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The bike turns over, but doesn't start. New fuel in it, there is spark, choke seems to work, fuel filter blown out. Only thing it does is turn over.

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  • Motorcycles Master
  • 41,491 Answers

Check the kill switch

Posted on Apr 16, 2015

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  • Master
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To run it needs, fuel/air/spark. hard to block all air, it has spark, so i would guess you have a fuel issue blockage. i assume the petcock is in run/on?

Posted on Apr 14, 2015

  • adam bikedoc Apr 16, 2015

    it needs compression too !

  • rdjagger Apr 16, 2015

    And timing and..........

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  • Motorcycles Master
  • 657 Answers

What make and model of bike are we talking about here ?

Posted on Apr 14, 2015

Testimonial: "1986 Yamaha Maxim XJ750Jcc"

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Posted on Jan 02, 2017

  • 3567 Answers

SOURCE: I have a 1995 vx535 it starts with the choke on.

  • Lets do the basics first. Shut off the gas then remove the water trap from the petcock ( gas valve ). Clean the trap then drain the carbs. This will eliminate any water in the fuel system.
  • Now it gets a bit tougher. If the fuel system is not the problem then it sounds like time to remove and clean the carbs. The carbs could have varnished up over the winter. Since you have the carbs off, Consider a carb kit. After all, the bike is 14 years old. Main jet seals could be the problem as opposed to varnish. Be sure to balance and sync the carbs after installation.
This should solve the problem. Please rate this solution after all is done. Thanks.

Posted on Mar 17, 2009

  • 91 Answers

SOURCE: wont accelarate

you didnt say if the bike sat up for a while, if it has you have stopped up carbs the bike will run with the choke on but shut off when the choke is off says no fuel going thru the low speed jets clean them by taking the float bowls off and blowing them out with high pressure air

Posted on Jan 04, 2009

  • 2336 Answers

SOURCE: bike backfire

Yes, it could (and probably is) be an air leak. Check to be sure the carb is tight in the intake manifold, and make sure the hot-start isn't loose and is sealing properly. Also make sure all of the exhaust system joints are tight, an air leak in the exhaust will make a four-stroke pop and backfire like an old work truck with no muffler...

Posted on Nov 10, 2008

  • 109 Answers

SOURCE: bike wont start. got spark, fuel pump turning on,

Sounds like clogged injector units.

Posted on Mar 28, 2010

  • 921 Answers

SOURCE: My 06 gsxr 750 will not start. New battery,

if the bike will not turn over you mean it doesnt crank? because if it doesnt crank over then its a starter issue and could be a simple as a blow fuse, but then why did the fuse blow? ( starter going bad)..... or it could be the starter solenoid itself, and this is where i believe you might find the fuse. response feedback appreciated.

Posted on Apr 06, 2010

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1 Answer

No compression all 4 cyclinders cbr250rr


I am no expert by any means but I had a similar problem. turns out the governor was turned down too low. Everything starts up but dies. Another thing it might be would be the choke. I have this bike and some times the choke gets stuck open and floods the engine.

Jun 22, 2012 | 1991 Honda CBR 250 RR

1 Answer

My harley wont turn over


Instructions
    • 1

      Make sure the key and kill switch are both in the "on" position. Ensure that the proper starting procedures for your bike are followed. Is it in neutral? Clutch pulled in? Gas in the tank? Then try to start your bike. Does it turn over? If not, check to see that the battery is properly connected and the terminals are not corroded. If they're loose or dirty, clean and tighten them. Then, using a voltmeter that measures ac/dc and ohms, check to see that your battery has enough charge to crank the engine. If not, replace or charge your battery and try again. If it still doesn't turn over, there may be a loose connection between your battery and starter; a bad ignition or starter switchl or a bad safety relay. Check a repair manual for proper testing procedures for your bike, as each motorcycle differs.

    • 2

      If your bike turns over but doesn't catch, check to see that it's getting fuel. If the bike has a fuel petcock, make sure it is in the "on" (or, on certain bikes, "prime") position. Then remove the main fuel hose and check to see that fuel is flowing freely. If fuel isn't getting to the carburetor or injection system, your bike won't run. If that's the case, your problem is likely something in the fuel system. If fuel is flowing freely, reattach the lines. If it's not, check to see if the fuel filter is clogged, if a line is pinched or if the petcock is working properly. One way to determine if the problem is in your fuel system is to put a few drops of fresh gas into each spark-plug hole, replace the plugs and turn the bike over. If it starts and then quits, the problem is likely in the fuel system.

3
  • If you're getting fuel and the bike turns over but still doesn't catch or start, check the spark plug or plugs. Start by pulling off a spark plug wire, then removing a plug using the spark plug socket supplied in your bike's toolkit. Now inspect the plug. It should not be wet (usually caused by fuel, when the plug is not firing) or coated in carbon/burned oil deposits. Now check to see if the bike is getting spark. Although you can get a special, insulated set of pliers to hold the plug, there's a "quick and dirty" method for this: After reattaching the plug wire, lay the threaded part of the plug against the engine (not over the plug hole, as the spark could ignite any fuel that is blown out when you try to start it). Now, making sure you're not in contact with the engine or plug, hit the starter. You should see a nice blue spark. If you don't, make sure the threaded portion of the plug is touching the engine (but the electrode is not) and try again. If you still don't see a spark, you either have a bad plug or a problem with the electrical system. Check to see that all the ignition wires are properly connected and that you can't see any cracks in the wires. If the wires are cracked, they should be replaced. If you're still not getting spark, it's time to consult a repair manual or call a mechanic.

