All the pro riders before attempting a big jump, or something hard, they "clean out the bike" by staying still, clutch pulled, and big throttle, high rpm, wait a few seconds, then shut the throttle. And only after that they attempt to make the jump.

Why is this needed? It's only needed if the bike is a 2 stroke? Or the 4 stroke is the same? It's because of the 2 stroke oil in the petrol? The oil is staying in the carb, or in the crank case or in the exhaust or what?

If the motor is running a low revs the oil in the petrol tends to condense in the crankcase so the mob give it a good rev to clear out the crankcase and avoid fluffing a plug at the off.

It's a lot easier than cleaning out thi undies

Speak for yourself Ish..

My old beta 125 2005 needed cleaning out before all big steps or climbs after being just above tick over for a minute or so i used to rev the boll**s off it and it went so much better i think its because the float levels in my carb wernt right

cheers ben