Everytime i take a jump my engine stalls, what can cause this?

Im running a ST-Pro, with a C6.

Flywheel hitting the ground maybe, or binding clutch shoes, does it stall in the air, or when it lands?

only when it lands, if binding clutch shoes, do i need to replace or just rework the current worn ones?

the flywheel is surely not hitting the turn its, well spaced.

ST? do you mean Hyper ST? first, check your clutch bell bearings, make sure they are ok, then check your spur gear and clutch bell gear meshing if they are too tight, they might cause engine to stall when landing due to chassis flex. Even super strong chassis like Hyper ST Pro also flex you know...

How old is the motor? Usually when i see this the motor is on it's last leg.

I have checked the bearing, and replaced them at the track this did not solve the problem. My C6 is about 1 gallon old, just completed the break in. I have noticed that the side of the slot in the chassis for the spur gear is very close, 0.5~1mm, i have now reworked this slot by another 0.5mm so hopefully if there is flex this will give enough room for the spur gear. This is the only problem i can think of, everything else is A OK. Ill have to wait for this weekend to make sure this solves my problem.

check fuel / pressure lines for pin holes possible very small hole in tank


also if you jump and let off gas in air it might shut off if the idle is to low


check your glow plug try replacing it