  • 4

    If you've got fuel and spark, ascertain that your bike is getting enough air. Start by pulling off the air filter. If it's too dirty, you won't get the proper mixture of air and fuel in the carburetor or injection system. If it's clean, check to see that the air box is properly connected-- a loose hose or air leak can feed too much air into the system. If your bike is equipped with a choke, ensure that it's able to move freely and is not stuck in the "on" or "off" position.

  • 5

    If you've followed these steps and still can't get your bike to run, call in an expert. If you think you've narrowed down the source of the problem, describe the steps you've taken to point the mechanic in the right direction.


  • Buy F150 Parts.

    Jun 03, 2012 | Harley Davidson FXR Super Glide...

    1 Answer

    New plug will not turn over prime and still will not turn over or run


    Your mower engine has to have these things WORKING to run: 1. Compression (engine in good shape) 2. Strong Spark (magneto air gap has to be correct for strong spark) 3. Clean air ( good, clean air filter w/no air leaks) 4. Clean, fresh fuel supply (gas less than 30 days olds with an inline filter installed in mower's fuel line). These things are assuming the mower hasn't struck an immovable object such as concrete, tree stump etc. recently. This will shear the flywheel key and timing may be off so far that engine won't start. So, where would you like to start my friend? Try checking these things. In the meanwhile....we can try to "coax" the engine into running. Remove the spark plug. Get an aerosol can of carb/choke cleaner spray. Spray a couple of shots into the engine. Reinstall plug. Choke the carb and attempt to start. This may or may not work, according to the conditions listed earlier. If this doesn't get it running, remove the plug and try it again.
    We are trying to get it to run on its own, so it will start (or attempt to start) drawing fuel from the carburetor. Sometimes the brass bolt that holds the carburetor float bowl on gets clogged. You drain the gas, remove the bolt and clean all the small hole in the bottom and along the sides of it. This bolt is also the main jet of the carb. Cleaning this with carb cleaner can only help. If you do this, use NO metal objects to poke or scrape the bolt. The holes are metered and have to stay that way. Check for spark, check your air filter, see if the plug gets wet after you attempt to start. If it doesn't get wet or even smell like gas, then likely you have a fuel flow problem. Try ALL these things and post back; and again, if you have hit something solid recently with the mower, you will have the replace the flywheel shear key. It is a small aluminum $1.00 part so don't worry. Post back as needed. We wish to help.

    Jun 19, 2011 | Toro Power Lawn Mower

    1 Answer

    It doesn,t turn over at all has new spark plug bowl is full gas lines are good pull cord is good help


    Remove spark plug and and ensure there is actually a spark when the machine is cranked.
    Ensure air filter is clean. Foam elements can be washed with hot water and detergent, squeezed dry in a cloth and re-oiled with a teaspoon of engine oil spread through the foam. Paper elements can be cleaned with compressed air blown from the inside of the filter but ideally should be replaced.
    Check fuel lines aren't kinked or blocked restricting fuel flow.
    Ensure fuel filter isn't dirty. This is probably located at the end of the fuel line in the tank.
    Remove the air filter and check the choke plate closes ok when choke is turned on.
    Air locks in the fuel lines will also cause this symptom. These can be caused by running the machine with low fuel level in the tank and cutting upside down or at a sharp angle.
    To remedy this keep pressing the primer button i present until it feels spongy and fills with fuel.

    Mar 05, 2011 | Weedeater 2 Speed Gas Blower FL1500LE ()

    1 Answer

    A fterI warm up my 01 rm 250 my bike don't start


    Possibly the choke is getting stuck internally, Even thoug the leaver may be in the closed (normal) position, it may be sticking internally. Try removing the choke and cleaning the passage with some carb cleaner, then replace the lever. The bike could run with a partially cloged choke but would be tough to start when warm due to too much fuel. Another thing to check, when it is hard to start, just after kicking it over a few times, remove the spark plug and see if it is wet with gas. My guess is that's it's soaked. Good luck.

    Apr 04, 2010 | 2003 Suzuki RM 250

    3 Answers

    1995 Jeep Cherokee Country straight 6 cyl 4.0L: I


    First of all, the fuel pump is generally located in the fuel tank, not always though. Yours probably is, in did not research it. The fuel electric fuel pump turns on only when the ignition key switch is turned to the start position and then left on. A series of one or two relays along with a pressure monitor in the fuel rail delivery system may or not cycle it on and off depending on design. Enough of that. I suggest that you remove the spark plugs to see if they are oil/heavy cabon deposits.If so, professional attention is reguired. One more thing you could try is replacing the spark plug wires. the may be old/worn out/damage. This would give the engine spark a stronger spark,if worn and also replace the spark plugs.

    Jul 30, 2009 | 1995 Jeep Cherokee

    1 Answer

    I have Boxer AT bike of 2003 made. It has Kehin PC 18 Carburetor and when I use the choke to start the bike, the bike not start at all. What's shall I do?


    It seems tht it also doesn't start wth the choke in 'off' position.
    Two things:- (1) :-check if the spark plug is wet wth fuel.(Crank it for a little cranks and thn remove the spark plug to check if its wet.)
    (2) :- check if you do get sparks at the spark plug, by grounding it to the engine away from any fuel fumes!
    I am sure one of the two is missing thts why its not starting.
    Let me know the out come please.

    Jul 27, 2009 | 2005 Bajaj CT 100

    1 Answer

    1993 Honda Nighthawk Stalls w/out choke on


    make certain it has compression and has spark and is getting plenty of fuel and the air filter is clean. clean carbs air filter and fuel filter and new plugs.

    May 27, 2009 | 2004 Honda VT 750 Shadow Aero

    1 Answer

    98 CBR F3 doesn't stay running w/o choke on


    There seems to be fuel starvation to the carbs.
    Check the fuel filter and the petcock, not bad too to clean the carb/s.

    May 22, 2009 | 1996 Honda CBR 600 F(3)T

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