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Old 04-02-2011, 06:17 AM   #151
rider911
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I'm a bit concerned about the breather situation.

If I lay it down and for some reason cant pick it up straight away it could empty a shit load of fuel out before you know it!

I found this which looks like it could be the go.

http://www.merlinmotorsport.co.uk/p3555/ROLL-OVER-VALVE-1/4-IN-LINE/product_info.html

what do you think, apart from being expensive
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Old 04-02-2011, 07:44 AM   #152
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Originally Posted by rider911 View Post
I'm a bit concerned about the breather situation.

If I lay it down and for some reason cant pick it up straight away it could empty a shit load of fuel out before you know it!

I found this which looks like it could be the go.

http://www.merlinmotorsport.co.uk/p3555/ROLL-OVER-VALVE-1/4-IN-LINE/product_info.html

what do you think, apart from being expensive
"Valve must be mounted vertically." I wonder how sensitive it is to position. What if you mount it to stop flow at 90* but you only lay it over 60*. Will it still work?

Dave
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Old 04-02-2011, 10:21 AM   #153
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"Valve must be mounted vertically." I wonder how sensitive it is to position. What if you mount it to stop flow at 90* but you only lay it over 60*. Will it still work?

Dave
The concept is simply the use of gravity. The manly "two ball" system is basically two bearings that act as stoppers when the unit is in the vertical position (much the same as those units on a gas cap breather tube used on the MX and XC bikes to keep fuel from leaking out when the bike falls over). The gravity part is critical for keeping the system OPEN to allow the air in/out when needed to balance the pressure. When tipped over, the fuel flow should push the balls the other direction and into the stopper to cut off (or dramatically reduce) the fuel flow out of the breather. So they don't have to be a perfect 90* to work, but horizontally they will not work too well.
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Old 04-02-2011, 02:06 PM   #154
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Thank You Geek...
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Old 04-02-2011, 03:32 PM   #155
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So I got it in my head that I want my skid plate black and not that silver-etched black that black dog powder coats it with.

Why? I dunno. I'm an idiot. The black dog finish makes much more sense as it hides scratches and dents well.



...after going after it a bit you can see the plethora of impacts it has taken



including the giant dent (bottom of photo - clutch case protection) I put in it when it saved my bacon at Rose Garden hill in Moab last fall If it weren't for this skid plate I would have ripped my clutch cover clean off the bike no doubt.

... I'm not sure how much effort I wanna put into this. Its just going to get torn up anyways. Perhaps after I'm done and have the bike back together my new hobby will be applying touch up paint to my skid plate after every ride

If I had a brain in my head I would have painted the entire bike the same shade of brown as our local dirt.

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Old 04-02-2011, 04:54 PM   #156
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Originally Posted by StmbtDave View Post
"Valve must be mounted vertically." I wonder how sensitive it is to position. What if you mount it to stop flow at 90* but you only lay it over 60*. Will it still work?

Dave

Yeah I had the same concerns and emailed them for a schematic to see how it worked.
He said it probably wouldnt work too well at less than 90* but offered up an alternative that uses diaphrams rather than balls. It obviously creates very slight pos or neg pressures but I cant see that as a problem.
It is a bit large, but at the moment I cant see why it cant be mounted below the tank around the engine. Maybe one of you can see a flaw in mounting it below the tank.

Has anyone else come up with a plan on how to fix this problem?


911
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Old 04-02-2011, 04:59 PM   #157
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You could bolt up a 1/4" plate of Ultra High Molecular Plastic in black (industrial cutting board) as it'll protect it better and skid/slip better...that's what we are using on our trucks/buggies (in thicker flavor)...0 maintenance

That's what I'll be doing to my bike's skid.
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Old 04-02-2011, 05:00 PM   #158
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Originally Posted by rider911 View Post
Yeah I had the same concerns and emailed them for a schematic to see how it worked.
He said it probably wouldnt work too well at less than 90* but offered up an alternative that uses diaphrams rather than balls. It obviously creates very slight pos or neg pressures but I cant see that as a problem.
It is a bit large, but at the moment I cant see why it cant be mounted below the tank around the engine. Maybe one of you can see a flaw in mounting it below the tank.

