Question about 1986 Yamaha FJ 1100

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My bike wont idle correctley. what should i do first to try and fix that? i know the carbs may need to be cleaned because it sat for 1-2 years. if i clean them and it does not fix the problem, then what?

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Clean them, then see if it works.
( be sure to clean the idle passages carefully.)

Posted on Jul 20, 2009

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Bike sat up for 3 or 4 years. recently cleaned the carb, changed the plug and oil and bike started. Tried starting it recently and it wont. Seem to be backfiring sometimes when kicking it over.


clean plug .. although new plug if old fuel or unbalanced carb it may quickly foul. if this works you may need help to work out whats causing plug to foul.

Mar 10, 2013 | 2001 Yamaha YZ 426 F

1 Answer

The bike wont rev up, spits and sputters idles fine. carbs have been cleaned and sinked new plugs and fuel filter.


Hi, Marvin 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 websites below. Good luck and have a nice day.
Start Motorcycle Garaged for Over Year
Won Rev Up
http://www.yamahaventure.nl/pdf/servicemanualxvz13tf.pdf
OEM parts for Yamaha
http://www.starmotorcycles.com/assets/service/manuals/1998/Lit-11626-11-17_320.pdf

Aug 07, 2012 | 1996 Yamaha Royal Star XVZ 1300 A

1 Answer

1983 kawaski kz100 spectre high idle to keep running


Have you cleaned the tank, fuel can cause steel to rust, drain carbs and blow the jets out. Then make sure you change (or fit) the in line fuel filter, they are cheap and easy to replace and save problems like this.

Dec 17, 2011 | Motorcycles

1 Answer

Cleaned everthing top to bottom ,bike sat for a while gas was bad,it idels fine,but now when i give it gas it dies,i think its the auto choke?it puffs black smoke when it dies,can u dissconect chocke?


try replaceing the slow jet inside the carb its 3.95 part little brass screw inside card tech at harley said if that jets plugd bike wont hold a idle it mite start but no idle i replaced mine and bike runs fine i had the same problem trust me that little screw will be the difference in running and not running it has tiny pin holes that will never be cleand out good enough spend the 4 bucks its worth it easy fix take carb off remove the bottem of carb off ull see the jets the slow jet is the 1 that is deep down the hole its a little brass screw with pin holes in it

Jul 10, 2011 | 2001 Buell Blast

1 Answer

2001 ttr 225 bike sat all last year. Would start this spring but not idle. Now it won't start. I know the carb had old gas. Where can I find a manual so I can take it apart and know what parts to...


Start by removing and cleaning the carb, it may not need any parts.
also change the oil, fit new air filter, new spark plug, and check the valve clearances

May 27, 2011 | 2002 Yamaha TT-R 225

1 Answer

Bike has sat up for a year or so,wont start,cranks fine,has spark,maybe bad fuel ?


If no fuel stabilizer was added while the bike sat for a year or so.
It is most likely bad fuel with gum deposits.
This can can create some problematic symptoms for you.

It is vital the bad fuel to be cleared from tank/lines and carbs.
You may need the fuel system cleaned as the gum deposits can cause major headaches in the carbs and jets. If the system is not cleaned and even after you get the bike running, you could be miles away and have the fuel fowl jets/injectors, causing shut down.

Check the spark plugs carefully. Oil on the plugs may just need cleaning. Once you get the bike running the oil should burn off if the rings are still in good shape.

Motor needs clean Air, Clean Gas and a hot spark.

Good luck!

Oct 04, 2009 | 1995 Yamaha XV 535 Virago DX

1 Answer

Bike sat and now wont run right


first of all i would change the spark plug, then change fuel and makle sure ,carb is letting in fuel make sure , float is not stuck

Sep 07, 2009 | 2001 kawasaki VN 800 Vulcan Classic

2 Answers

Bike sat for awhile, runs but doesnt idle very good. cuts out


I would remove and clean the sparkplugs - sounds like one may be fouled.

Aug 18, 2009 | 1994 Yamaha FZR 600

2 Answers

1981 gl1100 has 4 keihin carbs bike sat 7 years soaked carbs and cleaned. runs well over 2000 rpm but won't idle. Was told might be idle jets plugged but can't find which jets are idle jets in my service...


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648d54b.gifWhen removing the pilot jet screw, count the number of turns to remove. Put the screw back the same number of turns then unscrew 1/4 turn.
A “very helpful” rating on this answer? Thanks!

Jul 02, 2009 | 1981 Honda GL 1100 Innerstate Gold Wing

2 Answers

FXR suzuki 150 will idle but wont rev


i had the same problem ! i dont know how but there was water mxit in my tank and i dumpd the fuel then it was fine

Mar 16, 2009 | 2001 Suzuki FXR 150

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