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Hello my name is ***** ***** I will assist you. Are the gauges going down during the cut or just the engine looses power. If the gauges go down too, then the fault is electric related and the problem is due to a loose connection. start by checking the battery cables and the harness connection inside the engine. Check for any signs of corrosion and loose connections.
Keep me updated on your findings, if everything seems up to standards let me know so that we can diagnose further.
Ok so the engine is loosing power then, at this stage i start by checking/ replacing the fuel filter and the fuel lines ext as it may be fuel starvation. Next is to replace the spark plugs.
Check the above and let me know.