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Idle I tuned up my kawasaki ninja, the bike will kick but will not hold idle, i do not want to play with my tuning screw to much, is there any way to find idle

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  • Motorcycles Master
  • 3,799 Answers

Yes, you have to adjust the Idle screw. If you are referring to a "ninja" as a scooter I would take the machine to a mechanic. If you are referring to a multi cylinder sports motorcycle.I would take it to a mechanic. The only reason I say that you should see a professional is because there is no "Tuning screw" on a motorcycle.

Posted on Feb 12, 2012

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 3567 Answers

SOURCE: Tuning problems with 1985 Honda CR125

Remove the water trap bowl at the bottom of the petcock, (gas valve). Any water or trash in the bowl? Drain a cup of gas from the tank. Any water or trash in the cup? Dump it, clean it and re-mount it, ( not all bikes have a water trap bowl ).

Drain the carburetor. There should be a screw on the lower side of the carb float bowl. Remove the screw then replace it after the fuel drains. Turn the gas back on and wait a minute for the carb to fill with gas. Install a new stock NGK spark plug and try to start the engine. If the bike doesn't start and run properly then shut off the gas and remove the carburetor from the engine.

Remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray all the little airways and fittings in the carb. Remove the two screws on the outside throat of the carb and spray into the screw holes as well.
< < READ CLOSELY > >
Be sure to put these two screws back in the same hole they came out of. IMPORTANT > do not tighten these two screws down. Only screw these in until they LIGHTLY seat. Now turn each screw one and one half turns outward. Put the rest of the carb back together, clean the air filter and install the carb. Let the float bowl fill then start the engine. This process should get you back on the road.


Please rate this solution. Thanks!

Posted on Mar 29, 2009

  • 375 Answers

SOURCE: I need tuning specs for my 1982 suzuki gs 750.

You need to fix the fueling first - without fuel it won't run!
Your other problem sounds like an air leak - either the manifold or the carb. Check by spraying WD-40 or CRC at the manifold and carb join while the bike is running - if the revs change (either up or down) you have a leak.

Posted on Jun 29, 2009

co7196
  • 3433 Answers

SOURCE: My daughter dropped her 2009 Kawasaki Ninja 250r.

Do what you have to do, Keep all your screws in a bowl or jar so you will know when you have them all back in. Look at each screw you take out and you will have a mental picture for reassembly. Don't take anything apart and walk away from it. It won't tske long if you stay with it until it's fully reassembled.. Good luck

Posted on Jul 01, 2009

  • 3567 Answers

SOURCE: SPEED IDLE SCREW AND MIXTURE SCREW SETTINGS MY

ALWAYS have a fire extinguisher on hand when working on carburetors. Drain the carburetor. There should be a plug on the bottom of the carb float bowl. Remove the plug then replace it after the fuel drains. Remove the carburetor from the engine.

Remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray into all the little airways and fittings in the carb. Remove the air screw on the outside throat of the
carb and spray into the screw hole as well. Be sure to put the air screw back in. IMPORTANT > do not tighten this adjuster down. Only screw it in until it LIGHTLY seats. Now turn the air screw one and one half turns outward. Put the rest of the carb back together, clean the air filter and install the carb. Let the float bowl fill then start the engine.
Can I get a “very helpful” rating on this answer?

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Go to the site below where you can see a parts diagram for your specific bike. You will select the actual brand, year, model, etc., once you go to the site. Part numbers and prices are also shown. You can order parts from this site. In the event no price is shown on a particular part and/or the notation "Not Available" is in the description, the part is not in stock. www.babbittsonline.com/pages/parts/viewbybrandand/parts.aspx

Posted on Aug 17, 2009

  • 1 Answer

SOURCE: 1986 kawasaki ninja 600 i can get it to start up

Hardrider, I just went through this delema myself. The choke is not actually a choke like on a car. It is actually a fuel richener. There are three jets in each carb. The main jet, idle jet and the starter jet. The main and idle jet can be removed. The starter jet, which is key to the problem, is pressed in. It is the small brass jet by the main jet. This gets clogged very easily. You see, this jet fills a small chamber under the choke rod from the fuel bowl. When the rod is slid out of the way when you slide the choke lever back, the fuel in this chamber is pulled into the cylinder when it turns over. I had to use a very small stainless wire to clean it out. I used a wire cut from my wire wheel.

