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The problem is the needle valve in your carb is partially clogged. It's not letting enough gas into your carb fast enough. You let it sit for 10 mins and it slowly fills the carb's bowl back up. Then you ride it and it empties the bowl of gas faster than the needle valve can keep it full and the snowmobile dies. Get the carb cleaned and it will fix your problem
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.
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.
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.
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.
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.
Is it getting to much feul? May need to clean the carb if its been sitting with gas in it. Is the spark plug wet? Make sure the insulater on the business end of the plug is in good shape, no cracks, or erosion of the spark gap. Is the air filter clean and in good shape? Are you running old gas? If so try draining it and replaceing with fresh.
These are the basic checks for any engine, beyond that it's looking for gasket leaks around the head and cylander and compression testing. You may not have the tools to do the more in depth tests, so a trip to the dealership or service center may be in order.
Hi guy, you told me alot just now. Clean your injectors well, snowmobile 2 cycles all smoke rather heavy for a few minutes after sarting so that is comon.Caused by the oil settling in the chamber after shuting off. If not for this the cylinders would freeze up being dry. You may have some bad oil in injector also if it sat for a time without being started. Just remember, never, ever use starting fuild to start WD40 works well though. Check your plugs for correct heat range and gap, again, 2 cycles are very touchy with this also. Make sure you have proper injection pressure as well as fuel injector pressure. Fresh synthic 2cycle injection oil and go cleaning should solve your problem unless there is major problems with frozzen rings.
You are on the right track. Do check the air cleaner, and also check your oil level and condition. If the oil's been in there for 3 years, I'd change it. Also pull the carb off the motor, and get a spray can of carb spray cleaner and clean the bowl, needle valve, around the float, and in any ports, jets, etc. Drain a bit of the gas out and check to make sure you've got gas flowing, that it's clean and not blocked.Look in the carb bowl...make sure it's not full of sediment, water etc... Spray all the carb linkage and make sure it's all working freely. While you're at it, use the spray cleaner to spray off the tip of the spark plug, and use some fine sandpaper to clean up the electrode. Then pull the motor thru with the spark plug out , but still attached to the spark plug wire and check for spark. If no spark, replace with a new one. If it's an older style ignition, it may even have contact points that youll need to clean and regap..
Did you change the fuel filter? Is there a way to confirm that you're getting gasoline to the carburetor? If it fired once it should mean that you have spark to the plugs but there could also be a short in the kill switch circuitry that kills the ignition system. Pull a spark plug and put it in the spark plug wire socket, ground it against the motor and crank the engine and see if you're getting a good spark. Ensure that the air filter isn't dirty.