2003 snopro 440 - Fuel questions - ArcticChat.com - Arctic Cat Forum

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post #1 of 8 Old 01-04-2012, 01:10 AM Thread Starter
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2003 snopro 440 - Fuel questions

I just picked up an 03 snopro 440. This is my first cat so I'm ignorant to a lot about these things.

I THINK it has been "trail converted" because the preveous owner claimed to run C12, mixed. Or 95 pump fuel. Not 110. I read that the 03's just need to be remapped and you're good to run pump gas or c12.

It has the oil injection option. This is aftermaket for these right?

Really I am looking to find out what I should be running in this thing. Just keep running c12? 40:1? Or just run pump gas and the utilize the oil injection?

Please, school me before it snows! I appreciate all your input.

Last edited by strictlystunt; 01-04-2012 at 01:31 AM.
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post #2 of 8 Old 01-04-2012, 01:15 AM Thread Starter
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Also, the sled is pretty much stock besides studs & a stainless slp can.

I have to check when I get home but the timing dial is supposibly set perfect for running C12 mixed. It seems to run good. The preveous owner said the only time he had problems is when the fuel is left on.

Post pics tomorrow.
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post #3 of 8 Old 01-04-2012, 03:21 AM
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Do a compression check, it should be anywhere between 140-160. I am not sure about that, but alot of the newer sleds are around that.
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post #4 of 8 Old 01-04-2012, 03:30 AM Thread Starter
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Quote:
Originally Posted by darren.oldford View Post
Do a compression check, it should be anywhere between 140-160. I am not sure about that, but alot of the newer sleds are around that.
Compression seems fine. But I will test compression anyway.
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post #5 of 8 Old 01-04-2012, 03:31 AM Thread Starter
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I saw this posted on HCS forums about the 440's reguarding pump gas conversion.

Quote:
The odd one 2003 Sno Pro 440

This year only!!!!!

It has the high comp heads 95B3 but different porting in the jugs.
To run on pump gas all you have to do is send your CDI to Arctic Cat and have it reprogrammed.
Then rejet carbs to 310 mains.
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post #6 of 8 Old 01-05-2012, 02:07 AM Thread Starter
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Turns out it was not converted. Just had oil injection added. I might pick up another CDI to have sent out and reprogramed for pump gas incase I end up trail converting it later.

All I have to figure out now is what to run the timing dial at running c12 premixed 40:1
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post #7 of 8 Old 01-24-2012, 11:55 AM
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Ive ran 93,102,104 and 110 in my 03' SnoPro and never have had a problem. It still has the stock high compression heads on it still, no oil injection. I do turn the timing dial back when i run lower octane fuel
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post #8 of 8 Old 04-03-2013, 08:20 PM
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Sled: 2003 firecat 700 efi, 2004 rev 440
10-11 Mileage: 3000mi on the F7 689 on the rev
09-10 Mileage: 980mi
08-09 Mileage: 250mi
ATV: 2007 trx 450r
2010 Mileage: 789mi
2009 Mileage: 545mi
2008 Mileage: 2000mi
2007 Mileage: 400mi
hey would any one think that a shorty seat would fit and look good on a 2003 z 440 snopro
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