No-Limit Hold'em, $0.05 BB (6 handed) - Hold'em Manager Converter Tool from FlopTurnRiver.com

UTG ($9.01)
MP ($2.41)
CO ($2.62)
Hero (Button) ($5)
SB ($3.36)
BB ($2.62)

Preflop: Hero is Button with K , J
UTG calls $0.05, 2 folds, Hero bets $0.22, 2 folds, UTG calls $0.17

Flop: ($0.51) 4 , A , K (2 players)
UTG checks, Hero checks

Turn: ($0.51) 3 (2 players)
UTG checks, Hero bets $0.30, UTG calls $0.30

River: ($1.11) J (2 players)
UTG checks, Hero bets $0.64, UTG raises $1.28, Hero?

villans 43/3/1.4 over 84 hands

I snap call this. Villain usually shows up with Ax here.

Also I would consider betting the flop. You are the PF raiser and you will probably take it down there. Also you will get a better idea of what your opponent has. Checking gives you no information. If he calls he will usually check the turn and you still get to the river with the same price...the added bonus is that you have a high percentage chance of wining the pot. Check/bet turn screams you have a king.

I disagree with this. Villains range here is pretty much small pocket pairs, suited connectors and Ax hands. Betting the flop pretty much just helps to valuetown ourselves against Ax or a set and folds out all the missed pairs or connectors that have hit a pair that we can get value from later. Betting for information or to 'take down the pot' is usually wrong.
Whats the point of taking down the pot now when all the hands that fold are way behind, and may call bets on later streets?

I like the line hero took on this hand, and would snap call the river. The only hands that make sense and beat us are A3/A4 or 33/44 although there is a chance that he would have lead the turn with these hands.

Since the guy is 43/3 hi range on the flop is huge, way bigger than small pocket pairs, suited connectors and Ax hands.

I probably call river, but I don't love doing it. He is so loose preflop he could pretty much any two pair like K3, 34 or maybe even a lone Ace sometimes.

Oh true, didn't even see the stats down there. My point remains.

He did limp UTG so 43 is a possibility. I call here as it's an odd line for anything that beats us to take.

he took a wierd line..

I think I play it the same and call river.

What do each digits stand for?

they're PokerTracker stats.
they mean VP$IP/PFR%/AF

which basically means:
Voluntarily Put $$ In Pot - the % of the time you call/raise preflop. 43% means the guy plays about 43% of his hands

PreFlop Raise % - the % of time he raises preflop instead of calling. So he raises about 3% of the time preflop. (Is this 3% of the time total, or 3% of the 43% of hands he plays? someone who's better with these help me out)

Aggression Factor - not sure exactly how they come up with this, but it's basically a number based on how often a player bet/raises, calls, and folds after the flop. the higher the number the more they bet/raise instead of call.

there is (or atleast used to be) a good sticky on this that explained all the stats and good/bad ranges for them

Meh, it looks all along like hero is value-betting a decent K.
I'd call and expect to see a really weak A.

You have to call the river. It's not the greatest though.

no one thinks a guy this loose could have QT?

Sure, but it's a relatively small part of his range.

Villain will have Ax here a lot.

Hand is played perfectly if hero calls river.

I think that's part of the point.
A guy this loose shows up with <.....................................> a ton of hands here.
Many of them, we beat. So we call.

my first thought was a shove, but we're only getting called if we're beat. a pretty confident call imo

Sure, but if you fold, you're not putting him your opponent on a realistic range. He can have a ton of hands that he plays this way, not only the nuts.