Author |
Message |
Pwillikers
| Posted on Wednesday, May 05, 2010 - 10:45 am: |
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Prior to installing the California Carbon canister on my '09 cr, fuel dripped out the overflow tube on a fairly constant basis. Since installing the canister, the dripping is gone, but occasionally, a strong smell of fuel is still evident. Less than before but evident. In addition, I've twice encountered rough running in the first minute immediately upon restarting after a quick, five minute stop. It felt as though one cylinder was misfiring. The canister's stock vacuum hose location (TB venturi) clearly delivers all the fuel in the canister to the front cylinder. The closed loop O2 sensor/fuel injector should compensate for additional fuel from the canister unless the quantity was excessive. Given the size of the gas puddle on my garage floor prior to adding the canister, the amount of fuel delivered from a saturated canister may indeed overwhelm the front cylinder's ability to consume it. BadWeb user Trafford plumbed his canister vacuum line into his airbox. I surmise this location would generate significantly less vacuum at the canister than does the stock vacuum hose location at the TB venturi. In fact, it might not generate enough vacuum to purge the canister. Before many others perform this modification, I suggest someone measure the vacuum at the canister in both implementations. Since the misfiring I encountered only happened twice and cleared up completely after a minute so, I can't think of a reason to worry much about it - unless I'm pulling out in traffic. :0 Am I missing something? |
Aeholton
| Posted on Wednesday, May 05, 2010 - 12:19 pm: |
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Haven't noticed the misfire, but I do experience hard to start issues with a hot engine when it's been sitting 5-10 minutes. Usually requires twisting the throttle quite a bit to start and then it revs way up. I believe the only thing that is going to help is really good frame insulation and wrapping the headers. However, as I've stated previously, rotating the engine to do it is beyond something I am inclined to attempt in my garage. |
Trafford
| Posted on Wednesday, May 05, 2010 - 01:17 pm: |
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There is a lot of vacuum in the airbox!! The engine is moving a 1.1 litres of air every turn of the crank......work out what that means!! |
Aeholton
| Posted on Wednesday, May 05, 2010 - 09:06 pm: |
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Temps in the high 80's here today. Got stuck in stop and go rush hour traffic. Saw CT of 204*F and AT of 134*F on the dash. When I finally made it home my bike was stinking of gas (I have canister installed). It was a good hour before smell was tolerable enough to roll into garage. |
Dktechguy112
| Posted on Wednesday, May 05, 2010 - 09:58 pm: |
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check your canister, i noticed that mine has 2 hoses coming out of one side, and the other side has what appears to be vent, i noticed that some gas had come out of the vent and was on the trunk. |
Fresnobuell
| Posted on Wednesday, May 05, 2010 - 10:13 pm: |
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Guys, as someone who has gone thru 2 summers in a hot climate, you WILL get a fuel smell on the hot days. although I remember it being a little hotter than what you are describing. The carbon can is not a perfect fix at all--better for sure. Funny you guys put in the can and I take mine out. For me the startup issues and possible drivability issues outweigh some peeing gas. |
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