Question about 1983 Yamaha XS 400 L Maxim

1 Answer

1982 Yamaha maxim 400 turns over will not start

Been parked for 2 years with gas left in tank

Posted by Anonymous on

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  • Yamaha Master
  • 40,793 Answers

Hi, Anonymous if your bike has been sitting idle for months or years and you did not do any pre-storage maintenance I feel your pain it will probably have a dead battery and not want to start or if it starts it will idle and run poorly then stall, here are the following steps necessary to complete in order to get your bike back to an acceptable running condition.
1. If your battery was 2-3 years old when you last had the bike running you should replace it.
2. If you believe your battery might still be serviceable remove it from the bike and put it on a 1 or 2 amp trickle charger for 24 hours. If it is the old lead acid type with visible cells and acid levels fill each cell to the top line with distilled water and replace the caps, run the vent tube into a plastic or styrofoam cup, any cells that are cloudy/milky replace the battery.
3. After charging remove the leads and let the battery sit for a couple of hours then check the battery voltage with a volt meter, you should have 12.5 volts or better, any readings in the 11 volt range you need to do a proper load test on the battery and replace as necessary, any readings in the 10 volt range you have a dead cell and the battery needs to be replaced.
4. Drain and flush fuel tank, google " how to clean a motorcycle gas tank" find a couple forums to view the different options available.
5. Remove and inspect your air cleaner paper elements that are not oil soaked can be cleaned with a soft brush and low pressure compressed air, oil soaked elements must be replaced. Gause mesh and foam elements can be cleaned by soaking them in a container big enough to completely cover them with a solution of 1 gallon of water and 1 oz. of Dawn dishwashing liquid for small and medium size elements, for monster size double the formula and let soak for at least one hour then rinse with warm water shake off excess and let air dry, "WARNING" do not use compressed air as this will embed micro-sized dirt and road grime and destroy the mesh pattern and stretch foam elements out of shape just squeeze it like a sponge and let air dry, use a fan if you're in a hurry. When completely dry spray a very fine mist of air filter oil evenly around the whole element.
6. Remove the carburetors, disassemble and decontaminate with a carb dip or if you have EFI remove injectors and clean with carb spray and compressed air
7. Remove fuel valve and filter disassemble and clean as necessary, remove, clean, and inspect fuel and vacuum lines and replace as necessary.
8. Replace spark plugs with new ones and check for spark.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
Yamaha XS 400 SH Service Manual ENG XS360 2D XS400 2E 2F SG Supplement ENG...
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-xs-owners-manuals

Posted on Nov 21, 2016

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Posted on Jan 02, 2017

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SOURCE: I have a 1982 Yamaha Maxim 550, the left turn signal

The flasher may be out

Posted on Aug 12, 2009

  • 31 Answers

SOURCE: 1982 XJ 650 maxim cylinder 2 & 4 won't run

Are you saying that 2 & 4 got gas with external tank but not with gas tank? If so something else has happened ,if gas is getting to the carb it cannot by-pass 2 to get to 1. Take the tank back off ,connect to external, again. See what happens.

Posted on Sep 11, 2009

  • 133 Answers

SOURCE: my bike has been sitting

my guess would be that water got into the gastank fuel line and carb you might want to check those thing fallow this link this will tell you everything you need to know about your bike and more

good luck!

http://www.bikebandit.com/1982-yamaha-xj650-motorcycle-parts/oem-parts/s/mg7971

Posted on Mar 24, 2011

  • 3567 Answers

SOURCE: i have a 1982 yamaha 650 turbo should i connect

You must mount the tank and hook up the fuel feed lines. But you do not need too bolt the tank down just to start the engine.

Posted on Apr 26, 2011

heimlich
  • 1978 Answers

SOURCE: where is the oil filter in a 1982 yamaha maxim 400

Your oil filter is located underneath the motor. There is a round cover 4" to 5" in diameter next to the drain bolt. The cover is part #1 and the oil filter bolt holding it on is part #4 on the diagram. http://www.bikebandit.com/houseofmotorcycles/1983-yamaha-xs400k/o/m8258#sch208022 To change your oil you will need 3 quarts of oil, a filter, and a new aluminum drain plug washer. You can reuse the old drain plug washer if it has not been squished out of shape. Your motorcycle comes from Yamaha usually with 20w-40 mineral base motorcycle oil. You can use any oil that is JASO MA certified motorcycle oil. 10w-40 for cold climate. 20w-50 for warm climate/touring. Car oils use different additives and may cause scoring in certain types of cam bearings. Do not use any oil that says " Energy Conserving " on the label . It will shorten the life of your wet clutch and transmission gears. If you choose Synthetic oils, they will help your bike run cooler and shift easier. Pour in 2.5 quarts of oil to reach the high mark on the dip stick or inspection window. Make sure the motorcycle is upright or on the center stand when checking the level . You will probably need 3 quarts to hit the high mark. Run the motor for a minute or two to fill the oil filter compartment with oil. Now recheck the oil level and top up as needed. If you want to try an inexpensive full synthetic oil that is JASO MA rated 15w-40 Shell Rotella T Synthetic fits the bill at about $22 per gallon. All brands/manufacturers make a motorcycle oil. Some are very hard to find. Just make sure that the oil you pick has the JASO MA Japanese engine Rating to protect your motorcycle engine.

Posted on Jul 21, 2011

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My bike has been sitting beside our garage for a couple years now, and it will not start now. I have checked for spark, and that is good, so i don't know what's wrong. If i need to get my gas tank off to...


my guess would be that water got into the gastank fuel line and carb you might want to check those thing fallow this link this will tell you everything you need to know about your bike and more

good luck!

http://www.bikebandit.com/1982-yamaha-xj650-motorcycle-parts/oem-parts/s/mg7971

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Are you saying that 2 & 4 got gas with external tank but not with gas tank? If so something else has happened ,if gas is getting to the carb it cannot by-pass 2 to get to 1. Take the tank back off ,connect to external, again. See what happens.

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