Question about 2008 Suzuki GSX 1400

2 Answers

Apparent misfire on sudden acceleration

Bike was running great at end of "summer".she`s spent a lot of time since then in the garage. took her out for a run a couple of weeks ago and noticed this problem. when you give it a sudden hard acceleration in any gear there is a momentary misfire , only for a split second but the bike lurches forward immediately after and runs great until you give it another fistfull. a friends 14 also has the same problem but his has been doing it for some time and we have not been able to find the cause. the ecu`s have been swopped with good bikes change the alarm / remote start / immobiliser has been change new fuel and  injector supply rail and injectors cleaned change any ideas are welcome thanks

Posted by on

  • 3 more comments 
  • paulk_metcal Jan 03, 2009

    not concidered that as they were changed 2000miles ago.but its worth a try as nothing else has changed.

  • paulk_metcal Jan 24, 2009

    plugs changed improvement.
    Took her to garage .they have had her for over a week now ,been on Dyno and diagnostics.
    Both Primary and Secondary throttle position sensors are faulty. neither will adjust into the necessary resistance values.
    Waiting for replacements to be fitted next week.
    Will let you know the results when i get her back.
    Cost so far ......300 quid

  • Anonymous Jan 30, 2009

    Occasionally backfires occur on change-downs (throttle blip) through intake manifolds in the lower gears .Seems worse when day temperature is hotter.Advice is welcome

  • Anonymous Apr 27, 2009


    I have exactly the same problem with my 2001 gsx1400.

    New mapping, new plugs, new primair throttle position sensor nothing seems to work.

    If I accelerate gradually, it runs fine. If I give full throttle suddenly, it will shiver for a split second and then take off.

    Who can advise?


    Hans Eisink

  • eisink Apr 27, 2009

    I have exactly the same problem with my 2001 gsx1400.

    Changed plugs, primary TP sensor, mapping, used injection cleaner fluid.

    No result. Dutch Suzuki tuning specialist found out that the TP sensor was faulty, but never saw this error before.

    I hope somebody can advise.



2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Check the tank from inside- if it was not fully loaded with gas it tends to corrode during winter . Corrosion forms send like debris which creates problems for injectors.

Posted on Jan 20, 2009

  • Level 1:

    An expert who has achieved level 1.


    An expert that has over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 9 Answers

Have you changed the plug ?

Posted on Jan 03, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Jumping and banging noise

probly a hidden vacuum leak like an egr valve--throttle body may need cleanin along with the idle air and motor area----get car on a diagnostic machine also to help pinpoint

Aug 06, 2013 | 2005 SsangYong Rexton

1 Answer

Surging douring slow acceleration

stand the air intake on summer can find this on your ,
airfilter is a valve,its possible it stand in the wrong possition,winter or summer

Apr 09, 2013 | Cars & Trucks

1 Answer

Gsf1200k6 bike stored for 3 months now has a misfire also making strange clunk noise every now and then at idle bike has traveled 30,000km

I have just rebuilt the carbs on my buddy's Bandit 1200 that had a similar problem. After doing the initial checks to confirm it was not plugs, wires or coils and doing a compression test it came down to the carbs. After removing them and taking the float bowls off I found lots of small rubber pieces in the bowls. This could only have come from the rubber fuel hose, from tank to carbs, as there is a filter in the fuel valve in the tank and that was clear. The small rubber pieces had blocked off some of the jets. Apparently Suzuki recommends replacing that hose every two years. I suspect alcohol in the fuel was eating the inside of the hose.
i am not saying that is the same problem you have but something to keep in mind. If it had not been stored with fuel stabilizer in the tank I would drain the fuel and add fresh gas and then if the problem persists do the basic tests first before going further.

Jan 10, 2018 | 2005 Suzuki GSF 1200 Bandit S

3 Answers

I have yellow check engine light on in my 2008 kia rio and just took it to autozone and they ran a scan on it said misfire cylinder 1whats that mean and how can i fix it ?

I had the same problem with the engine misfire on my 2006 Kia Rio, I took it to 5 garages, I took it to Kia, they were all ****, and had no answer to the misfiring of my engine, yes the "engine light" came on all the time, and sometimes the engine light stayed on.

They all tried flushing the fuel injectors, well that didn't work, and they were confused why it didn't work and said that they couldn't fix it, some said it was a piston, and you might have to overhaul the engine, after that and lots of money spent I had the same problem and thought to myself,well that was one ******** theory, they were so bemused by the whole misfiring of this engine and said they couldn't fix it.

They ran lots of computer tests on my car with a misfiring code that showed up, but a code is just a code with no step by step instructions to fix the problem, no one couldn't fix the misfiring problem.

$1500 later I was about to give up until my sister said that she had found a descent mechanic, told him about my problem and told me to bring my car in.

Well to my amazement, he found the problem, the misfire was caused by the coil that had been shortening (an electrical shortening), and there was evidence of a burn mark on the coil, well he changed the whole coil and changed the spark plug leads and now the car doesn't misfire and works great - I hope this is a solution to your misfiring problem, I thought I would share my story about my Kia Rio misfiring problem - Have a great day everyone.

Jan 28, 2011 | 2008 Kia Rio

2 Answers

Misfiring 2007 Honda VFR 800

I would say that your bike may be running a little lean. I usually replace the jets on all my bikes as soon as I get them as the emissions requirements mandate that the manufacturers pass stringent emissions tests prior to the dealer selling them. Some bikes wont even idle or run, especially off road bikes from places like California. and in these cases you must re jet it is a must! I even throw away or drill larger holes into my air cleaner cover.

Good Luck!

Sep 22, 2009 | Honda VFR 800 Motorcycles

1 Answer

Misfiring 2007 Honda VFR 800

try new plugs also maybe a different plug also check air filter is clean

Sep 22, 2009 | 2005 Honda VFR 800

Not finding what you are looking for?
2008 Suzuki GSX 1400 Logo

1,148 people viewed this question

Ask a Question

Usually answered in minutes!

Top Suzuki Experts


Level 3 Expert

78257 Answers

Arnie Burke
Arnie Burke

Level 3 Expert

4727 Answers


Level 2 Expert

83 Answers

Are you a Suzuki Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides