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When you say it’s flooding is it spitting out lots of smoke and unburned fuel? If it is then your high speed needle is too rich. Lean it 1/16 to 1/8 of a turn. If there’s not much smoke or none at then it’s too lean and you need to richen it a little. Don’t give up. You’ll get it

Sounds like your high speed needle is a little lean. Maybe turn it out another 1/16 to 1/8 turn and see what happens.

Here’s a better pic of the low speed needle.

Also another thought on your one way bearing, if somehow it got turned around and is on the shaft backwards, that would make it slip. Maybe try turning it around and see what happens.

Sorry, didn’t see your post yesterday. Here are your pics.

The only thing I can think of is the one way bearing. Maybe as a last resort clean it again and put it back without lubing it. If it still slips you might have to replace it.

I looked at my Caldera to make sure. Looks like you can’t get to one of the bottom screws without removing the engine. When you put it back in, be sure to set the gear mesh between the spur gear (big gear) and the clutch bell(small gear) It’s real easy, just put a strip of notebook paper...

You can use regular oil, such as 5w30. Will work just as well. The last one I did I forgot to lube it and it worked fine so you could probably get away without it, but I would just to be sure.

Sorry, forgot to mention be sure to re-lube the bearing. Marvel Mystery Oil works well and should help avoid more issues with the one way bearing.

You’re very welcome. Glad I could help. There’s a steep learning curve with Nitro, but stick with it, you’ll figure it all out.

Glad you got it running. Your pull-start problem is probably just your one way bearing slipping on the starter shaft. Remove the pull start and you will see the one way bearing. Looks like a nut on the end of the shaft. Clean it with some de-natured alcahol and you should be good to go. Be sure...

I have my high speed needle 2 1/2 turns out from closed. The low speed is just below flush with the collar. Seems to run well at this setting. Here’s a pic of my low speed needle.

If you changed your high speed and low speed needle settings during break in, set them back to factory settings and try again.

Welcome to RCTalk! I have a Redcat Caldera 3.0 also. You might check your glow plug and your glow plug ignitor. I had to change the glow plug half way through break-in. Also if your ignitor is the type that uses a C or D cell battery you may need to replace battery. They don’t last very long at all.