Has anyone else come up with a plan on how to fix this problem?


911


Hmmm... what about running the drain all the way up to the top of the back of the windscreen and then putting some sort of pinch valve on it. When you fall over, just reach up and flip the pinch to seal it up until the bike's back on its feet? just thinking out loud
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Old 04-02-2011, 05:19 PM   #159
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just thinking out loud
Thats what we're here for




Quote:
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Hmmm... what about running the drain all the way up to the top of the back of the windscreen and then putting some sort of pinch valve on it. When you fall over, just reach up and flip the pinch to seal it up until the bike's back on its feet?
I thought about that but what if your injured and cant or you're really pissed at binning it and forget for a while.

It would nice to find a automatic solution
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Old 04-03-2011, 08:36 AM   #160
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I threw some primer on this morning.. but the temperature is falling quickly so I think I might wait to paint it until Tuesday.

Got a flat black etching primer but a satin black paint. If I don't like how the satin ends up looking, I might throw another coat of primer OVER the paint

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Old 04-03-2011, 05:58 PM   #161
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Thats what we're here for






I thought about that but what if your injured and cant or you're really pissed at binning it and forget for a while.

It would nice to find a automatic solution

In my opinion, you're making too big a deal of it, and adding a part that could cause you issues down the line, be it small and annoying or semi-catastrophic.

I T'd my vents, up above the speedo, then ran the combined leg all the way down the side of left side of the motor, and out under the skid plate and back to the center stand pivot area. No filter, no fuss. I've honestly had my bike upside down, like on the handlebars and taillight only, for over an hour, and I didn't lose a significant amount o fuel. Technically, that's cheating, because once both vents are submersed, no fuel's going to leak out anyway due to a lack of venting, but the fuel you're losing is insignificant. You can keep track of it by looking at any puddles you might leave.

If you run a 1 way valve like that, you'd have less invested in the experiment by just grabbing one of the dinky ones guys use on dirtbikes.

On the other hand, you could plug both vents, and run generic acerbis caps with stubby vent tubes on both. I just advise you to play around and report what you find. If you have any issues with stuttering, or surging, take it easy and pull the vent restriction off, because you're starving your fuel pump.
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Old 04-04-2011, 02:00 AM   #162
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Crappy cell photo.

I was on a thin sandy steep sided single track on my own and fell just before a very steep sandy hill. I had to turn/drag the bike around after this fall to back up a bit to get a decent run-up to the hill. The bike lost very little fuel in all the dragging and sweating.

I agree that adding roll-over valves just makes things complicated. Just have the venting pipes as per XDBX says - T'd at the highest point behind the clocks and then run the pipe down low. That's the way I have mine.

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Old 04-04-2011, 04:15 AM   #163
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Hey Kamanya thanks for taking the trouble to go out and test my theories

OK I'll go with you guys' plumbing sugestion and see how it goes. I've got better things to do than research and build shit that doesnt need fixing.

Cheers
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Old 04-05-2011, 10:46 AM   #164
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Question: A B C D E or F ?



Option A = stock - and I'll be damned if I can figure out how to get that sticker off - which means I'd end up sanding the entire thing and spraying it with black paint - huge pain the arse






Option B = SOLAS tape - like police car tape - white normally - super white under light


without flash:


with flash:






Option C = 4" wide reflective "black" tape
without flash


with flash





Option D = 2" wide reflective "black" tape
without flash


with flash





Option E = 1" wide reflective "black" tape - 2 stripes maybe?
without flash


with flash






Option F: -yellow black striped reflective tape
without flash


with flash


which also happens to match the current stripes on my pelican (which I'll change up to match whatever I decide...)




I'm trying not to be a hypocrite. When we bought Cheryl's black F650 I went and spent a couple hundred bucks on various reflective tapes so I could make her more visible at night. Then I go out and black my bike out so that at night I pretty much disappear

Any opinions?
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Old 04-05-2011, 10:50 AM   #165
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i would go for the yellow-black... as you have it also on the luggage-logo!
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