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Old 03-04-2011, 02:24 PM   #1
wesleh
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bad gas

i just recently bought a 2007 honda shadow spirit 750, i only ride about 5 miles a day. i know gas can go bad in about two weeks or so. Since i dont ride that often will the gas go bad even though im riding it 5 miles a day? should i put some stabilizer just in case? what do ya think? thanks
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Old 03-04-2011, 03:35 PM   #2
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Data I have seen shows todays gas degrading pretty quickly. I would say 3 weeks based on what I have been reading. My mower will still run on last summers gas though. It wouldn't hurt at all to use some Sea Foam or a similar product. The Amsoil guy will chime in soon and recommend a product too.
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Old 03-04-2011, 03:54 PM   #3
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Old 03-04-2011, 03:57 PM   #4
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Quote:
Originally Posted by w3sl3h View Post
i just recently bought a 2007 honda shadow spirit 750, i only ride about 5 miles a day. i know gas can go bad in about two weeks or so. Since i dont ride that often will the gas go bad even though im riding it 5 miles a day? should i put some stabilizer just in case? what do ya think? thanks
I think you should give me the bike and let me ride it for you...
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Old 03-04-2011, 04:13 PM   #5
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haha possibly but when i took it to Motorcycles Unlimited for free inspection they said the idle is still a bit off due to it sitting for too long, carbs were cleaned out before i bought the bike but didnt do a very good job. didnt want it to get worse thats all
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Old 03-04-2011, 04:16 PM   #6
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Clicked on thread...not what I expected. Title was misleading. Leaving now to go fart somewhere else.
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Old 03-04-2011, 04:21 PM   #7
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Old 03-04-2011, 05:11 PM   #8
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Ride Moar.
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Old 03-05-2011, 12:08 PM   #9
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Reclean the carbs thoroughly. I went through this last spring, and after a carb flush/ clean, it rode like a champ.
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Old 03-05-2011, 02:15 PM   #10
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I've had really good experience with Seafoam. Wally World has the cheapest price if you can find it in stock. Use only 1 oz per gallon but you can put more in there and it should help clean out the carbs.
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Old 03-05-2011, 03:38 PM   #11
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The water/ethanol separates from the gas and floats. When the tank of gas gets low the separation will allow the bike to idle and run when its warm but will clog the carbs when cold and cause oxydation.

Fuel w high ethanol rating can begin to separate within 2 days.

I regularly test and find upwards of 25% ethanol gas in BMWs from non-top tier gas stations.

Seafoam is a strong detergant, recommended to be added w gasoline to clean out deposits before they become an issue.

Stabil is designed to prevent separation by homogenizing the gasoline if you need the bike to sit wo operation. Read the instructions on the back, run the bike w the Stabil and drain the carb bowls as recommended before putting the vehicle up.
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Old 03-05-2011, 04:04 PM   #12
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Ride Moar.
This

and go through the carbs again
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Old 03-05-2011, 07:05 PM   #13
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Quote:
Originally Posted by CaligoneTx View Post
The water/ethanol separates from the gas and floats. When the tank of gas gets low the separation will allow the bike to idle and run when its warm but will clog the carbs when cold and cause oxydation.

Fuel w high ethanol rating can begin to separate within 2 days.

I regularly test and find upwards of 25% ethanol gas in BMWs from non-top tier gas stations.

Seafoam is a strong detergant, recommended to be added w gasoline to clean out deposits before they become an issue.

Stabil is designed to prevent separation by homogenizing the gasoline if you need the bike to sit wo operation. Read the instructions on the back, run the bike w the Stabil and drain the carb bowls as recommended before putting the vehicle up.
Think what that 25% is doing to milage. It 50% ethanol than gas to make the same amount of energy. Engines could run lean on that much corn.
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Old 03-05-2011, 07:10 PM   #14
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The last 25% ethanol vehicle was a 2010 535i(twin turbo) with no check engine light and rough running cold start. At idle operating temperature I could still fill the partial misfire.

For a vehicle w that type of electronics and control, ALOT can be patched by the DME. To be running as it were fuel was a my first priority for diagnosis.
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Old 03-08-2011, 08:58 PM   #15
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Quote:
Originally Posted by CaligoneTx View Post
The water/ethanol separates from the gas and floats. When the tank of gas gets low the separation will allow the bike to idle and run when its warm but will clog the carbs when cold and cause oxydation.

Fuel w high ethanol rating can begin to separate within 2 days.
The varnish left by ethanol can wreak havoc on your carbs. The low speed jets are usually affected first. If they're clogged, your bike will be hard to start, and if it gets bad enough, will only run with the choke on.

If the gasoline in your tank has already begun to separate, starting it for a few minutes or riding it around the block every once in awhile won't do any good. The gas you're starting it on has separated, and when it dries in the carbs, it leaves varnish. This is first-hand experience. The guy I bought my bike from let it sit and would start it occasionally. It had the same tank of gas in it for over a year. When I got it...let's just say it needed a little TLC.

I read an article (I will try to find it again) that said riding your bike for less than 10 miles doesn't let it warm up enough to burn off the condensation created on startup. Not sure about the veracity of that, but it makes sense.
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Old 03-08-2011, 09:02 PM   #16
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I had to rebuild the carbs in my boat twice after only sitting for a month each time.
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Old 03-10-2011, 01:31 AM   #17
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Quote:
Originally Posted by pinball View Post
The varnish left by ethanol can wreak havoc on your carbs. The low speed jets are usually affected first. If they're clogged, your bike will be hard to start, and if it gets bad enough, will only run with the choke on.

If the gasoline in your tank has already begun to separate, starting it for a few minutes or riding it around the block every once in awhile won't do any good. The gas you're starting it on has separated, and when it dries in the carbs, it leaves varnish. This is first-hand experience. The guy I bought my bike from let it sit and would start it occasionally. It had the same tank of gas in it for over a year. When I got it...let's just say it needed a little TLC.

I read an article (I will try to find it again) that said riding your bike for less than 10 miles doesn't let it warm up enough to burn off the condensation created on startup. Not sure about the veracity of that, but it makes sense.
i needa ride moooar! lol
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