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Old 11-30-2011, 06:03 AM   #6856
laramie LC4
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Joined: Sep 2004
Location: Tucson, Az
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i could easily run 50 MPG with my FCR-39 riding to work and back, on 50/50 tires, and having fun the whole way. out riding, when i was really working the throttle, i still averaged 32-34 MPG. i'll take that any day.

not sure it's gonna get that anymore though......it had some work done.

bored to 43mm (42.5), custom emulsion tube, and all the Cut7 mods. the only problem now is that i have to find an airbox to feed the monster, and an engine to put it on....



stay tuned for more.

laramie
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Old 11-30-2011, 06:23 AM   #6857
meat popsicle
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laramie, the pumper carbs don't require tuned airboxes, so all you need is a filter pod on the stack:







something to keep the dust out, and minimize the chance of sucking in water eh?
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Old 11-30-2011, 04:03 PM   #6858
laramie LC4
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those are all really pretty and would make life SOOOOOOO easy, i wish i could do it. none of those filters you showed could handle the dust and dirt, they were made/designed for the street, or super-moto at worst. after spending thousands of dollars building my engine and having this carb built, the last thing i want to do is suck down a bunch of dust. i wish i could find an easy one, but i haven't. i keep coming back to the foam filter w/ oil, inside an airbox (airbox like) container. right now im thinking 620 sx airbox w/mods, a custom battery (turntech), custom battery/rectifier mount, and stashing all other electronics somewhere? i have an airbox to work with and dimensions of the battery. ithink i can make it work. the question is how well? at worst, i can go back to the stock airbox.

if you got something your hiding, now would be the time to speak....

laramie
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Old 11-30-2011, 04:22 PM   #6859
meat popsicle
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You want FLOW, the least amount of restriction possible - no filter would be best but yes, we ride in the dirt and you need to protect your investment, so an airbox limiting intake to an oiled filter (with pre-filter even) is a very good idea. I'd say fab up whatever fits in the space you have behind (in front of?) the FCR, and then figure out how to let in as much air as possible with as little chance for dust intake.

Oh, you already know this, of course, and you don't want to fab a new airbox in your spare time... so all I can offer is hack up the stock airbox to minimize airflow restrictions. Have you seen Happe's modified LC4 filtered airbox?

http://www.advrider.com/forums/showt...=airbox&page=3
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Old 11-30-2011, 05:35 PM   #6860
laramie LC4
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boy, sure would be nice not to have an airbox though. that would save lot's of room....maybe time to have a direct talk with K&N about their off-road filters and sleeves. everything i've heard, read, and have been told, is they wont work off-road and your crazy for trying. wonder what they have to say about that ???

sure would be nice not to have to worry. guess i will find out tomorrow....

laramie
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Old 11-30-2011, 07:09 PM   #6861
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BMW has always used paper filters FWIW, even on their PD bikes in the Sahara.
Back in the day.

The velocity stack is outrageous, guess you need a reverse megaphone pipe to go with it.

Tune on, turn around, drop out!!!
Supermondo.


bill
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Old 12-02-2011, 05:33 AM   #6862
meat popsicle
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That's real clean-lookin' Bill.

I bet that you just have to service the filter more, and I bet the racers use pre-filters that are swapped at every pit.
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Old 12-02-2011, 02:17 PM   #6863
juames
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Fcr-41

Opened up the new (to me ) carb today to see what was inside. And this is what I found.

Pilot Jet: #45
Pilot Air Jet" #85
Main Jet: #185
OBEKR needle on 3rd(from top) spot
Nice fancy Pilot screw!

JDJ recommended:

Pliot Jet #45
Pilot Air #100
Main Jet #180
Blue needle 4th from top
And a thicker O-ring on the accelerator pump linkage.


JDJ kit worth the $75 bucks?
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Old 12-03-2011, 07:19 PM   #6864
KTM640Dakar
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Old 12-03-2011, 08:13 PM   #6865
Cruiser
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Quote:
Originally Posted by juames View Post
Opened up the new (to me ) carb today to see what was inside. And this is what I found.

Pilot Jet: #45
Pilot Air Jet" #85
Main Jet: #185
OBEKR needle on 3rd(from top) spot
Nice fancy Pilot screw!

JDJ recommended:

Pliot Jet #45
Pilot Air #100
Main Jet #180
Blue needle 4th from top
And a thicker O-ring on the accelerator pump linkage.


JDJ kit worth the $75 bucks?
I did this kit on a 41 for my 625 sxc and it was worth every penny..I also had the adjustable leak jet kit and that is very nice to have.. you can set the acc pump squirt duration with that.. helps a lot with MPG's..
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Old 12-04-2011, 02:53 AM   #6866
Sumi
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Swing arm thread

Hi,

I'm in a process of giving a good cleaning for my bike..
But when I was reassembling the chain guard, I busted the thread in the swingarm (red circle bolt on the picture).. What do you guys think? would it be a good idea, to recut the thread for an M6 bolt, and use that?

Or should I helicoil it? or just use the old bolt with some loctite?

cheers.

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Old 12-04-2011, 05:37 AM   #6867
Reset1
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ya

@ SUMI, you can.. but i found a bolt kit with the M5 bolts and washer..
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Old 12-04-2011, 12:28 PM   #6868
liferider
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Quote:
Originally Posted by GodSilla View Post
Lake Gairdener in South Australia is the venue for Speedweek each year, where Land Speed Records are broken. It is around 50k wide and 170k long, and when in good condition as flat as a billiard table. Unlike Bonneville, it has no ruts, and it is quite smooth off-course too. Once you get around 4km off the end of the course, you are in "dinner-plate" territory, standing on a white dinner plate, covered by a blue dinner plate, with zero references to any landforms (people have died from this disorientation). You can actually see the curvature of the earth.
Here's a picture of my 640 on the salt. Cheers.
GodSilla,
That's quite the feeling I was talking about, great you have had the experience. Your picture has an extra: the cloudy sky gives a rare atmosphere... it looks cool.

Cheers!
.
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Old 12-08-2011, 05:25 AM   #6869
Sumi
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Hi!

Does anybody have some pictures of the CDI & battery area on a 2005 Adventure? especialy how the cables are routed? I forgot to make one before pulling it apart, and now I don't realy remember, how it used to be:))

Thanks!
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Old 12-08-2011, 05:49 AM   #6870
AdventureDave
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airbox

Quote:
Originally Posted by laramie LC4 View Post
those are all really pretty and would make life SOOOOOOO easy, i wish i could do it. none of those filters you showed could handle the dust and dirt, they were made/designed for the street, or super-moto at worst. after spending thousands of dollars building my engine and having this carb built, the last thing i want to do is suck down a bunch of dust. i wish i could find an easy one, but i haven't. i keep coming back to the foam filter w/ oil, inside an airbox (airbox like) container. right now im thinking 620 sx airbox w/mods, a custom battery (turntech), custom battery/rectifier mount, and stashing all other electronics somewhere? i have an airbox to work with and dimensions of the battery. ithink i can make it work. the question is how well? at worst, i can go back to the stock airbox.

if you got something your hiding, now would be the time to speak....

laramie
I have a 2005 625 sxc and I have an earlier airbox and filter and a http://antigravitybatteries.com
inside the airbox.

Its not pretty but it all fits and works. The battery is smaller lighter and more powerful.

check out from post number 7

http://advrider.com/forums/showthread.php?p=16085793#post16085793

Cheers

David
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