I have a MY07 Leopard, today I rebuilt the carb, checked the clutch (like new clutch and Drum), installed a new driver sprocket, new fuel lines and filter, took the head off and checked barrel (looks in very good condition).
Main gear looks 9 out of 10. The problem is that when I pressed the green button (to start it) the starter not always can make all the way out or if it does, it engages temporarily, makes two/three strokes and it retracts (even when the green button still pressed on)
Is it the battery that is weak/dead? (must be about 2 years old and it’s hooked up 24/7 connected to a battery tender). Or is it the starter that has a problem?.
Which parts should be lubricated from the starter to the main gear? with Lithium Grease?
Batteries can seem good and not be. If you have a battery store near you, find out if they can load test your battery. Another tet would be to charge the battery, remove the charger and check the voltage. Wait a day or two and check the voltage again. Should be at least 12.5v.
Check the teeth on the ring gear. Pull the bendix off and check that it’s not gummy or binding up in any way.
Battery buying note. I’d stay away from buying a battery from a battery store or any low cost battery in general. They won’t stand up to use on a track. Have a couple that didn’t last a day. Go to Comet or Russell or other large kart part distributer. The more expensive battery will cost you less in the long run.