Brand new here. I just got into RC a couple months ago after picking up my buddies Inferno MP777 (i'm almost positive it's a 777) and a Revo. Loving it!

The Kyosho has a Novarossi Rex engine on it with a Rex carb. The carb has the 3rd needle and I think that's why I've yet to dial it in properly. I found a nice little PDF on it and it was some help but I just don't know where to start.
It runs good but lacks in the low end. Doesn't "snap" after comming out of a tight turn.
What kind of turns should the 2nd LSN have in realtion the 1st LSP.

*had an issue with the arm comming off the piston the other day. Luckily got it back together without any knowledge of how to. Are replacement piston & sleeve's available anywhere for this engine?

The big brass screw at the rear of the carb must be set flush (in line with the housing) and keep it there. It is just an LSN but one that moves the spray nozzle off center of the airflow. You can finetune the engine a bit more but hardly noticeable.

Seriously leave it alone your gonna do more damage then good that 3rd needle is hard to adjust even for the most expierenced egine tuners and as in the previous post your not really gonna see any perfomance gain. if you would like to get more snap out of the motor try a new set of clutch shoes and springs. Most good sets of shoes will come with three different spring options .9 mm 1.0mm 1.1mm the heavier the spring the harder the clutch engages. Your gonna see much more out that.