Question about 1990 Suzuki GSX-R 750 L

5 Answers

1998 gsxr too much fuel

I have a 98 gsxr 750. I bought this used and they couldnt get it to start. I ajusted throttle bodies, tps,and installed new fuel lies and fuel pump. It starts right up now. It has so much fuel its spitting it out of the pipes and runs like ****. There is also no codes in computer. This is driving me nuts i have hours and hours trying to figure this out. Can anyone please help.

Posted by on

5 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 2,035 Answers

Get the carb checked :
There are 4 basics changes:
1) Main jet
2) Needle
3) Pilot jet
4) Pilot screw
Check these components on the cab if the vehicle was left with gas for long time then thin film may build in carb use a carb cleaner spray to carb and then try to start ...

Good luck...



Posted on Feb 21, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 8,619 Answers

Hi
Check the die vacuum pipe on the carbs. It might be connected to the overflow on the tank and not the tap resulting in the fuel to flow out .

Please revert for further clarifications.
Thanks Rylee

Posted on Feb 21, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 5,158 Answers

Sounds like the fuel pressure is set to high .. you need to test that

Posted on Feb 21, 2009

  • Roberta Smith
    Roberta Smith Feb 21, 2009

    two places you are likely having the problem are float needle or vacuum diaphram

  • Roberta Smith
    Roberta Smith Feb 21, 2009

    i have the link for the service manual as well

×

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 150 Answers

You may need to rebuild your throttle body or carb.

Posted on Feb 21, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 547 Answers

Is there a ajust screw on pump or carb? if so ajust it?

Posted on Feb 21, 2009

  • albert getty
    albert getty Feb 21, 2009

    So which is it? Carb or Throttle Body?
    Throttle body is a single (sometimes 2) electronic fuel injectors mounted in a carburetor LOOKING device that sits on the intake manifold. A flooding throttle body injector system is caused by faulty electrical to the injector or more likely a sticking injector. If the problem isn't too severe yet, use some injector cleaner before you spend a lot of money.
    If it's a CARBURETOR, you have a sticking needle & seat or a damaged float inside the float bowl. It's a relatively simple job to rebuild the carburetor but if you have never done it before, you might want to just replace your carb with a rebuilt one.

  • albert getty
    albert getty Feb 21, 2009

    this should help you out thank you for useing fixya

×

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
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.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

06 gsxr 1000 backfires


Back firing is normally due to two things,

Ignition timing happening at the wrong time. This can be over advanced where it back fires through the carbs, and retarded when it fires through the exhaust.

Unburnt fuel in the exhaust can cause detonation by hot gases or carbon..

Yours is strange that it is happening in both places! That can be caused by badly sealing valves, but you have the compression?

Have you checked ignition timing?

Jun 19, 2016 | 2008 Suzuki GSXR1000

1 Answer

Why won't my 2005 CBR 600 RR rev past 3500 rpm?


I have a few questions for you. 1. Have you owned the bike since it was new? 2. Have you been able to rev beyond 3500 rpm prior?

Apr 24, 2015 | 2005 Honda CBR 600 RR

1 Answer

Gsxr cuts out


replace the fuel pump or adjust the TPS. It doesnt do it in nuetral its because it is not under a load. Put in dealer mode to check the TPS. It should read -COO... If the - is not in the middle (if its up top or on bottom) it needs to be adjusted.

Mar 30, 2014 | 1998 Suzuki GSX-R 600

2 Answers

Gsxr 750 shoots flames


If the bike was running correctly when it was put in storage two years ago, I would start with the easy things first: As the previous poster suggested, install new, correctly gapped plugs, along with a new battery. Your bike uses an electronic ignition system, and it will not opporate correctly if you have a bad battery. The bike will miss, pop, and backfire, because there is not enough electrical power in storage (battery) to properly run the ignition system.

If these two things do not get the bike running correctly you will need to look at the carbs. Was the bike stored with fuel in the tank and carbs? If so, this is the most likely reason for the bike not wanting to run correctly. Flames from the exhaust are an indication of a very rich fuel/air mixture (a float could be stuck open (it can also be caused by the ignition not working properly and allowing unburnt fuel into the exhaust system)). Cleaning and reassembling mulitple carborators is not that difficult if you are careful and reasonably handy, but tuning them properly can be very difficult. You can save a lot of money if you rebuild them yourself, then take the bike to the shop to be tuned (The standard service rate these days is around $75 an hour)

Mar 23, 2014 | 2000 Suzuki GSX-R 750

1 Answer

Throttle body make a sound like a buzzing


TPS needs to be calibrated correctly for the throttle to work.

Mar 05, 2014 | Yamaha YZF-R1 Motorcycles

2 Answers

I have a 1998 suzuki GSXR that has been sitting 4 6 years with gas in it that are the things i should do to get it road worthy


I hope it was sitting inside and not outside. Bear in mind this bike may get costly. The following are general thoughts
  • Remove the bike battery and run jumper cables to the battery leads. Will the bike turn over using a car's battery?
  • Do the clutch and throttle cables work okay?
  • With car battery hooked up, does it have spark?
  • Shoot WD40 into each cylinder to lube the rings
  • Change gearbox oil. Lube the chain. Be sure the brakes are functioning properly.
  • Chances are the carbs are gummed up and will need some serious cleaning. Add an in-line fuel filter.
How bad is the rust inside the gas tank? You may need to seal the tank with KREEM to kill the rust problem.
www.http://www.4secondsflat.com/Fuel_Tank_Sealer.html
  • New chain. New front and rear sprockets (if needed)
  • Battery
  • Carb rebuild kits (if needed)
  • Upholstery
  • Tires
  • Throttle, clutch and front brake cables
  • Speedometer cable
  • Electric starter (if needed)
Please rate my answer. Thanks.

Aug 31, 2010 | 1998 Suzuki GSX-R 600

1 Answer

Surging


Could be throttle bodys need synching,first adjust your TPS
(throttle position sensor)as per factory instructions.It will show you how to in a haynes manual.If the problem still persists,it will need throttle bodys synching.Its just like carb balancing on older bikes.they do run out as milage increases,its no major problem.

Mar 05, 2009 | 2001 Triumph 955i Speed triple

2 Answers

After a while of riding bike doest go over 5500rpm


NORMALLY HIGH REVING ITS BAD SPARK PLUG CHECK THE TUNE UP PIERRE

Jan 10, 2009 | 1998 Suzuki GSX-R 750 W

Not finding what you are looking for?
1990 Suzuki GSX-R 750 L Logo

Related Topics:

92 people viewed this question

Ask a Question

Usually answered in minutes!

Top Suzuki Experts

yadayada
yadayada

Level 3 Expert

63801 Answers

Arnie Burke
Arnie Burke

Level 3 Expert

4497 Answers

Ed Nelson
Ed Nelson

Level 2 Expert

149 Answers

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

Answer questions

Manuals & User Guides

Loading...