Carburettor Settings.
If your nitro engine will not start check that the needle valves on the carb are set correctly, this should be last resort, if you don’t have much experience with models make sure to follow the guide in your manual for your engine, usually the high speed needle (the one sticking out the top of the carb) is set flush with the top of the brass housing it sits in. If the engine tries to start but fails to do so, then try turning this screw in a quarter turn at a time. Also take your air filter off and look inside, the gap between the carb slide and the carb housing at idle should be around 1mm, you can adjust this with the small flat head screw with a spring on it just underneath the air filter.
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