Question about 1990 Suzuki GSX-R 750 L

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Just stated to run bad smelt gas when it happened so i pulled the air cleaner orff and noticed in one of tthe carbs had more gas then usual !

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You should take off the carb and clean it with petrol and compressed air, after that try replacing the spark wich is @ the carb.

Posted on Mar 13, 2011

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Posted on Jan 02, 2017

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Motor quit put new gas, charged battery, checked oil still does not turn over- prior to this the engine would backfire prior to starting- I have checked connections-


Does not turn over or does not start? Does not turn over usually means a bad battery or starter. Or connections which you have already checked. There may be a fuse block or inline fuse as well. Does it have a manual pull start as well? Does this turn over the engine or is it siezed up, low/no oil.
Turns over but does not fire usually is spark or the fuel. Back firing would guess spark plug or carberator (air fuel mixture) If it turns over but does not fire, try putting in some Seafoam fuel system cleaner. This will get the varnish-gunking stuff out of the carb. Mix in your tank, turn over quite a bit to get it pulled into your carb bowl and into some of the carb port holes. Let it soak a while and then turn over again every so often to pull in new cleaner. If it starts at some point it will stink a little while burning the cleaner in the tank.

Make sure you have check the old fuel lines and and air vacuum lines for pin holes and cracks as well. Change the plugs. Make sure the air filter is clean. Change the fuel filter. Does it fire if you shoot starter fluid in the carb air intake, this would suggest a fuel issue, such as dirty carb, bad fuel line or fuel filter, or fuel pump.

Jan 09, 2016 | Ariens Lawn Tractor 42"" Riding Lawn Mower...

1 Answer

Sears eager 1 5 5 hp


If its been a while since you used it, most likely bad gas. Ethanol can pull water out of air, so there may be a little in the tank, also. Siphon it out & dispose of it properly. Get as much as you can out. There should be a little drain valve at the bottom of the carb. Drain it into a container. Put in fresh gas, make multiple attempts to start. This pulls fresh gas into carburetor. Also buy a new spark plug. Check for mouse nests around air intake (happened to me with a garden tractor). Check air filter, replace if it looks dirty. Buy a can of carburetor cleaner, follow directions. That covers all the possibilities, I think. BTW, to prevent future bad gas problems, don't just turn off the engine unless you plan to use the machine again soon. Turn off the fuel valve and let engine run out of gas. That keeps old gas from leaving gum in the carb over a long period. I do this with my snow blower every time I use it. Any snow can be the last snow of the season. This applies to every small engine, of course, not just chippers.

May 26, 2014 | Heavy Machinery

1 Answer

Durango starts sometimes. then acts like its getting no gas and dies. if i stomp on gas it will keep running till i let off. bad gas ? fuel filter ? fuel pump?


I would suggest starting with the less expensive solutions first. If you pull the air intake hose off the throttle body and open the throttle with the engine off look down inside if it is black try spraying it out with throttle body cleaner make sure to spray it out good. Afterwards start it you may have to keep your foot on the gas for a few minutes to make sure it doesn't stall then take your foot off the gas pedal and see if it stays running if it does your throttle body just needed cleaned. Note do not use carb cleaner use throttle body cleaner only, carb cleaner can damage the sensor in your throttle body.

Dec 12, 2010 | 1999 Dodge Durango

1 Answer

My 05 Yamaha Grizzly 660 will not start. In my limited troublshooting practice I looked at FUEL, FIRE and AIR. Here is the fault, the engine will not start. I checked wires/fuses, plugs, fuel lines and air...


Sounds like you have a stuck float needle in the carbs (2). Usually after a few days with gas in the carb they will free up, you could 'knock' on the carbs with the plastic end of a screwdriver to help free them up. If not, turn off fuel, drain the carbs and fill them with carb cleaner for 24 hours. Redrain, attach fuel lines and turn the gas back on. If still no start it's time for a rebuild...

Mar 05, 2017 | Yamaha 2005 Grizzly 660 Auto 4x4

1 Answer

Blower will run on choke but not in the run postion


If you haven't tampered with any adjustments (Set screw, Idle, Hi or Lo jets etc...) then most likely your carb is flooding. You either have something stuck in the needle valve passage keeping it open. (And it can be Tiny! and I mean a speck.) You can try shooting some good old "Gumout" or any other carb cleaner/ degreaser made for carbs. Try removing the gas line off the carb "Inlet" and with that hose off spray the carb cleaner into that hole liberally. Pull the throttle open and close fast as you do the "spray in".If you have compressed air? Send a little of that in there after the spray, then spray a bit more cleaner in. Let it then sit for 10 15 min loaded with cleaner. Then reconnect the gas hose, prime it up with the primer bulb, restart it, let it warm up a bit. see what happens. Oh FYI to much oil (or the wrong type)in the gas mix can sometimes cause something very similar to flooding. So make sure all is correct!

May 10, 2010 | Homelite Consumer Products MightyLite...

1 Answer

String trimmer only runs with choke on


If you have to run with the choke on, it's having problems pulling gas thru the carb.
Start making sure that you're using fresh gas/oil mix. Don't attempt to use last years leftover in the tank or a spare can. Bad news... won't fire well.
Second, pop the carb lines off the carb and flush with carb spray cleaner (use the nozzle tube that comes with the can).
Third, check for cracks, breaks, leaks in the supply and return hoses. Replace any damaged hoses.
Disconnect the carb from the engine and spray all jets, orifices with carb cleaner (I like the Berryman's B-12 spray) and reinstall.
Also, pull the filter out of the air filter and clean, reinstall.
While you're at it, pop the spark plug out and clean the tip with carb spray as well.
Finally pour in a fresh gas/oil mix...start as usual. should be alot better!

Jul 02, 2009 | Ryobi Garden

2 Answers

Willnot start


Check and,or; replace your fuel filter

May 20, 2009 | Homelite 'Yard Broom' Leaf Blower

3 Answers

750 89' Yamaha Virago gas & oil coming out of air cleaner


sounds like the floats are stuck. cleaning carbs should do the trick. its a good practice to start up motorcycles and let them warm up from time to time while being stored.

May 04, 2009 | 1989 Yamaha FZX 750

1 Answer

Karcher 2400R


You have a poor signal to the spark plug usually caused by a rusty fly wheel found underneath the pullcord casing. clean it with releasing ajent such as wd 40. common when not in use for a while.

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