Question about 2001 Suzuki DR-Z 250

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Bike has sat for years without being started. I just changed the plugs, gas and battery. The bike will start but once you let off throttle it immeadeately shuts off.

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  • csharter Sep 26, 2009

    bike shuts off even without letting off throttle....any other suggestions??

  • csharter Sep 27, 2009

    cant seem to find the air mixture screw

  • csharter Sep 27, 2009

    cleaned out carb float bowl as well

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  • Master
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Yes buddy the idle screw is too low on carb is a screw idle screw turn this in 1/4 of a turn at a time till it idles at 1000rpm or it dles ok bike has sat for years without being started. I - b60519a.jpg

Posted on Sep 26, 2009

  • ollie reece-jones
    ollie reece-jones Sep 26, 2009

    have you tried the mixture screw on the pic above turn it in and unscrew 2 turns

  • ollie reece-jones
    ollie reece-jones Sep 27, 2009

    the air mixture screw may be underneith the carb get back to me

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Bike running rough at lower revs


If the bike sat without being used over the winter It could be bad gas. if gas sits without being used for an extended period of time it destabilizes and gums up carborators and fuel injectors, you need to add a fuel stabilizer to gas when storing for winter. To fix the problem the gas has to be drained from tank, then refil with fresh gas and appropriate amount of carborator/fuel injector cleaner/treatment. Then start the bike and let it run it should clean itself out and start running smooth. If bike did not sit unused for winter its possible they installed the wrong plugs sometimes they talk you into spending more money on platinum or split fire/gimmick plugs (always use the exact same plug that came in the bike when it was new!!!!!)

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Having trouble kick starting 1999 Suzuki 650S - flooding could it be bad gas, new battery in it .new bike for me.


it could be bad gas but depending how long it has gone without the carbs being cleaned out it could be a big part of it to...here is what i would do to keep cost down but get good results...change the gas (only run premiem gas) pull the spark plugs out give them a quick spray with starting fluid then put them back in then i would use a product called seafoam once i get it started...you can get seafoam at an auto parts store follow the instructions and the bike should run like a dream...good luck i hope this helps

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My bike has sat for one year. I bought a new battery one year ago and drove it from my old apartment to my current one. The bike has not been started for one year. I got a used gas tank on ebay and...


Ok mate few things to consider here, if the bike has been non started and stationary for a year there is a very good chance that one of the following or all of the following has occurred.
Your battery is dead (they don't like just sitting - doesn't matter new or old, if left for extensive time they will die) Your gear / motor oil would be useless - oil can not just sit in bottom of bike for a year it would be glue
Your carbi would be blocked or partially blocked from fuel gum or varnish in jets
If you like this bike I highly recommend oil and filter change, New spark plug (put about 10 drops of oil down the spark plug hole before you put new spark plug back in to lube the piston) clean air filter (or fit new one) Remove carbi and compressed air clean all jets especially the pilot jet and circuit and stick in a new battery
Once all done for the fist start I would find a nice safe hill and push start it. in my experience under this circumstances if you rely on the electric starter you may find you burn it out trying to start so give at least few minutes running motor to flush everything through before trying to electric start would be your best bet
When you get it going I would dump the oil and oil filter again after 2 hours ride time to confirm all the old expired oil is flushed out - just to be safe
good luck regards Jamie

May 28, 2011 | Suzuki Boulevard C50T Motorcycles

1 Answer

JUST BOUGHT A '73 XLCH THAT SAT FOR 2 YEARS BECAUSE THE OLD MAN THAT OWNED IT COULDN'T KICK START IT ANYMORE. IT STARTS RIGHT UP BY PUSH STARTING IT, BUT KICKING IT IS ANOTHER STORY. IT'S GETTING FIRE...


You probably need to adjust your valves. Ironhead Sportsters are equipped with solid lifters and must be adjusted with zero backlash. If one of the pushrods is adjusted just a bit tight and holds a valve open even slightly, the bike is almost impossible to start with the kickstarter.

To adjust the valves, the bike must be stone cold. Take the spark plugs out, raise the rear wheel of the ground, and put the transmission in fourth gear. Turn the engine over by bumping the rear wheel in the normal direction of rotation. Bring the piston of one of the cylinders up to top dead center on the Compression stroke. Pop the pushrod tube covers and check the pushrods. You should be able to spin both pushrods with your fingers. If not, adjust the pushrod so taht it's tight. Then back it off to where you can just spin it with your fingers. Keep in mind that on a Sportster, it's better to have the pushrods slightly loose than tight. Once you get that cylinder's pushrods adjusted, do the same thing with the other cylinder.

Now, once you get this done, starting your bike is simply a matter of figuring what works with it. I've always said that kickstarting a Harley, especially a Sportster, is a ritual. Some bikes like for you to milk the throttle twice, kick the engine through twice with the choke on and ignition off, then turn on the ignition and kick it. Other bikes seem to want only one milk of the throttle, one kick with the ignition off, and then kick it. Each bike seems to have it's own particular ritual that you must figure out to get reliable starting. I'd try milk the throttle once, put the choke on, kick it through with the ignition off once, then turn the ignition on and kick. If the bike spits back through the carb, you need to start all over again. If you get the engine flooded, hold the throttle wide open and kick until it fires.

One other thing about a Sportster. Did the old man you bought it from have a limp in his right leg? A Sportster is notorious for "slipping through" when you try to start it. The result is that all your weight comes down on your knee without any resistance. The result is your knee tries to bend backwards, the way it wasn't designed to do. This can tear ligaments and cartilage in the knee and it even has it's own name, "Sportster Knee". Be careful.

Ride Safe
Steve

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1 Answer

My 1982 Honda v45 will not run without the choke on. It sat in the garage for years with old fuel in the tank. We drained the fuel, changed all the oils, etc and completely REBUILT all 4 carburetors. I...


The slow jets and adjoining passageways are still dirty. As painful as it may be , take the carbs off and clean the slow circuit again or it will never idle. Double check the fuel pump is working properly and the fuel filter is not plugged. One time it took me four cleanings to get all four carbs working on a Suzuki that sat for five years. Also make sure none of the carburetor boots have developed rips from age.

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1 Answer

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i have the same bike and had a simalar problem i think by spraying gas in the throttle body somehow soaked the spark plugs i changed them and the bike started right up

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Okay, let's have a look at it. Say Ahaaa.
The probable cause of the problem is not the spark. Get a fresh set of Stock NGK spark plugs, ground the plus to the engine, and check each cylinder for spark as the starter button is pressed for 3 seconds or so. I will wager that the spark is present.

The likely problem is the fresh gas was put into a very rusty gas tank. Bits of rust now inhabit your carb and are having fun plugging up the carb. Look at the gas valve. With a little luck there is a small bowl behind the valve. Remove it and tell me what you see in the bowl.

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