I have read a ton of these posts on tires and the different preps used to reach a certain Duro reading. How important is it to a jr beginners success to have the tires perfect? Does the proper duro matter at this stage of the game? How much attention should be placed on tires ? Besides tires what else should a beginner dad concentrate on when learning how to set up a kart?
Go race. It's first about seat time, seat time and seat time.
Both chassis adjustments and tire adjustments, involve learning what you need to do, to change how your kart works out on the track. The general learning curve all go through is about gaining experience in different areas, so you can put problems in those areas for the most part, out of the way. Along with learning to drive and race I think this is the general sequence you'll go through. First it's is my clutch set right and my engine ok. Most often that phase is fixed by learning how to rebuild and set your clutch or buy a new clutch and learn to set it. The engine curve goes the same way. Most end up just biting the bullet and buying an engine they know should be as good as most out there.
Then comes learning how all the adjustments on your kart effect on track performance.
That takes study and learning to see changes out on the track. You'll become skilled in chassis adjusting, when you get to the point where you see an on track problem and no longer have to think about what adjustment to make. You will think in terms of how you need to change the operation of the kart on the track, and will look to adjustments only with the idea of how they will make the chassis or tires do what you already know needs done on the track. You won't look for a specific adjustment to fix a problem, you'll sort know how each will change the flow of forces on the track, and select one or more things to alter how forces work on the track.
Then there's tires.
Changing how tires work with the track, will change how forces move around and through your kart out on the track. It makes this and the last paragraph work together. Do you change how forces are applied to tires and make tires work differently, or do you change how tires work via prep air pressure, etc., to move forces around.
All that to say it's first seat time, seat time and seat time.
Then get your clutch and engine in the ball park.
And last if not first, find out what are a general set of tires you can put on the kart and how most prep them. You'll get told an answer about it that you'll need this set early on, maybe another mid way during the race time, and maybe a different set for the feature. Find out what the mid way tires are for your track, get them first and then it's seat time, seat time and seat time, along with learning how chassis adjustments effect things.
... sorry to be confusing, I do like to write and only use anything I write to mix into what others write, because in racing ... it all depends. ...