Well ,yea!.....
I set mine up on a block ,an let it idle with short quick blips of throttle to clear the engine of ecsessive fuel for 3 tanks ,
if you don't blip the throttle ,it will die ,you got to keep it running as the engine is factory set real rich for the break-in!
Then I lean the HSN in about an1/8 of a turn ,an drive the truck around through the fourth tank ,the 5th ,lean another
1/8 turn an drive it around.
The engine will start to rev high ,so you will need to adjust the idle set screw to calm the engine down!
Never let the engine rev high at this point ,an try to hold the car still ,it will fry your clutch shoes or over heat
the engine an damage it!
Monitor the heat ,an don't let it get too hot that it will sizzle a drop of water on the cylinder head!
After you achieve this ,then you can start to fine tune the HSN & LSN settings ,but ,not too much ,because
the engine is not fully broke in ,it would only need to be tuned enough where it will run & stay running for
a few more tanks!
For a final tune ,you should read up on the engine tune guide here ;
https://www.rctalk.com/forum/threads/nitro-tuning-tips-and-tuning-flow-chart.60832/
I always run my engines a little on the rich side to help prolong the life of the engine ,an to save
it from any mishaps that might accure while running the ride!...
Note;This is how I break in my engines ,feel free to get other opinions!...