Sport & Outdoor – Others

Experienced athletes share their insights in answering this question:
Could be a head gasget or air in the water system. I would check to see if you have water on or in a cylinder…

How to Identify and Resolve Common Issues ?

We offer a diverse range of insights on identifying and resolving common problems in sports. Our sources encompass academic articles, blog posts, and personal essays shared by seasoned athletes. :

You may notice radiator coolant (antifreeze) leaking under your car. Where the leak is coming from can tell you a lot. If it is coming from directly below the exhaust manifold, this is a clear indicator that the head gasket is failing and needs to be replaced.
Sometimes your ATV`s front screen can be the cause of overheating. If you`ve been trail riding in the mud, the caked-up debris could be the cause. If so, it`s a quick fix! Remove the screen by gently pulling the top of it first, then the lower half.
Pre-mix the radiator fluid with distilled water, a 50:50 mixture. If needed, you can also add antifreeze or an additive that doubles the wetting ability of water. You should always refer to the owner`s manual to check for correct ratios depending on the climate where you ride your ATV most often.
Sometimes, the damage is only between the coolant channel and combustion chamber. This means that coolant is leaking into the engine, but not into the oil. That means you won`t find oil in water or water in oil.
When the engine cools down completely and exhaust gasses exit the combustion chamber, condensation of water and carbon dioxide can be noticed much more, and in a moment like this, you notice water dripping from your car`s exhaust pipe. This is completely normal and you don`t have to take your car to a professional.
Simply put, overuse is the most common reason for overheating. However, overheating might indicate a few other problems that you should check out for your vehicle`s well-being. First, the radiator might be dirty or clogged with debris.
Engine Ice is the #1 coolant and antifreeze for your SXS or ATV, but don`t just take our word for it; readers of popular magazines like UTV Action and Dirt Wheels have chosen Engine Ice by a wide margin over our competitors.
Technically speaking yes you can use plain water in your cooling system but it isn`t recommended as a long term solution and certainly not in extreme weather conditions. The problem with using water in your cooling system is that water freezes at 0°C.
Head gasket failure can also lead to hydrolocking, with coolant entering the pistons rather than keeping to the coolant chambers that course around the engine block to eradicate heat. Head gaskets generally fail due to thermal expansion that is too quick for the gasket to deal with, forcing it to crack or split.
White Smoke

It usually means that coolant is being burned in the engine, which means that something is drastically wrong. The most common cause of this is a blown head gasket, which can quickly lead to an overheating engine.


It`s normal for your engine to have a little trouble getting started when it`s cold, but once your ATV starts, let it idle for about five minutes to let it warm up. You should also take it slow for the first few minutes that you`re riding.

If your car is overheating, you should pull over at the first safe opportunity. Don`t touch the hood until you`ve given the vehicle at least 30 minutes to cool down. There are many reasons why a car would overheat, but issues with your coolant or your radiator are the most likely causes.
Typically, your ATV or UTV coolant should be changed every 60 months.
Most modern ATVs are liquid-cooled, which means that they require radiator fluid. Also known as coolant fluid, radiator fluid flows through the cooling system and absorbs excess heat from the engine. It moves to the radiator once it has absorbed heat (hence the name).
Typically, an ATV`s radiator is mounted above the front rack. If you intend to get deep in the mud, you should relocate it up and away from all the muddy water that you`ll be riding through. When you take the time to relocate your radiator, you`ll have peace of mind knowing that your 4-wheeler engine will be safe.
The two types of glycol most commonly used for liquid cooling applications are ethylene glycol and water (EGW) and propylene glycol and water (PGW) solutions.
Running just water in your car`s radiator will guarantee overheating and damage, including to your cylinder heads and engine block. And most tap water contains minerals that will leave deposits inside the radiator, causing corrosion, shortening its life and further diminishing its ability to cool.
Only Use Water In The Radiator In An Emergency

If it`s really low or actually empty, you need to add fluid to your vehicle. While it`s ideal to add a 50/50 mix of coolant and water (or a pre-mixed coolant), if you absolutely have to keep driving, you can add water to the radiator to get you to your destination.

