Question about 1994 Suzuki GSX-R 750 WR

1 Answer

Suzuki gsxr 750 1994 garaged all winter, wouldnt start. sparking. lifted tank no fuel delivery. after disturbing tank. bike started. ran about 1 to 2 miles stopped again. AA called. lifted tank. blew down fuel lines. bike ran again. rode it home. theres 3 pipes to the tap; 1 large diameter and 2 smaller diameter with what looks like inline filters fitted. dont know what pipe does what. tank nearly full. do i drain tank. clean tap and renew filters. fuel pipes seem in ok condition?

Posted by on

  • pajeropaul Mar 23, 2011


    Thanking you, i will purchase a new Petcock valve. Again. Thanking you.


  • pajeropaul Mar 23, 2011

    Very helpful. thanking you.



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.


    An expert that got 20 achievements.


    An expert that got 10 achievements.

  • Suzuki Master
  • 79,865 Answers

Having owned this (mine was a 91) model and knowing allot of Suzuki owners over the years the problem here is the fuel valve (called a Petcock valve) is defective, they sick, the reason is that the valve is operated by engine vacuum, so it only delivers fuel when the engine is cranking over or running, the only exception to this is the so called Prime position marked with a "P" on the valve. The hose consist two small vacuum lines from the engine that operate the valve in the run and reserve position and the large line is the fuel delivery hose to the engine. My advice is to mark the lines with tape, remove the fuel tank and replace the fuel petcock valve with a new one, this will also eleminate the other nasty problem this valve has, the rubber O ring fails and it leaks fuel all over the engine fairings and runs the paint, this happened to my bike.

Posted on Mar 23, 2011

  • yadayada
    yadayada Mar 23, 2011

    Here is a picture of the fuel valve petcock on the fuel tank, it is held into the tank by two machine screws, drain the 1st by placing the selector in the "P" prime position, do not get gas on the paint or worse the decals.

  • yadayada
    yadayada Mar 23, 2011


    If my solution was what you needed could you please reward my efforts by rating this solution for Fixya as a "HELPFUL" That is how I'm compensated for my efforts. Thanks again



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

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

2002 Suzuki GSXR 750 is hard starting

Hi, Damian and the usual suspects are:
1. Spark plugs in bad condition or have an improper gap or are partially fouled.
2. Spark plug cables in bad condition.
3. Battery damaged or nearly discharged, should have 12.5 volts.
4. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
5. Throttle controls not adjusted correctly.
6. Water or dirt in the fuel system.
7. Water or dirt in the carburetor.
8. Intake air leak.
9. Fuel tank vent hose and vapor valve plugged, or fuel line closed off, restricting fuel flow.
10. Enricher valve inoperative.
11. Engine lubricant to heavy (winter operation).
12. Ignition is not functioning properly (possible sensor failure).
13. Faulty ignition coil.
14. Valves sticking.
For more information about your issue and valuable "FREE" downloads that you will need please visit the websites below. Good luck and have a nice day.
Cold Start up Problems
Bike turns over but won stay running
Suzuki GSX R750 Service Manual
OEM parts for Suzuki

Nov 05, 2016 | Suzuki Motorcycles

1 Answer

I have a 2004 gsxr1000 that will not start. I stored it through the winter.It started and ran good but had loss of power over 8000rpms but otherwise started and ran. I sat it for 2 days and now it wont...

The problem is that over the winter water tends to condense inside the fuel tank. If you did not replace all of the remaining fuel from the tank it might be contaminated with water.
Try to leave your bike with a full tank next time you live it unused for a long time.

Jun 29, 2011 | 2008 Suzuki GSXR1000

1 Answer

My 2003 suzuki gsxr won't star has been sitting in the garage for three months without starting it cranks over pretty good, did I choke the engine with too much gas trying to start it?

Hi from Spain,

no way to choke this fuel injected bike in theory....but by my experience try to start the bike with fully open throttle several times, take care do not flat the battery, if the bike has not much fuel do not try with the bike on the side stand so the fuel cannot reach the fuel pump inlet.



Nov 29, 2010 | 2007 Suzuki GSX-R 750

2 Answers

F1 light comes on bike cuts off of my 2008 gsx . i change oil -gas- and bought it to the shop and the same problem. when i turn the bike on i runs for a little while then turns off

F-I is fuel injection system telling you to clean air-filter,fuel-filter and clean the fuel injector system. This is a good start.

Apr 11, 2010 | 2007 Suzuki GSX-R 750

1 Answer

Not running correctly

not 100% sure if this is a fuel injected bike...if it is...maybe the fuel fillter needs changeing...if its a crab engine....try cleaning the carbs out!!

Mar 31, 2010 | 1997 Suzuki GSX-R 750 V

1 Answer

My suzuki gsxr 750 sat all winter and i didnt winterize it at all. the battery died... i charged it and my bike just wont start. It cranks over just won.t start. What should i do?

check spark plugs,check for spark. check fuel is good. possible needle and seat gummed up in carb float bowl. disasemble and clean with brake or carb not change float level. re assemble ,you can use the cleaner to help to fire the motor with a shot through the carb. make sure you cleaner says flammable. good luck.

Mar 22, 2010 | 2007 Suzuki GSX-R 750

1 Answer

How do you drain the gas tank on a Suzuki GSXR 600? Also, my bike has been sitting for a while, what do I need to change or look at before I start it up? Do I need to take it to a certified mechanic? If...

Clip off the seat. you can now access two bolts for the tank. remove those and lift up the tank to see where the hose is connected to underneath. There is a gasket around the end of the hose where you pinch to make loose and pinch that to move it up off the connection. Now pull off the hose and gas will drain out, put the old gas in a can and dispose economically proper (auto parts store or burn it in a fire) change the oil, and transmission fluid. When winter rolls around you are supposed to winterize the bike so your gas doesn't rust the inside of the tank. Change the fluids every spring before starting it up you should be good to ride. don't forget to check air pressure in tires, and brake fluid every 20k miles.

Oct 20, 2009 | 2003 Suzuki GSX-R 600

1 Answer

96 gsxr 750 gas in crankcase.

You have a float sticking and your fuel pump is runing when it need not, . You have a bad carb float

Jul 19, 2009 | 1994 Suzuki GSX-R 750 WR

1 Answer

I winterized my bike last winter. I drained the fuel tank on my zx 750h. ran the motor to empty lines and now i refilled the tank but it wont start. what am i missing. It fired and ran for abou 10 seconds....

try new spark plugs. and for next winter you're better off not draining everything. best thing is add some fuel stabilizer and run it a few minutes once in a while. empty lines tanks and carbs attract moisture.

Jun 11, 2009 | 1990 kawasaki ZXR 750

1 Answer

Engine skips, won't go over 55 mph. Works fine below that.

Hi ..... Go through the above list, pay particular attention to fuel delivery ie blocked breather in tank, any filter fitted to tap or change in line filter if fitted. Easy to check, take off fuel delivery to carb (place container to catch fuel), start bike and fuel should come out a strong contant flow.
Let us know how you get on.

Jan 20, 2009 | 2004 Suzuki VL 800 Volusia

Not finding what you are looking for?
1994 Suzuki GSX-R 750 WR Logo

Related Topics:

338 people viewed this question

Ask a Question

Usually answered in minutes!

Top Suzuki Experts


Level 3 Expert

79865 Answers

Arnie Burke
Arnie Burke

Level 3 Expert

4899 Answers


Level 2 Expert

83 Answers

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

Answer questions

Manuals & User Guides