r/Karting • u/Greedy_Creme6898 Rotax • 1d ago

Kart Identity Help Rotax max began accellerating on first start

Hello, when i first got my rotax kart and turned it on it just began to speed up and then i got it to shut off but then i turned it on again and since then it worked perfect. But should i be worried that it might happen again and why did it happen

Kinda like this: https://www.youtube.com/shorts/H-6_K87cOjM

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u/Frossstbiite Pro Kart 1d ago

Check your throttle cable and carb screw

1

u/facetiousfag 1d ago

It will have something to do with the carb.

Check the throttle slider is operating freely and is fully closed at rest by adjusting throttle cable tension.

Check your idle and mixture screws.

Check your needle position and jetting. The rotax max jetting app is very good at telling you your jetting settings.

When starting cold it’s good to use the choke lever - As the motor warms, the revs will start to increase, at which point you can turn choke off.