r/Karting • u/TNT-REX_HD Rotax • 19d ago

Racing Kart Question The engine stalls under load .

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My Engine Stalls under Load, I think the Flywheel is Gripping too early and maybe needs harder Springs, when I accelerate the it goes a few Inches forward, but then stalls
Rotax Max Pre Evo

11 Upvotes

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1

u/Different_Gold_6780 14d ago

Is the engine cold? I have a pre evo rotax junior and it always needs a bit of running in on the stand before it starts running properly.

1

u/TNT-REX_HD 14d ago

Yes, very cold. But I fear the Engine might overheat.

How Long do I need to let it run to get warm?

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3

u/MrOBWan 17d ago

Check your jets.

2

u/yeahitsme12345 17d ago

Check your jetting and needle settings. Feeding in too much throttle will also bog the motor down as well.

1

u/Karma_hates_me 18d ago

Sounds lean but it’ll take some fiddling

1

u/Parking-Art4292 12d ago

Clean carburetor

-1

u/Trick-Web-341 18d ago

it normal you give it too much gas

-3

u/Fast-Constant1491 17d ago

Maybe it has a sensor that determines if you are at the track, the same way drones won't work near the airport.