Question about 1991 Yamaha XJ 600

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Yamaha xj 600s 1993 Had rust in the fuel n it entered the carbs n bike wouldn't start So I stripped the carbs down all squeaky clean cleaned the rust out of the tank New fuel lines new fuel filter Did a small service plug/oil/filter n plugs Connected all back up I have good spark n fuel in the carb chambers but for the life of me to get the bloody thing to run It turns over it wants to start u can hear it I have good compression n suction Just can't work out why it want start Any advice welcome Thanks Jamie

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Is fuel reaching the carb bowls? blocked pilot incorrct float height? fuel pup diaphram working ?

Posted on Feb 23, 2012

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Posted on Jan 02, 2017

SOURCE: 1995 yamaha xj diversion 600s bike hard to start

Time for carburator clean up , float level resetting and all, plz visit this site for more info www.xjbikes.com
Good luck!

Posted on May 14, 2010

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Hi after couple years sitting, just cleaned out the gas tank and cleaned out carburetors, stripped them down completely, they did not seem to bad. now starts right up with choke, but give it gas , stalls...


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, 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 replace the battery.
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 your air cleaner and clean and re-oil per Mfg. specifications.
6. Remove the carburetor, 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 fuel lines and replace with new ones.
8. Replace spark plug with a new one 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.
Why is my motorcycle losing power when accelerating
Difficulty accelerating
Yamaha XJ700N Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-xj-owners-manuals

Oct 05, 2013 | 1986 Yamaha XJ 700 X Maxim

1 Answer

Yamaha TW 125 Sputters and hesitates when Hot


well first thing i'd check is the choke isnt sticking on. if so the bikes running rich, hence the temperature.


if its got the paddle switch on the side of the carb, make sure its not turning on once you ride it, if its a cable check its retracting fully by lubing the cable.

and also Fuel treatment e.g. redex isnt a problem fixer, it helps do what it says but it cant beat a thorough strip down.

check your carb jets are clean theres no rust etc inside the float bowl, and make sure your running the right spark plug heat range, as if its too high a range that wont help either.

Sep 27, 2012 | Yamaha TW 125 Motorcycles

1 Answer

Carbertors need to be warmed up 1st with a blown lamp before it will start the model is a yamaha xj 900 f 1985.


hi,interesting, personaly it is not a good idea to put any form of heat close to the carburetors, sounds to me like the choke jets inside the carbs may be blocked, have you drained the fuel from the carbs, if not put your blow torch away in a safe place and procede by undoing the drain screws in the float bowl of each carb and allow the fuel to drain out, you may wish to catch this fuel in a container, stail fuel in the carbs may no ignite so easily, and replenishing the fuel may give you a better chance of starting the engine,
also instead of the heat try a small amount of easy start sprayed in to the air box, if the bike runs, it is most likely you will have to remove the carbs and clean thoroughly,
hope this helps
paul

Jan 30, 2011 | 1993 Yamaha XJ 900 F

1 Answer

1993 Yamaha XJ600 (pre divi) Mikuni carbs surging


Hi, Bevstait and the usual suspects are:
1. Extremely lean fuel mixture.
2. Dirt, rust, water, or ethanol sludge in the fuel system.
3. Sticky throttle cables.
4. Multiple carburetors not in synchronization.
5. TPS sensor out of adjustment or faulty.
6. Wrong spark plugs for the type of service.
7. Throttle bodies not in synchronization (FI)
8. Faulty O2 sensor.
9. Clogged, stuck, or faulty IAC valve.
10. Aftermarket components not compatible with ECM.
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.
New Seca II surging bogging under mid RPM load NOT CARBS XJRider com
surge at steady throttle
Yamaha FJ Owners Workshop Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-xj-owners-manuals

Oct 03, 2010 | 1993 Yamaha XJ 600 Diversion S

1 Answer

1995 yamaha xj diversion 600s bike hard to start have to use choke then sometiomes it ends up flooding carbs


Time for carburator clean up , float level resetting and all, plz visit this site for more info www.xjbikes.com
Good luck!

May 08, 2010 | 1994 Yamaha XJ 600 Diversion S

5 Answers

I just bought a yamaha XJ750 Maxim 1983. The previous owner drove it to my house (about a 20 min drive), then the next day I took it out for about a 20 min drive myself. Now, I can't get the bike to start....


You are probably right ,the carbs need a good clean and also while your doing that try a new air filter unit .If you have never done a carb strip down ,then now is your chance .It would help if you had a manual ,if not ask a friend who understands the bikes workings .its very easdy as long as you know what to do .

Mar 24, 2010 | 1985 Yamaha XJ 700 X Maxim

2 Answers

Fuel coming through the crankcase of a 650 yamaha engine


carbueretor floats stuck open allowing the fuel to pass thru freely and into the intake system in which it the goes to the crankcase as it passes down thru the piston rings. Remove, clean, and rebuild the carbs.

Jul 18, 2009 | 1982 Yamaha XJ 650

1 Answer

My yamaha xj600n was running perfect but when i tryed to start it this morning it wont start it just backfires.??


there may be a problem with the spark plug. did you wash your bike?? open up and clean ur bike's plug. or else get your carb/fuel injection repaired. Hope it works..:))

Mar 10, 2009 | 1991 Yamaha XJ 600

6 Answers

Yamaha TTR 125 L won't idle


this is very tipical. when bikes are stored the fuel varishes up the jets & needles. soak the carb. moving it back and forth in the soak solution. then blow every jet and orfice with a controlled air source. note: any speck of rust or dirt can plug these jets. pay attention to detail and do every thing twice. then install the carb and adjust it to your riding style. later Spike

Nov 26, 2008 | 2004 Yamaha TT-R 125 L

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