Cool video shows the combustion process of a four-stroke engineSuck, squeeze, bang, blow... Laura Thomson 09 Nov 2018 IN CASE you were wondering... The referenced media source is missing and needs to be re-embedded. Previous Is this the strangest bike crash ever? Next WATCH: Man builds motorcycle from chainsaw and sled Sponsored ContentSubscribe to our NewsletterGet the latest motorcycling news, reviews, exclusives and promotions direct to your inboxFor more information, read our Privacy Policy Leave this field blank mpuLatest News General BMW reveals new 0% APR across several models 5h ago Workshop Clarke CTT5 3-Tier Service Trolley: The Simple Fix for a Chaotic Workshop 5h ago General Very rare Ducati Panigale V4 is going under the hammer 8h ago Industry Moto Morini importer/distributor to drop brand 9h ago New Bikes German electric moto start-up set to show off at EICMA 31/10/25More News Workshop The Clarke CML7 Hydraulic Bike Lift raises the bar for home servicing 31/10/25 Product News XCP Salt Remover promises to help fight winter better 31/10/25 New Bikes CFMoto previews major EICMA plans 31/10/25 New Bikes Harley-Davidson teases updates for premiere of 2026 line-up 31/10/25 General UK bikers detained in Iran accused of spying for UK, Israel 31/10/25