Why is the engine smoke up and down/power tiller engine?

Why is the engine smoke up and down/power tiller engine? Assalamu Alaikum dear viewers. Today I tried to show you in this video how to stop an engine updown and white smoke. I hope you have understood a lot after watching the video, so stay with me by subscribing to the channel. Facebook Page👇 https://www.facebook.com/profile.php?... Cd engine problem    • Solving a Difficult Engine Problem: 4hp En...   12hp engine repair ✅    • ইঞ্জিনের ভিতরে ডিজেল চলে যায় কেনো। engine...   Head repairing    • Видео   Piston setting    • একটি ভুলে ভেঙে গেলো সিলিন্ডার।How To Engin...   Tappet adjustment    • 4hp diesel engine tappet setting   China Diesel engine settings China Diesel engine starting problem Engine liner piston ring setting Engine full repair Engine restoration Engine overheating problem Cd engine repairing 12hp engine repair 16hp diesel engine repair 20hp diesel engine repair 25hp diesel engine repair 28hp diesel engine repair 32hp diesel engine repair Power tiller gearbox fitting All engines repairing channel ✅ #engine #power_tiller_engine #12hp_engine #repairing #tractor