A 76 is a small rear sprocket, it will take a bit of pushing to get it started. With a bit of practise and the correct tickover screw setting, it'll take no more than when on any other sprocket. The key is to throw the kart before you drop it.
You say you're getting ready for your first track session. Can I take that to mean you're running the karts somewhere other than a circuit and therefore going much slower than you would otherwise? If so, you can easily stall the engine at low speed, especially when on such a small sprocket.
TKM is extremely simple and if you follow a few simple procedures you'll never have any problems:
1) Fresh spark plugs. If you're racing, a fresh one for every meeting.
2) Carb kits. Again, if you're racing, a fresh one for every meeting.
3) Carb pop-off. As a minimum you should check the carb holds pressure, pop's off at some reasonable value (12psi say) and holds at some reasonable value (8psi say).
4) Jet settings. Yours are a good starting point that will give you trouble free running.with this jet closed.
5) Tickover screw - for direct drive this should be set such that the kart, when started, will move at a very gentle jog.
6) Filter your fuel.
7) Filter your fuel.
Keep on top of these things and you'll have trouble free running between engine rebuilds (I'd recommend every 8 hours running). Generally, the only other area of concern is the ignition but these don't often fail. Just keep an eye on the spade connectors and the earth strap.
In terms of gearing, at most circuits you'll be aiming for somewhere between 15,000rpm and 16,500rpm (stay in the low 15,000rpm range if you're just driving for fun).
|
|