WD40 is a water dispersant and light lubricant. It is not a cleaner. While you certainly don't want water in your float bowls this is not the best way to achieve that result. No you can't use wd40 or any other brand of spray oil as a carburetor cleaner, that's oil.
On the other hand, WD-40 is safe for your device and allows you to clean the carburettor, throttle body, as well as unpainted metal parts of the machine. The dual-action cleaning system of the liquid leaves no stone unturned to provide you with a clean carburettor.
Soaking is a great way to clean carbs, and a lot of the time this is sped up by boiling them. Many people will simply use vinegar or even lemon water to boil clean their carbs.
The phosphoric acid in Coke can dissolve the deposits that build up in carburetors over time. However, it is not as effective as a commercial carburetor cleaner and can take longer to work.
Drive out moisture from flooded engines. From tractors to cars to lawnmowers, WD-40® Multi-Use Product can displace excess moisture from flooded engines. Make sure your engine is turned off, then spray the original WD-40 formula into the carburetor before re-starting the engine.
Keep grass from sticking to lawnmower blades. Lawn mower upkeep is easy with WD-40® Multi-Use Product. Spray blades before mowing to keep them clean, sharp and corrosion-free. Your post-chore clean-up will be fast and simple; wipe down the blades, and your lawn mower will be ready for its next spin around the green.
However, it's important to use a non-corrosive cleaner which doesn't harm or degrade any plastic or rubber pieces on the carburetor. You should avoid using vinegar, because the acetic acid makes metal susceptible to rust.
Spray liberally with carb cleaner – trying to direct the cleaner into the jets – and leave to soak for a few minutes. Use an air line (or a can of pressurised air, sold as an 'air duster') to blow through the jets. Repeat the previous step and this one until you can see no more gunge.
How do you clean an engine bay with WD-40? Reviewed by Shannon Martin, Licensed Insurance Agent. Your friend is right—you can use WD-40 to clean your engine bay! WD-40 actually does a really good job at cutting through the grime and grease that accumulates around your engine components.
WD-40 Multi-use Product is ideal for cleaning spark plugs. Spray WD-40 Multi-use Product on a microfiber cloth and rub over the spark plug. You can even spray WD-40 directly on the spark plug & then wipe it down using a soft, clean cloth.
Once your engine is free of debris and warmed up, it's time to get started. To do this, grab that handy degreaser spray, WD-40 Specialist Fast Acting Degreaser Spray. This fast-acting, solvent-based degreaser can effectively remove grease and grime from your engine without leaving residue.
Car degreaser can be used on most uncoated surfaces, such as metal, flooring, glass, most plastic, most rubber and aluminium. WD-40's Fast Acting Citrus Degreaser is the perfect solution for cleaning anything from alloy wheels to power tools and degreasing engine components, to minimise wear and tear over time.
When satisfied, use a low-pressure spray to rinse down your engine. A standard garden hose is fine, but you can also use a pressure washer on the lowest setting. Work from back to front, thoroughly rinsing all surfaces and removing all the degreasers. Avoid spraying electrical components as much as possible.
It's safe! But just because it won't dissolve your car's clear coat doesn't mean that using it on paintwork is a good idea. We already mentioned the smell and the greasy appearance that WD-40 leaves behind. But maybe the worst part is that WD-40 attracts dirt like a magnet.
Vinegar/lemon juice will work well. The heat and water are able to get places that a simple spray can't. That and the acidic properties help loosen and disintegrate the gunk/varnish fairly well. I boiled mine for about 4 hours each carb and they came out super clean.