Engine/Break-in Jason Ashton (USA)

I am currently using a Mugen/Rex P5, bone stock no modifications.
For break in I found with the P5's they don't have a lot of bottom end when they are brand new. 
So I run about a full Gallon through them before taking them to a track or a race. 
I usually run them on the box for that gallon. 
I put the motor in, and start it up, them adjust the top and bottom screw till the motor is just barely running because it is so rich. 
Then I pull the throttle about 1/4th and turn off my car so the servo stays there. 
And it takes about 4-5 mins to run out a tank.
Most of the time I can run the gallon through it without it ever stalling.
For about the last tank I run it in the street just to get it close and to clean it out.
That is about all I do, nothing to Special. I really like to keep things simple that is my way of doing things.

TEAM TWF8 TIPS

TIP 1 ! The break-in period is 80% the key for a good running engine and a long lifetime. Try to stay below all maximum settings of the engine performance. If you are just running your car for fun, then be sure that the engine is running always at a richer setting. 
Try to warm up the engine for 2 minutes minimum by running the car at medium speed (rpm's) before asking the maximum power from your engine.

TIP 2 ! When your engine was running fine before and it does not want to start, then this is the golden rule. Open the throttle fully. 
Start the engine without connecting a glowplug igniter for 3 seconds. Lift the car and then close the throttle. Now put the glow igniter on and the engine should start, easily. If not check for fuel, defective glow-plug or whatever. But do not touch the needles. Only minor changes (all within a 1/2 turn) could be needed if the external circumstances are changed. A good running engine, does not need frequent needle changing.

TIP 3 ! Always check the engine temperature frequently, by putting some spit on your finger and then on the cooling head. If it does not evaporate the engine temperature is below 100 °C. You may close the high speed needle a little if required. If it stays for 3 to 4 seconds the temperature is OK. If it evaporate direct, then open the high speed needle until the temperature goes down. An engine temperature system is a nice feature and can prevent premature engine failure due to overheating.

TIP 4 ! After using your engine these are the things to do:
Remove all fuel in the engine and carburator by taking off the fuel line and let the engine run until it stops. Then put some after run oil in the engine and run the motor for 3 seconds on the starter box so the oil is spread inside the engine well. This will prevent rust building up inside the engine if not used for a long period.

TIP 5 ! Use a good airfilter.

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