves loads of money!!!
Check this place out
Acceleration Karting