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Dan Wilson Posted on May 02, 2019
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1997 Ninja was stuttering around 120 klm then loosing power. Changed plugs, air filter, filter in tank, also tank cleaned, carbs cleaned. Still doing it

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Noel Bennett

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  • Expert 47 Answers
  • Posted on May 02, 2019
Noel Bennett
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Joined: Dec 06, 2008
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That vintage of motorcycle I would be checking the plug wires and plug caps for breakdown. Find the darkest place at night, rev your engine and look for arcing from your wires to the engine. It's also time to check for any deterioration of rubber hoses and components. Beautiful bike you have there!!

Testimonial: "Thanks mate. Cleaned carbs, New plugs, new air filter, new fuel pump, Cleaned tank, cleaned tank, new filter on tank, new fuel filter.. Now worse than before"

  • Noel Bennett Jun 03, 2019

    So you didn't check plug wires and caps!!!

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5 Related Answers

alicantecoli

Colin Stickland

  • 22516 Answers
  • Posted on Jan 31, 2009

SOURCE: 1981 Vanagon (air cooled) hot stutter

change the flexible feed pipe for the servo it runs off the inlet manifold left side to a metal pipe,if this goes porous then idle is rough brakes dont work right and as it get hot it will run like a demented old woman who smoke 80 a day

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Anonymous

  • 1167 Answers
  • Posted on Sep 08, 2009

SOURCE: how to clean carbs on a 92 ninja 600R ?

TRY THIS SITE BUDDY http://knol.google.com/k/evan/how-to-clean-a-motorcycle-carburetor/1cxrwhqe214sz/2#

Anonymous

  • 957 Answers
  • Posted on Apr 28, 2010

SOURCE: my cub cadet tank stops running 5-20 minuts after

Yes you may need a carb kit. It is not good practice to by-pass the fuel filter. The orifice in the jet is very small.
But anyways, There Could still be a blockage inside the carb, a small leak at the manifold, or the jet is worn out.
Let me know how it goes.

Anonymous

  • 1 Answer
  • Posted on Jun 21, 2010

SOURCE: 1997 Yamaha Kodiak 400, hard to start, once you

I would follow the fuel line all the way check the filter it should be inline and check the pump as well i would say its one of them two.

tombones

  • 3567 Answers
  • Posted on Apr 04, 2011

SOURCE: 1997 Honda CBR 1100 XX.

Clay, you have a tiger by the tail. There are a lot of little parts to the carb system. I will try to assist you in the basics without carb removal. This may require a few replies back and forth. Start by turning off the gas then drain the carbs. Now turn on the gas and check to see that fuel flows into each carb. If gas starts flowing out of all the float bowls, now that the gas is back on, then all carbs are getting gas. To drain the carbs just remove the drain screw on the bottom of each carb float bowl. Two carbs have the drain screw on the left, two have it on the right side. Reply with what you find. tombones49_51.gif

Testimonial: "Tombones45 is helping me with a problem out of my knoledge. He is awsume and responds. Thanks again. We'll get it fixed."

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Cub 1550 with kohler courage. Runs fine and then loses power, runs erratic and starts to backfire. Cleaned carb and fuel pump and ran fine for 30 minutes and then problem started again. When this occurs,...

Replace fuel filter after cleaning tank thouroughly, to clean tank remove fuel line at carb. Drain all fuel then leave line loose until you flush tank with carb. Cleaner then blow out tank with compressed air. Now install new fuel filter and check your fuel can for trash and water better yet just add fresh fuel.
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I have a Kawasaki Ninja, ZX6r, 1997 F3. The bike starts great and rev's great when standing. At high rev's its as sweet as a nut. The problem seems to be when riding the bike and the revs are below 4,000....

There are adjustments on carbs for low speed air intake (air mixture screw)find out factory settings and reset that mixture.Sounds to me like those adjustments are out of sink.If so the bike will run very bad from idle to about 1/4 throttle then run great from there up to full throttle.this definitly sounds like carb problem.
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Wow, quite a long time in storage. Anyway when you store it so long you need to clean and replace everything, YES, everything thatr can be affected by moisture, dust and condensation.
Main concern must be for all fuel and combustion systems flows including re-newing all oils before using the bike again. Have you cleaned the carb and fuel lines? Change the air and fuel filter?
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Have you changed the pipes or air filter, if so go to the next size jet, it wont hurt. You might check the tank filter also, unscrew the petcock,see what the filter looks like!
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Is it all stock or have you added a pipe or a hi performance air filter? If you have, it needs bigger main jets, if not try cleaning out the filter in the gas tank and screen in the petcock, if it has one
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2008 ninja 250 it starts but as u give it gas it stutters and dies i sprayed water on the left exhaust and it not as hot as the right side

I would start off by removing the fuel tank, I would then remove the line from the tank to the carbs and lightly and gently blow air from a hose into the carbs, this will free up any dirt or trash that may have gotten into the carbs.
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Kawasaki ZZR400 Won''t start, Looses power in top Gear

Hi and welcome to FixYa,

Initially, would suggest:
  • a thorough cleanup job on the carbs;
  • inspect, clean the rubber couplings from carbs to intake manifold;
  • inspect tighten coupling clamps;
  • ensure no vacuum leak when re-assembling;
  • inspect, check, ensure air intake box seating to the carbs. Very important, there should be no air leak. All air must pass through the cleaner/filter;
  • check/clean tank, including fuel valve control and built-in fuel filter;
  • use PRIM instead of ON on the fuel valve control.
And the "carborator sleeves" will only slide up when there is sufficient vacuum (engine running) and the throttle is turned.

Good luck and Thank you for using FixYa. Happy Holidays.
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Looses power in third gear at 6000+ revs

Hi again,

Appreciate the postback.

A couple of ideas you may want to explore:
  • clean the fuel tank, built-in filter of the fuel valve, the fuel-valve itself;
  • check the fuel line, it may have fattened and restricts flow. Likewise check for kinks, sharp bends;
  • float settings of the carbs;
  • replace/remove external fuel filter if one is being used;
  • might as well check for vacuum leaks especially at the front of the rubber coupling and the clamps;
  • further check for air leaks at the base mount of the air filter/cleaner box and how they is mated to the carbs.
Cheers.
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