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2001 CBR 600 F4i Leaking gas from exhaust

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  #11  
Old 05-25-2012, 09:55 AM
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If you have gas coming out your exhaust, that's a symptom for a bad fuel pressure regulator, especially you were saying that it was running crappy too.
 
  #12  
Old 05-26-2012, 04:48 PM
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That happened to me one i had a lil puddle of gas on the floor when i turned my bike on....solution? Disconnected my powercommander.
 
  #13  
Old 06-12-2012, 12:33 PM
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Hey bro same exact thing happened to me Its your fuel pressure regulator dumping fuel into your cylinders easy way to confirm this is to drain your oil and if it smells like gas and is a milky color then its for sure the fuel pressure regulator. When this happened to me I had a rod bearing fail on me and got metal shavings in my oil so you probably wanna filter your oil to check for shavings. If there is no shavings Id put new oil and a new filter in and order a new fuel pressure regulator for $50-$60. By the way my bike had slightly lower compression on 1 cylinder too but it was only by 20psi when it was cold doubtful its something to do with your head did you check your timing?
 
  #14  
Old 06-29-2012, 01:01 PM
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Originally Posted by Burnthis
Hi guys, I have a 2001 CBR 600 F4i that has been sitting in my garage and on the side of the house for the past ohh 3 years. It has a new battery, and everything else from what I know is stock. Here is my issue, I was taking it on its first ride to work (5 miles away) and I got about 4 miles in when it started to stall on me as soon as I pulled the clutch and let the revs die down to an Idle. I had to hold the throttle open so as not to stall let it stall while stopped. Anyways, I attempted to limp it home after work and a person driving next to me pointed out at my next stop that my bike was leaking from the hole and clamp between the CAT and Muffler. I pulled into the gas station and filled her up with gas thinking it might just be water, and I had not filled it up with gas in 3 years. I filled up with 3 gallons and drove home still having to hold an idle at stops. By the time I got home the bikes fuel tank was empty and the bike was gushing out fluid (I think Fuel) from in-between the CAT and Muffler. What would cause this and how do I fix it?
Hi Burnthis I wanted to ask you if you fix your problem? if yes what was it? I have a 2001 f4i and it happened the same thing to me but i don't know where to start I'll appreciate any help or updates from fixing your bike thanks.
 
  #15  
Old 06-29-2013, 09:26 AM
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Default Same problem, fuel leaking from exhaust

Originally Posted by juanf4i
Hi Burnthis I wanted to ask you if you fix your problem? if yes what was it? I have a 2001 f4i and it happened the same thing to me but i don't know where to start I'll appreciate any help or updates from fixing your bike thanks.
Gents,
I have a 2001 F4I and just got the exact, word for word, problem as both of you. Bike in storage for a long time, took it out, fuel gushing out the exhaust pipe. Did either of you resolve the problem? If so how? Was the fuel pressure regulator? something else?
 
  #16  
Old 06-29-2013, 01:02 PM
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I just fixed a bike with the same problem over the winter.

Rust in tank, clogged fuel pump, clogged fuel regulator, clogged injector... lead to leaking fuel...

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Replaced fuel tank, replaced fuel pump, replaced fuel regulator, replaced injector (just 1)... runs like a champ now.

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  #17  
Old 06-29-2013, 02:33 PM
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Thanks dude. I'll start a tear down and look to replace the fuel regulator and will inspect the injectors. Maybe one of those is stuck in the Open position.
 
  #18  
Old 07-06-2013, 03:49 PM
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Problem fixed - it was the FPR. Easy to replace, and probably saved me a ton from taking it to a shop.
 
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