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Old 03-28-2012, 03:04 PM   #1 (permalink)
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Unhappy 2001 polaris 550 ss

i just bought/traded for my first sled. I know nothing about sleds at all though. When I was looking at the sled it started first pull and actually once I got it home it also started first pull. The guy rigged on a fuel valve and I couldnt tell if it was open or closed. I think parallel to line would be open but not sure. Anyway, after like a week in my garage I was trying to start it. It ran for a minute then stopped. Think the fuel valve was off and it didn't get fuel. anyway tried to restart and haven't been able to since. Wonder if I flooded it? but that was last night and it wouldn't even start this morning. If it doesn't start when I get home should I take out spark plugs and dry with rag? Also, and this makes me sound like an even bigger dummy. I see it has an oil reseviour under hood. This would mean I don't mix the gas going in the tank right? was going to buy a service manual but they wanted $90 for it and cant do it. Any help would be greatly appreciated.
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Old 03-28-2012, 03:19 PM   #2 (permalink)
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welcome to the forum.

your sled is oil injected, so just make sure
that tank has oil in it at all times.

id do a compression test, check for good spark,
and install new plugs.
go from there.
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Old 03-28-2012, 03:23 PM   #3 (permalink)
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will do. thanks for the help.
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Old 03-28-2012, 03:29 PM   #4 (permalink)
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any questions just ask.
thats why were here.
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Old 03-29-2012, 02:04 PM   #5 (permalink)
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The first thing I would do is pull the plugs and dribble some gas into each cylinder. Put the plugs back in and pull it over. I'll bet you ran it out of gas and the carbs have not filled back up yet. If it's flooded, you may get a bad compression reading, and the plugs will be soaking wet.
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Old 03-29-2012, 03:30 PM   #6 (permalink)
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i took out plugs last night. they did have lot of oily/gas on them. so I wiped them off with a rag. covered plug holes with a rag and pulled it to clean it out better. put plugs back in and it almost turned over, but not quite. think I will try dropping a little gas in there. and going to pick up new plugs over the weekend too.
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Old 03-29-2012, 08:21 PM   #7 (permalink)
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if they were wet, check for spark,if spark,
then put new plugs in.
make sure theres fuel in line to carbs,
and in tank.
fouled plugs is the first thing i check on
everything and go from there.
90% of the time plugs fix problem. just saying
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Old 03-29-2012, 09:42 PM   #8 (permalink)
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Just making sure ur aware. When he says that oil tank must be full, we don't mean automotive oil. At any Wallmart or sled dealer they will have snowmobile injector oil that is certified for low temperature 2 stroke use. Be sure to use that stuff, cuz if u run 10w-40 in ur injector oil, u will blow the engine. Just sayin, cuz I have heard of people that have done that sort of thing and it ends up costing them thousands.


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Old 03-29-2012, 10:05 PM   #9 (permalink)
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good point, guess i shoulda specified 2-stroke oil.
sorry all.
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Old 03-30-2012, 11:01 AM   #10 (permalink)
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oil tank is 1/2 full. I pulled the spark plugs and put a little gas in plug hole. It started and ran for a few seconds then died out. I'm going to get new plugs tomorrow. I'm hoping this is just from me letting it run out of gas. It did start right up when I bought it. thanks guys for all the input. I am not an engine guy by any means but would love to learn.
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Old 03-30-2012, 11:29 AM   #11 (permalink)
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Make sure your fuel line is on, if it's not, it wont run since you ran the fuel dry in the carbs. Re filling the carbs is kind of a pain and takes a lot of pulling!
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Old 03-30-2012, 11:42 AM   #12 (permalink)
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yep. I think I've now figured out the fuel valve the guy rigged up that I bought it from. It is ok to put a little gas in hole from spark plugs right? I'm hoping if I keep at it and replace the plugs I will eventually get it started back up again.
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Old 03-30-2012, 12:23 PM   #13 (permalink)
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The only issue with using straight gas is that it contains no lubrication. If you have to do it more than a few times, there's a chance of scoring the cylinders from lack of oil. Consider using mixed gas; if you have a chainsaw, the gas for that works perfectly. I use mixed gas or staring fluid. Some starting fluid contains a top-end lubricant to keep damage at a minimum. Look for that kind if you buy.
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Old 03-30-2012, 06:38 PM   #14 (permalink)
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X2 what BC Dan said. I have a gallon can that I use with either weedeater or ice auger depending on time of year. I have oil mixed 40:1 in there.
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Old 03-31-2012, 08:17 AM   #15 (permalink)
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Welcome. I just worked on 05 550fanner this year so i know some things to look for.

One is it flooding? how do the plugs look when it dies. or if they are not wet and you have to keep pouring gas in to keep it running it needs a carb job for sure

2. i would buy or download a manual somewhere if you are newer to learn how to clean the carbs. Odds are if it sat for a while the jets are gross and clogged

3. we had to put new needles in this 550 because it was just flooding like crazy. When i took the pipe off over a gallon of gas came out of this kids motor. was nuts. once we put new needles and a carb cleaning it was fine.
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