Disassemble each carb completely. Soak each carb in carb cleaner and wash off per instructions. Then poke the wire into the starter jet until it goes through. You will be able to blow air through it if it is unclogged. Once you do this it should fire right away and then idle. What you are doing by opening up your idle screw is allowing more air in to pull fuel in through the idle jet. Make sure you sync your carbs too. Smooth idle is also dependant on that.

I use two vacume gauges that I purchased from Harborfriegt for $12 each. I sync one and two, then three and four then two and three.

Hopefully this helps you. My bike runs like it just came off the show room floor.

Posted on Mar 18, 2010

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Having fuel issues with my 1999 zx9r, i have already cleaned entire fuel system, bike will crank if i put my hands over air intake on carb, any suggestions?


Hi, Michael # 9 and 10 are jumping up and down waving a red flag and yelling "PICK ME" otherwise the usual suspects are:
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Loose Idle screw


Hi Robert,

use little bit glue on it .Super glue or lock tight or auto paint drop is ok.
tune up and put little amount glue .it is enough to stop loosing screw.
regards,
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My 1987 kawasaki 750 ninja has a whitleing sound


u check cam chain adjustment . when was last tune up?

Mar 22, 2012 | kawasaki Zx750f1 Ninja 750r Motorcycle...

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1995 Kawasaki Ninja 250 will only run with the choke on


you have blocked jets in the carbs,,the carbs need to be removed and cleaned.

Mar 20, 2011 | 1995 kawasaki ZX-9R Ninja

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Why my 2001 kawasaki ninja zx6 die when i start slowing down? then i have to stop and start it again


Just a thought, if you are running ethanol fuel it will lower the bikes idle speed. If you run no ethanol fuel your idle speed will go up. Turn your idle screw to raise the idle . Hopefully , your problem is just that simple.

Aug 21, 2010 | 2001 kawasaki ZX-6R Ninja

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I have a 1995 Kawasaki 750, and I'm wondering what I should do to tune the bike's engine in addition to changing the spark plugs?


The synchronization of the carburators should be checked and adjusted. Its a good idea to have the idle mixture and idle rpm checked and adjusted at the same time.

Aug 17, 2010 | 1995 kawasaki VN 750 Vulcan

1 Answer

When running for a while and engine is hot it stales out and will not idle.Have had a tune-up and all fluids are fine.


My guess is you you got a fine burned engine!
You need to unscrew your spark plugs, one by one, ( not all at the same time) and screw the pressure gauge, to see how much pressure you get, when you kick start the engine. The most probable failure, is your piston sealing rings. Meaning the engine needs to be opened, and the rings to be changed.
If you can't do it yourself, you might as well take it to a good mechanic.
To say more, need more info

Aug 17, 2010 | 2001 kawasaki ZX-9 R Ninja

1 Answer

Kawasaki Ninja 250 running problem


This could be due to timing screw being incorrectly set
Locate gold timing screw on the carbrettta turn it clockwise only slightly till bike idles without choke on, Then when choke it on it should idle a touch higher.

Jun 21, 2010 | 2008 kawasaki Ninja 250R

1 Answer

My idol screw needs 2 b ajusted 2 factory settings


No you are confusing the idle screw (a thumb-screw) with the air/mixture screws, these are turned inwards (clockwise) until they lightly seat & then back out the specified amount
You should have the bike tuned by a professional who should include synchronising the carbs, this will let the engine run more smoothly, idle at lower revs ,increase speed & all-round performance speed

Ride safe
Bike-Doc
Please mark this as very helpful (if it has been!!)

Apr 24, 2010 | 1989 kawasaki ZXR 400

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In need of correct pilot screw setting for my zxr750 h2.. many thanks Andy


Rule of thumb for most bikes.
2 - 21/2 turns out from seated (not tight) position. Bike should run. Tune for max idle speed then turn down 1/4 to 1/2 turn. Should be ok.

Jun 15, 2009 | 1990 kawasaki ZXR 750

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