Question about 1989 Suzuki GSX 750 F (Katana)

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Bike wont start when I spray with ether it will run but at high speed wide open like their no throttle

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  • Suzuki Master
  • 1,554 Answers

When spraying with ether, if it runs for about 10-20 seconds and dies, the carb idle circuits are plugged up.

Posted on Oct 16, 2013

4 Suggested Answers

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  • 2 Answers

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Posted on Jan 02, 2017

slave2aslave
  • 302 Answers

SOURCE: I have a 1991 RM250 and when i try to kick start

Try this:
Clean and gap the spark plugs. Clean the air filter,and then run some carb cleaner through the carb.
Hope this helps.

Posted on Oct 06, 2009

  • 1 Answer

SOURCE: Bike will start , but

Engine might be flooded. Have ur carbs looked at by a professional if you don't want to yourself.

Posted on Jan 30, 2011

  • 1702 Answers

SOURCE: My 96 750 katana just

Hi, Check coil or ignition module. replace it. Good luck.

Posted on Sep 15, 2011

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Wide open as in wide open throttle?? You mean the engine is racing? Something is wrong with the throttle controls, or the throttle valve in the carburetor may be sticking open. Look down the carb throat. At its base will be the throttle valves-"butterfly" valves just like the choke valve on top of carb. The throttle valve should be closed at rest, or at idle, or when gas pedal is not moved. Rotate the throttle lever on the carburetor by hand (when gas pedal is pressed down, the throttle is rotated). The throttle valve at the bottom of the carb should open and close with the throttle lever.
If the valve is sticking, spray some carburetor cleaner down it, and spray the outside clean, too. Work the throttle back and forth to make sure it is free to move.
For a high idle, have the carburetor adjusted. Timing should be checked, too-that can cause a high idle, but wouldn't cause it to go wide open.
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How do I adjust the carburator?


There are two needle screws that can be adjusted to make the engine run properly. Be certain that the carburetor is clean and the diaphragm is in good condition, and the fuel is new. The two needle screws mentioned above should initially be adjusted at one turn open from turned in all the way (lightly seated). Each of these needle screws performs different functions. One is for idle and throttle response (this screw is marked "L" and the other screw is marked "H". L and H are marked on the carburetor body and also on the plastic "shroud" near the adjustment screws. These screws are not interchangeable, being foolproof since the thread sizes are not the same. When properly adjusted the low speed screw (L) allows the engine to idle properly and throttle response will work properly. When the high speed screw is adjusted properly the engine will have correct power at full speed. Adjust the low speed screw so that the engine idles and when you squeeze throttle all the way to wide open the engine should not hesitate and should come up to full speed and when you drop the throttle it should idle nicely without stalling. Now adjust the high speed screw. Hold throttle wide open, holding it there while you adjust the high speed screw. If this scares you (be carefully so that the spinning chain does not cut you!) you may adjust the high speed screw at idle, turning it just slightly in or out. The high speed screw should be adjusted so that the engine does not run clean at wide open throttle but sputters slightly, slightly adjusted open from running clean to slightly sputtering. When under load (cutting a log) the engine should run clean. Good luck!

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I HAVE A 2006 HARLEY WIDE GLIDE, I FIRST START THE BIKE COLD AND LET IT IDLE FOR ABOUT 5 MINUTES OR UNTIL THE FINS ARE WARM, THEN I TAKE OFF MEDIUM SPEED AND IT FLUTTERS AND PUFFS, BUT AFTER IT'S WARM...


You're running the bike too long with the "choke" or enricher on. Five minutes is way too long. The enricher circuit is very rich and it will foul your plugs if you allow it to run too long. Use the enricher to start the engine and keep it running just until you can keep the engine running with the throttle grip. Then, use the throttle tension knob beneath the throttle grip to lock the throttle to a high idle until the engine warms up.

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Need intructions on carberator adjustments for mac-3514 35cc/cm3 runs but hard to start after using it for few minutes.


There is a low speed jet and high speed. Low speed sets the idle or stays running without feathering the throttle./// When setting high speed, hold the throttle wide open until engine revs high, then turn back in(at least ¼ turn) to slow the engine which in turn gives the engine more gas and runs cooler. If you have it too lean on the high speed, it will be hot and hard to start. Sometimes using 40 to 1 mix helps with starting, especially on older chainsaw. good luck

Sep 22, 2010 | McCulloch Garden

1 Answer

Whilst riding at long periods at high speed my bike just shut down and didnt seem to have compression once i went to kick start it again.yz 125


It sounds like you cooked her. If you are jetted lean, and run it wide open for a long period of time, it melts the ring to the piston.
Do a compression test, remove spark plug, thread in gauge, and hold throttle wide open and kick untill the guage stops climbing (Around ten or so) Less than 100 psi is bad.

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I get it started it runs as long as you have it wide open but you let of the gas it dies


This might require adjustment of the hi speed carb screw, the lo speed, and the idling screw as well.
The engine needs to be good and warm, you need to be certain you have a fresh fuel mixture in the tank, and you should check the air filter because it too affects the way the saw will run at low speed and idle.

I would start with the hi speed adjustment screw since wi does start. Fire it up and run it a bit to make sure you have it warmed up.

You may need someone else to help you hold the saw while you make these adjustments. With the throttle wide open, turn the hi speed screw slowly, in increments of 1/4 turn, to the left. It may be just a bit off. The objective here is to turn one way until it sputters or runs a little rough. Then turn it the other way until the engine smooths out. Continue to turn in the same direction until it again runs rough. Then turn back about halfway between those two points.

It should run well at wide open throttle. Place your screwdriver in the low speed adjustment screw and turn to the left, in small 1/4 increments like you did before. The objective here is to adjust to the point where the saw will throttle up quickly and smoothly, and more and more from an idling position, or as close as you can get.

If you find you don't get that, and the ramp up is choppy and unsmooth, adjust in the other direction. Eventually you should get to a point where you have quick response to your throttle. You should get to a point where it runs without being wide open.

If it fires up easily and throttles up smoothly but won't idle, the you need to adjust the idling screw. Adjust it until the chain begins to move on the bar when you let the throttle go. Once you get to the point where it idles with the chain moving, back off the adjustment until the chain just stops moving.

Make sure the air cleaner is clean. You may have to clean the carb with spray carb cleaner while it is running at full throttle. If you do, spray a tiny bit at a time, as it will almost kill the engine.

Finally, after all this work, invest in a new spark plug, even if the one in it isn't that old.

Sirwriter

Jun 15, 2009 | Garden

1 Answer

Engine will not run wide open


you need to make sure there is not a fuel restriction first check the fuel filter, then the lines. If these seem ok then adjust the High speed rpm, there should be two adjusters one for High speed one for low speed(when the throttle is fully engaged.Do small adjustments at a time.

Jun 14, 2009 | Garden

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