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Old 04-19-2009, 09:56 PM   #1
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If your Polaris Ran out of gas, now it won't start

Some Polaris machines use an impulse fuel pump between the fuel tank and the carburetor. It works well as long as fuel is in the lines. However, sometimes it needs a little help overcoming vacuum lock. This most often occurs after long storage periods, or after you run out of gas, and the engine stalls. You crank and crank, but the machine refuses to fire. Sometimes, you can apply the choke to a warm engine, and it will start, other times it may only pop, but not fire up and run. There is a way to fix this.



Remove the seat.

At the front of the air box, you will see a rubber 'horn' for the intake. Simply put your hand over the intake horn, sealing it off the best you can, and crank the engine. Usually, within 10 seconds of cranking or so, it will fire. Remove your hand as quickly as it fires up, to prevent flooding the engine. Better yet is to have a friend hold their hand over the intake, and you apply throttle as you crank. What you are doing is trying to increase the vacuum enough to overcome the vacuum lock in the fuel lines.

Some machines have a snorkel, or intake that disappears up near the gas tank that you can't conveniently cover. If this is the case, remove the air box cover, and air filter. Cover the intake to the carb as best you can (even a sock sometimes works). You may have to be inventive, but if you can block off the intake enough to build up good vacuum, you will draw the fuel to the carb.
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Old 04-20-2009, 07:18 AM   #2
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Old 04-20-2009, 12:08 PM   #3
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Old 12-04-2010, 12:08 PM   #4
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my 2009 sportsman 500 HO has been in storage for a few months and now it will not start. Dealer said that the gas in the carb. has turned into varnish and needs cleaning. any suggestions
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Old 12-04-2010, 01:44 PM   #5
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Should be a drain on the carb.
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Old 12-27-2010, 09:44 PM   #6
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Scrambler not getting fuel

Hello,
Thanks for the tip on how to get fuel to the carb.
I bought an '07 scrambler in the fall and it ran when i was looking at it and when i unloaded it. I didn't have any time to use it and it sat for a couple of months. When i finally got some time to use it, it wouldn't start. I just got a chance to look into it last weekend and found out it wasn't getting fuel. I tried a few things before searching on the internet and coming across this tip. I tried plugging the intake and when i do this, the machine runs for a few seconds and then dies. I haven't had a chance to look at it any more but i was thinking there might be a problem with the fuel filter or fuel pump so i bought a fuel filter and rebuild kit for the fuel pump. Do you guys think either of these might be the problem? Or is there something else i should look at first?
Please let me know if this isn't the place to post this.
Thanks,

George
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Old 01-04-2012, 03:44 PM   #7
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i don't know about you guys in the US but here in Canada our full is garbage the cheapest gas will go bad after 1 month of sitting and therefor plug your carb up and possibly rot the gaskets in the carb so if you are going to have anything sitting for more than 1 month you should fill it with premium gas and also put fuel stabilizer (this will keep the gas good for about 6 months $16 here) in it and make sure you run your bike/appliance for a little bit after putting the stabilizer in your gas to get it into your carb and same thing goes with Jerry cans hope this helps








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Old 01-04-2012, 05:10 PM   #8
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Good post. Another helpful tip is if the fuel pump or system is vacuum operated it won't work very well without an air filter for the same reason there's not enough restriction to build vacuum and suck fuel into the carb. Covering the carb intake will cause it to creat vacuum and suck fuel into the carb.

So if you're having trouble getting started without an air filter that's why!


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