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Old 03-18-2014, 09:50 PM   #1
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Burn off old gas or drain it

Bike sitting for a bit over 8 months.

So... should I fire it up and run through the gas in the tank or drain it the best I can and then fill it fresh?
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Old 03-18-2014, 09:53 PM   #2
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Siphon it out.
Put in some fresh fuel and add some Chevron Techron Fuel System Cleaner.
You can get it at O'Reillys, Autozone, etc.
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Old 03-18-2014, 09:53 PM   #3
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Quote:
Originally Posted by bioGuru View Post
Bike sitting for a bit over 8 months.

So... should I fire it up and run through the gas in the tank or drain it the best I can and then fill it fresh?
I would drain it, and run fresh fuel with an injector cleaner or race fuel.
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Old 03-18-2014, 09:54 PM   #4
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Quote:
Originally Posted by Patrick View Post
Siphon it out.
Put in some fresh fuel and add some Chevron Techron Fuel System Cleaner.
You can get it at O'Reillys, Autozone, etc.
^^this....I actually just did it the same this morning on a track bike I just purchased. Go get a bulb siphon, its like $5....took me about 5 minutes to get all the fuel out of it....
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Old 03-18-2014, 10:19 PM   #5
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Thanks guys. Will do!
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Old 03-18-2014, 10:19 PM   #6
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I would also drain and replace the oil/filter, check the air filter, and change the spark plugs. Also bleed the breaks and clean/lube the chain.
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Old 03-18-2014, 11:22 PM   #7
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Quote:
Originally Posted by Patrick View Post
Siphon it out.
Put in some fresh fuel and add some Chevron Techron Fuel System Cleaner.
You can get it at O'Reillys, Autozone, etc.
Even if its just a gallon of gas left?
Im having the same issue with my zzr.
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Old 03-19-2014, 06:07 AM   #8
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Even if its just a gallon of gas left?
Im having the same issue with my zzr.
I would try to drain it and put fresh gas

the zzr has carb's if I remember correctly... your going to need to take them apart and clean them too, depending on how long it has sat the gas in the carb bowl has either turned into a gel or the gel has dried is now crusty in there.

when it comes to the dirt bikes I will drain and clean the carb even if its been sitting a couple weeks.
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Old 03-19-2014, 06:47 AM   #9
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This is why during the colder months I always have the gas mixed with stabil marine. You never know exaclty how long it will sit...
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Old 03-19-2014, 08:04 AM   #10
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Gas these days goes to quick and can cause carb issues quickly
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Old 03-19-2014, 09:04 AM   #11
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drain it and use it in the lawn mower, it wont care if its drinking crappy gas
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Old 03-19-2014, 09:09 AM   #12
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If I had a carb'ed bike I wouldn't leave gas in the carb.

I agree with draining, $3 of gas is not worth pushing all that junk through your motor.
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Old 03-19-2014, 09:26 AM   #13
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drain it for mower/weedeater gas
x2 on the plugs & filters

use stabil nex time
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Old 03-19-2014, 11:03 AM   #14
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in my opinion you should never leave gas in a bike that long. especially with the new ethanol gas. it is not made from petroleum so it absorbs a large amount of moisture from the air and that is horrible for engines. although most engines limit the contact with air the gas can get why take the chance?
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Old 03-19-2014, 11:25 AM   #15
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Quote:
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in my opinion you should never leave gas in a bike that long. especially with the new ethanol gas. it is not made from petroleum so it absorbs a large amount of moisture from the air and that is horrible for engines. although most engines limit the contact with air the gas can get why take the chance?
Am I reading your post in saying the gas we use is no longer made from petroleum?
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Old 03-19-2014, 11:29 AM   #16
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I run startron and seafoam in all tanks of gas regardless of how long I think the bike will sit these days....per the recommendation of Patrick. And I don't care to incur another carb rebuild repair for a LONG time.
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Old 03-19-2014, 11:30 AM   #17
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10% of the gas now is made of ethanol which is made of corn. the difference is petroleum does not mix with water while ethanol will.
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Old 03-19-2014, 11:41 AM   #18
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Ok the post made it sound like none of the gas is made from petroleum.
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Old 03-19-2014, 11:46 AM   #19
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10% is bad enough . if 100% ethanol might as well buy a electric scooter
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Old 03-19-2014, 11:50 AM   #20
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I run startron and seafoam in all tanks of gas regardless of how long I think the bike will sit these days....per the recommendation of Patrick. And I don't care to incur another carb rebuild repair for a LONG time.
forgot to mention that, I use startron aswell..
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go ahead and cry so I can use the tears as lubrication to stick it in you
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