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PostPosted: Thu Jun 23, 2016 10:01 am 
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Joined: Wed Mar 30, 2016 8:36 am
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Location: Houston, TX, USA (NE Houston)
Good Morning,

I installed the Acerbis tank yesterday after work and the bike runs rough, bogs, and dies. I used the supplied petcock so is this new found problem due to not sealing off the vacuum line? should this be closed off? or does the fuel inlet on the carb need to be rotated to face the petcock and get rid of that nasty angle the line is sitting at now? or a combination of both?

thanks


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PostPosted: Thu Jun 23, 2016 10:16 am 
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Yes. The vacuum line. If you don't plug it you have a huge vacuum leak. It won't run right.

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PostPosted: Thu Jun 23, 2016 11:58 am 
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Location: Houston, TX, USA (NE Houston)
Thanks, any recommendations on this. Do they make a cap for it? Cut the hose down and silicone the end or use a rubber plug?


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PostPosted: Thu Jun 23, 2016 12:04 pm 
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Joined: Sat Mar 17, 2012 5:31 pm
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Location: Central Florida, Where the clueless go to drive...
Be careful with the caps and plugs they sell at the auto parts store, they can't take the heat very well, most use a properly sized bolt screwed into the vac line, a little RTV will help it to seal air/vacuum tight. I myself prefer golf tee's... :rofl:

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PostPosted: Thu Jun 23, 2016 5:50 pm 
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Joined: Thu Apr 21, 2016 7:31 am
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Location: Centre County, PA
Sandcrabdave wrote:
...most use a properly sized bolt screwed into the vac line...


I can vouch for this method. It was free and has worked for the last ~4000 miles.


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PostPosted: Thu Jun 23, 2016 6:48 pm 
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SuperMoto Dude
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Joined: Sat Dec 06, 2014 9:03 pm
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Location: Western, NC
Sandcrabdave wrote:
Be careful with the caps and plugs they sell at the auto parts store, they can't take the heat very well, most use a properly sized bolt screwed into the vac line, a little RTV will help it to seal air/vacuum tight. I myself prefer golf tee's... :rofl:

Sandcrab's right, I used a cap from autozone and within a year it turned hard and started to crack. They came in a pack of 6 or 8 so I have another on, but I'm going to use a short piece of fuel line with a bolt in the end when I get around to it.


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PostPosted: Thu Jun 23, 2016 6:55 pm 
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If you are going the cap route, use the silicone caps. They handle heat much better and tend not to dry out or crack over time.


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PostPosted: Fri Jun 24, 2016 12:30 am 
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Location: Hawaii, USA
Any reason you cant fold the hose so it makes a sharp 180 degree bend and zip tie it? Seems easier than a bolt and at least as reliable.


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PostPosted: Fri Jun 24, 2016 5:57 am 
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br1ckd wrote:
Any reason you cant fold the hose so it makes a sharp 180 degree bend and zip tie it? Seems easier than a bolt and at least as reliable.


Nothing wrong with this method, just not a clean.

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PostPosted: Fri Jun 24, 2016 8:43 pm 
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SuperMoto Dude
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Joined: Wed May 01, 2013 2:32 am
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Location: Melbourne, Victoria, Australia
br1ckd wrote:
Any reason you cant fold the hose so it makes a sharp 180 degree bend and zip tie it? Seems easier than a bolt and at least as reliable.


yep that's how I have it on my bike, I also stuck a bolt on for good measure.

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2006 DR650, Acerbis 25lt Tank, Corbin seat, Staintune System, Barrett Universal Racks, B&B Bashplate, B&B Rear Carrier & Plate, Lowered Pivot Pegs, Anti Vibe Rox Risers, Renthal Twinwall Bars
BST Magic, 2" hole in airbox, snorkle removed, drilled 2x 3mm slide, 20mm tapered needle, white D spacer "off shelf" 3rd clip down, #155 Mikuni main and #45 pilot jet. Spring cut to 100mm, air screw 2 turns out


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