Question about 1981 Yamaha XS 400 SE

1 Answer

Just picked up a free 1981 YZ125H. What is the gas/oil mixture. also does the radiator use plain water or antifreeze. Thanks

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 3,567 Answers

32 to1. That means 4 ounces of 2 stroke ENGINE oil per gallon of gas. Never use motor oil. Put a 50-50 mix of water and antifreeze in the bike.

Posted on Aug 29, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

What is the high temperature range for the coolant


Your question isn't a simple black or white question, it's all relative to how many PSI is your radiator cap and what mixture of anti-freeze your running, and also, how old or new the anti-freeze (coolant) is.

The pressure cap on a cooling system is the key to raising the boiling point of the 50/50 mix of antifreeze and distilled water. For every pound of pressure cap rating the boiling of point of the above mixture raises 3 degrees. If you had plain water in your cooling system with a 15 pound pressure cap the water would boil @ 257 degrees. If you had a 50/50 mix of antifreeze and water the coolant would boil @ 265 degrees with a 15 pound cap. The boiling point would raise to 270 degrees if you had a 60% antifreeze mixture with a 15 pound cap. If you had a 70% mixture the boiling point would raise to 276 degrees.

Mar 11, 2014 | 1989 Cadillac Eldorado

1 Answer

It is 1997 Toyota Avalon, there is a trace of overflow of coolant from the reservoir tank after test driving.(I wanted to buy that used car). Around the tank and coolant cap, some traces show overflo


The car may have a compromised head gasket, forcing air pressure into the cooling system, displacing water/coolant mixture and forcing it out into the reservoir.

This can be expensive to fix if it's the case, but it could be that it has a faulty radiator cap also.


does it have proper antifreeze/anti-boil mixture, or just plain water?
if it's plain water, it may indicate that this is an ongoing problem that the current owner hasn't fixed.

Check the cap and see if it seems loose, the spring inside should be firm, and the inner sealing ring (rubber) should not be cracked or damaged. if the system is leaking, this can cause similar issues where the coolant boils off into the reservoir.

if the cap seems fine, it will likely be a blown head gasket between a cylinder and a water passage, the problem will continue until the gasket is replaced.

Oct 20, 2012 | 1995 Toyota Avalon

3 Answers

Can you put just plain water in the radiator


no because the the engine would overheat and blow ahead gasket or freeze in winter put put 50%antifreeze and 50%water or 50/50 antifreeze

May 08, 2012 | 2002 Dodge Durango

1 Answer

Why my oldsmobile alero 1999 wont keep water in


CHECK FOR COOLANT LEAKS AROUND THE RADIATOR LOOK DOWN BETWEEN COOLING FANS AND RADIATOR SIDES FOR SIGNS OF ANTIFREEZE.CHECK ALL RADIATORS HOSES AND HEATER HOSES.IF ALL LOOK GOOD CHECK ENGINE OIL FOR COOLANT LEAKS.IF OIL LOOKS LIKE MILK SHAKE COOLANT LEAKING IN CRANK CASE.YOU HAVE A HEAD GASKET LEAK.YOU NEED TO CHANGE OIL + FILTER. GET THE HEAD GASKET FIX.BECAUSE LEAK IN THE CRANK CASE WILL LOCK UP THE ENGINE.IF CRANK CASE OIL LOOKS OKAY.YOU DONT HAVE THE COOLANT CORRECT MIXTURE.YOU SHOULD HAVE 50/50 ANTIFREEZE AND WATER.

Apr 23, 2011 | 1999 Oldsmobile Alero

1 Answer

How to change the antifreeze on 81 goldwing gl 1100


pull the return line on the radiator and start the engine. idle at about 1200 rpm til the antifreeze starts trickling out slowly. start adding antifreeze mixture til it starts spraying out at force. stop the motor and top up the tank. close the radiator, run the motor for a minute, then check again, and add or subtract whatever is necessary

Dec 21, 2010 | 1981 Honda GL 1100 Gold Wing

2 Answers

2002 kia rio 1.5, every time i drive the car i need to put about a quart of water in the radiator and fill the tank next to it. no water under the car. No water in the oil or trans. i cant find any leaks....


The water seems to leak out when the engine is running and so it is important to hve the test done when the engine idles.
So fill up and lett it idle to checck if the fault appears.
It is possible that the radiator has got a microscopic leak and is steams out at some stage for sure.
Once confirmed you wilI have to get teh radiator checked with a pressure test. check the bandages of the hose to water pump/engine.
Also the last point if the engine is heating up to oerflow off when it is running and at stops.

Aug 30, 2010 | 2002 Kia Rio

3 Answers

White smoke coming from exhaust


White smoke is caused by water and or antifreeze entering the cylinder, and the engine trying to burn it with the fuel. The white smoke is steam. There are special gaskets (head gaskets are the primary gaskets) that keep the antifreeze from entering the cylinder area. The cylinder is where the fuel and air mixture are being compressed and burned. Any amount of antifreeze that enters this area will produce a white steam that will be present at the tailpipe area.

If white smoke is present, check to see if the proper amount of antifreeze is inside the radiator and the overflow bottle. Also check to see if antifreeze has contaminated the engine oil. You can look at the engine oil dipstick, or look at the under side of the engine oil filler cap. If the oil is contaminated with antifreeze, it will have the appearance of a chocolate milkshake. Do not start the engine if the oil is contaminated with antifreeze, as serious internal engine damage can result.


How did antifreeze get in the oil or cylinder in the first place? The engine probably overheated and a head gasket failed due to excessive heat, thus allowing antifreeze to enter the cylinder (Where it is not meant to be).

More references in here.


Hope helps with this (remember rated this help) Good luck..

Jan 08, 2010 | Suzuki Swift Cars & Trucks

2 Answers

No heat when car is moving


Your thermostat is stuck open and any amount of air movement over the radiator takes away all the available heat.

Make sure your radiator fan isnt stuck on as well.

If you sit at idle the car does make heat....ok not the fan then.

Put a piece of cardboard over the face of the radiator and drive and see if it fixes the problem. If it does...replace your thermostat! Oh and be sure to remove the cardboard before you do any long range driving!

Good luck and be safe!

Dec 12, 2009 | 2003 Oldsmobile Alero

1 Answer

2001 nubira blew out radiator/has new radiator thermostat & cap/no water in oil but running hot


make sure you have 50/50 mixture water and antifreeze.make sure water pump not bad.check weep hole make sure its not leaking on water pump.replace radiator pressure cap.also check make sure cooling fan working.

Jul 12, 2009 | 2002 Daewoo Nubira

1 Answer

Changing antifreeze


remove petcock on bottom of the radiator. Then drain all the antifreeze. Then flush if necessary until clear plain water pours out. Then replace petcock and pour in 50/50 mixture until the radiator looks full. Then start and run the car with radiator cap off. It is also good to burp the top radiator hose until coolant level goes down, then keep doing this until the unit is completely full.

Jul 10, 2009 | 2005 Ford F-150

Not finding what you are looking for?
1981 Yamaha XS 400 SE Logo

166 people viewed this question

Ask a Question

Usually answered in minutes!

Top Yamaha Experts

dhnguyen

Level 2 Expert

281 Answers

vince

Level 3 Expert

946 Answers

Steve Sweetleaf
Steve Sweetleaf

Level 3 Expert

1147 Answers

Are you a Yamaha Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...