Is it safe to drive with a blown head gasket? No, the sooner you get it fixed, the better. Aside from the damage it will do to your engine, driving with a blown head gasket can be dangerous.
A bad enough head gasket leak will cause the engine to lose compression. This can lead to the engine running roughly at idle, knocking and even stalling. However, other problems can cause the engine to run roughly or knock.
Milky, frothy oil on the dipstick could mean you have coolant leaking into your oil pan, but doesn`t necessarily mean a bad head gasket. This symptom is too often mis-diagnosed as a bad head gasket with unneeded repairs performed. There are many other things that can also cause this and it is rarely a headgasket.
How much coolant loss is normal? Providing that the engine is running well, with no leakages or damage, you can expect a coolant loss of 0.25% every four to six months. This means a loss of two to three ounces a year is completely normal.
When they blow, intake manifold gaskets and head gaskets will typically leak different substances. A blown intake manifold gasket may cause air or fuel to leak. A blown head gasket, on the other hand, will typically cause combustion gases, coolant or oil to leak.
Milky Engine Oil

A blown head gasket will allow oil and coolant to intermingle, giving it a milky-brown look. While some of these other symptoms may have other causes, milky oil is almost always caused by a bad head gasket–so if your oil looks like this, don`t hesitate to bring your vehicle in for repair!

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

I have a atv honda rubaicon 500 and it runs but blows water out of radiator
ANSWER : Could be a head gasget or air in the water system. I would check to see if you have water on or in a cylinder…

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I have a 99 yamaha f100 four stroke outboard. Problem I have is boat will acclereate fine get up on plane and after running for about a mob at wot will decell and only run around 4500 rpm. Then after coming back to idle will have a slight miss then run smooth and repeat every run. Changed the plugs and fuel filters alll oe yamaha has fresh oil timing belt is good any ideas will help or fuel psi spec. I am an ase master automotive tech so I know alot about engs. To me it feels like it’s running out of gas. Like the carb bows are full when I take off but then runs out after running wot. Any info will help
ANSWER : I have exactly the same problem with my Yamaha F100, have you got any solutions yet?

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Water in the crankcase
ANSWER : Hello there:
I am sorry to tell you this but a upperend overhaul is going to be your best solution i have worked with johnson/evirude to bayliner products for over 15 years experience and certifications and this is a common problem unfortunatly the repair isnt ok ?
contact your local authorized dealer for further repair details.
best regards mike

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Water system in my Coleman pop up not working
ANSWER : There is a 3 port valve conneted to the incomming water line (white usually). It is actually a check valve to keep the outside water from overfilling your tank. Verify it is installed correctly.

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I have a 2001 Yamaha XL700Z Waverunner. The compression on both cylinders is about 120, it starts and runs fine – dry. Won’t quite idle, but I can start it and rev it up fine (for a short period, of course). However, as soon as it gets in the water, it will barely run – it will start and sputter and you cannot get it to run more than a few seconds or rev up. Take it back out, let it dry, starts & revs fine. It is not getting any water in the casing that I can tell, its almost as if water is getting something wet through the cooling system that I cannot see?
ANSWER : Try cleaning the carbs and the fuel lines, filter

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I have Detroit 60 series installed on a launch. Recently the Starboard unit suffers a catastrophic failure and piston No2 came out of the block, making a big hole. This engines are using heat exchangers, and sea water cooled Charge Air Coolers and sea water self priming raw water pump. We contact the local dealer an the veredict was a “Massive salt water ingestion” that caused an Hydraulic lock and damaged cyls 6 and 2. They say that the water came from the deck covers, but there is no way for that to happen, I think they dont want to honor any warranty, because we suspect that the water came from the Charge Air Cooler. I want to know if the CAC can cause that type of failures and if anyone had a similar problem. The engine cost is about 66K and only had 2300 hours.
ANSWER : I would have to say that a sleeve got pitted or lost an oring or the CAC sprung a leak. I believe you are correct in your assumption that the water did not enter the unit in the manner they are saying. The only real way to tell is a complete tear down and someone is going to have to pay. They are also a high maintenance item and someone is going to say that the preventive maintenance was not done.

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I have a volvo penta md7a marine diesel engine fitted in my sailing boat. Recently, I changed the bottom sea **** which was almost blocked. Apparently the new sea **** is working well as it should. But this week with no apparent reason and without use of engine, I noticed that the cooling system water cup (the recipient which connects with the sea **** hose and the water pump hose) is empty and it Im not able to keep it full like it was before.The water vanishes every time I tried to fill it up in order to keep the water running throught the system. However the waterpump seems to be working. But almost no water is coming out of the exhaustor, of course, just a few drops once in a while. What might be going on ?? Thanks.
ANSWER : I don’t have a picture of the installation, but I can imagine a water filter above the water line with an improperly fitted cover and an air leak that lets the seawater drain out – losing the prime. Old Swampy in New Hampshire

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