Originally Posted by
maddog34
interestingly, it's so high in solvent content, WD-40 can run an IC engine for short periods... we used it to test-fire old Motorcycles that came into the shop, before pouring endless hours and cash into cleaning/rebuilding carbs and lining fuel tanks....
That brought memory's back!
I am sure Maddog you know, but for others it is also very good at finding a vacuum leak in the carb manifolds. If you have a lumpy tick-over spray around the place of suspected leak and if the revs go up the engine has pulled it in through the fracture.
Ever strap a petrol tank to a cement mixer with nuts and bolts or a chain inside to clean the inside? LOL.