20 Most Recent 1990 Yamaha XT 600 E Questions & Answers


Hi, Bikeseamus68 for this scenario you will need your service/owners manual if you can't find the best tool you ever bought for your Yamaha, despair not, for a mere $29 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
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1990 Yamaha XT... | Answered on Jun 12, 2017


Hi, Idk86 and the usual suspects are:
1. Fuel tank empty.
2. The fuel tank has old dead gas.
3. Fuel tank bottom contaminated with ethanol sludge, dirt, water, rust, etc.
4. Fuel supply valve/petcock turned off.
5. Fouled spark plugs.
6. Engine flooded as a result of overuse of the enrichner.
7. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
8. Fuel valve/petcock or filter clogged.
9. Fuel line to carburetor or throttle body pinched, kinked or blocked.
10. Carburetor float stuck.
11. Fuel injectors clogged.
12. Fuel injectors stuck open.
13. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a cursory reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead acid batteries.
14. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
15. Loose or corroded wire connection at the coil or plug between ignition sensor and ECM module.
16. Spark plug cables in bad condition and shorting check for spark leakage in the dark, cable connections loose, or connected to the wrong cylinders.
17. Ignition timing incorrect due to a faulty ignition coil, ignition module or MAP, CMP, CKP, O2, TPS, ETP, IAC sensors.
18. Faulty neutral, clutch lever, or kickstand safety switch.
19. Faulty fuel pump or fuse or relay.
20. A stuck bent or burnt valve.
21. Tilt sensor needs a reset.
22. Security system not disarming alarm needs a reset.
23. Check for engine trouble codes.
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1990 Yamaha XT... | Answered on Jun 05, 2017


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1990 Yamaha XT... | Answered on May 15, 2017


Hi, Anonymous for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere zero $ you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
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1990 Yamaha XT... | Answered on Mar 21, 2017


Hi, Wildwolf268 for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere zero $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
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1990 Yamaha XT... | Answered on Feb 19, 2017


Hi, Anonymous for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere zero $0 you can download another one. 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.
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1990 Yamaha XT... | Answered on Feb 01, 2017


Hi, Anonymous for this scenario you will need your service/owners/ manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere zero $ you can download another one. 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.
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1990 Yamaha XT... | Answered on Dec 19, 2016


Hi, Anonymous oil leaking from your air cleaner is caused by oil carryover from the engine. For whatever reason, the breather system is not separating enough oil mist and air from the piston downstroke. There are cheap and quick easy fixes and there are more expensive ones. First, make sure your breather hoses are not dry and cracked if they are ok you can start by trying the following:
1. Run your oil level half way between the add and full mark when hot.
2. Run oil breather lines from the head into a TEE fitting below carb/induction module then a single line into a mini filter under the frame.
3. Purchase Arlen Ness Super Sucker.
4. Replace umbrella valves and realign oil pump.
5. Upgrade oil pump and cam plate.
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1990 Yamaha XT... | Answered on Dec 18, 2016


Hi, Anonymous for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere $0 you can download another one. 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.
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1990 Yamaha XT... | Answered on Nov 11, 2016


Hi, Anonymous for this situation I would call my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry. 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.
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1990 Yamaha XT... | Answered on Nov 09, 2016


Until you elbow cracks

1990 Yamaha XT... | Answered on Oct 10, 2014


It is the incorrect part.

1990 Yamaha XT... | Answered on Sep 01, 2014


That's kind of normal. The wet clutch plates are stuck together from not being used. Put the bike into first gear. Hold the clutch in and rock the bike backward until it free up. If that does not do the trick, start the bike. Get someone to give you a push, and when you are moving a bit put it in gear ( always keep the clutch in at all time and do this on an open road where you can drive away if the clutch does not unstick itself). As you will drive away with the clutch in, open and close the throttle a fews times until the cltch frees up.
that does the trick all the time for me on my old scramblers.

1990 Yamaha XT... | Answered on May 20, 2014


Google " service manuals yamaha "
or go to www.repairmanuals.com
or try your local library. Often guys will donate manuals to the library.

You can get a free pdf service manual on this site;
http://www.carlsalter.com/motorcycle-manuals.asp

Please rate this solution.
( four diamonds would be nice ), Thanks wdns331m!

1990 Yamaha XT... | Answered on Oct 29, 2013


Go to http://www.carlsalter.com/motorcycle-manuals.asp . And get yourself a freebie repair manual, I am sure it will help.

1990 Yamaha XT... | Answered on Jul 07, 2013


could be worn brushes on the starter motor...

1990 Yamaha XT... | Answered on Oct 23, 2012


Sounds like a kill switch is going bad or ignition wire getting grounded along the frame or elsewhere. A bad ignition switch can do the same thing. Check the side stand kill switch if your bike has one. Check all electrical connectors. A loose or dirty connection can screw up the works.

Please rate this solution. Thanks allarismith!

1990 Yamaha XT... | Answered on Jul 23, 2011


check your ignition coil

1990 Yamaha XT... | Answered on Jun 26, 2011


Stock bore is 95 mm, Wiseco offers a 101 mm piston, some crankcase cleanup is required. Will be 672 cc monster when you're done. Actually am building one right now for a supermoto screamer. Good luck!

1990 Yamaha XT... | Answered on Jun 11, 2011


Hi and welcome to fixya,

Hi and welcome to fixya. The intake manifold should be taken as the last option. Basing from your description of the problem, the most probable case is poor firing. You will need to do a full check on timing, fuel mixture and spark.

Cutting out can be caused by poor fuel. In this case, there might be water on the carburetor reservoir. Drain the carbs. Until the muddy or rusty residue becomes clear. This procedure doesn't require you to open the carbs but if you want to be sure. You can do full carburetor cleaning meaning you clean the jets as well.

The rattling noise can be caused by timing. The timing chain maybe loose or there's a failure of one of cylinders to fire. Since you mentioned it runs fine again, im guessing there's a problem with the spark plug. Make sure you have good plugs. I recommend replacing them all at once to narrow down the problem. Even if the spark plug seem to be fine, the copper core could have been corroded. I recommend replacing it if its more than a year old and have been extensively used.

Make sure you have good fuel and air mixture. It usually is 2.5 to 3.5 turns out from a full close. but if you haven't made changes to it yet, let it be. This will save your plugs from wearing out too soon.

The leaky intake manifold can cause lose of power, and will definitely lean out the mixture. Physically check it to make sure there isn't any cracks or big holes that can let air in.

I hope this info helps.
levibit

1990 Yamaha XT... | Answered on Feb 23, 2011

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