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Old 02-26-2011, 12:24 PM   #1 (permalink)
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summer storage help on cfi engine

On a 2011 600 shift with clean fire injection, should i drain the fuel tank, run the engine to use up all the fuel in the injection system, and finally spray some fogging oil in the spark plug holes. On previous xc's and indy's we would remove the air box, shut the fuel off, and run the engine while spraying fogger in the carbs until the motor almost choked out. At that point, we would drain the fuel tank and the carb bowls dry. Using this process on the xc's and indy's we never had an issue next season. Any suggestions on the 600 cfi would be welcome. Thanks.
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Old 02-26-2011, 03:01 PM   #2 (permalink)
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On my older carb sled I filled the tank, dumped a bottle of fuel stabilizer in, ran that through for a few minutes, then pulled the plugs, poured a little oil in the cylinders and pulled it over a few times (with a rag over the spark plug holes!!) Then drained the coolant, because it had eaten through a bottom-end gasket the summer previous.

I'm new to the cfi game as well, I'm curious if there is something different I should be doing too..
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Old 02-26-2011, 07:56 PM   #3 (permalink)
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I wouldn't drain anything. Fill the tank with non-oxygenated fuel, run some stabil in it, and start it up over the summer a few times. If that's not possible, fogging is ok, but draining the injection system will require a lot of pulling to get it going again next season. The gas inside the rails doesn't have any openings to the atmosphere and doesn't varnish out like a carb will, so it will stay comparatively fresh over the summer.

Then, next winter when it's time to get the sleds out, include 1/2 can of SeaFoam with the gas and you should be good to go. That is what I do in both my CFI sleds...
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Old 02-28-2011, 03:50 PM   #4 (permalink)
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BC Dan,
Thanks for the info. Here in Maryland we do not seem to have non ox. gas available. If i ran the engine/injection system dry would it take 10-15 rope pulls next season to get it started again?
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Old 02-28-2011, 06:14 PM   #5 (permalink)
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The gas in the rail won't be a problem, even with the alcohol in it. It's a closed system and will not evaporate. I wouldn't worry about running the rail empty, in a pressurized system, that's really not good for them. But I would drain the tank and fill with fresh next winter. If you don't run the sled in the summer, fogging oil works to keep the parts lubricated, but will foul the plugs next winter when it's time to get the sled started. Have extra plugs on hand
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