r1_manx
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| posted on 5/1/10 at 06:53 PM |
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Throttle body hose - help please
I'm pretty close to running the 2003 R1 engine in my mini and have come to fitting the throttle bodies where I now have a bit of a problem. The
negative pressure hoses were all still attached when I got my engine kit from Malc at yorkshire engines, so they should have all been accounted for
when fitting the throttle bodies to the head. But I have ended up with a stray hose that I am struggling to find a home for and wondered if anyone on
here can help me please. Here are the pics I took tonight along with some annotations...
http://www.flickr.com/photos/r1manx/sets/72157623146282138/
The hose comes out of the throttle bodies at one of the head (outlet is next to the throttle pot) and then tee's into one of the throttle body
pipes in the middle, and it's the remaining end that runs to other side of the head that I can't seem to locate. I would really appreciate
some help on this, it's so close to being a runner and I am itching to get her running!
Cheers
Ben
If im not in action, im in traction!
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matt_gsxr
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| posted on 5/1/10 at 09:35 PM |
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Is that a fast idle air valve in the middle of the shot? I assume you have connected to that.
There are all sorts of hoses. Here are a couple of parts diagrams:
linky
It could go into the AIS system. My guess is that you don't need it so blank it off.
Don't forget to video the first start-up for us all.
Matt
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r1_manx
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| posted on 6/1/10 at 09:29 AM |
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Which shot is showing the fast idle valve sorry? I'm still learning my bike engine bits. I've looked at the pdf diagrams in the service
manual I downloaded and I can't seem to locate the hose I have left over. The individual throttle bodies have the bleed pipes on them and the
stray hose I have connects to 2 of the throttle bodies but tee's off to the side of the head and i'm not sure what it's for. I
don't want to blank it off until know what it's purpose is.
If im not in action, im in traction!
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matt_gsxr
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| posted on 6/1/10 at 02:42 PM |
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I think the aluminium thing in the middle of the shot here
Is the fast idle air control isn't it? When cold it lets air through (to compliment the extra fuel supplied by the injectors) to get the engine
running at higher (more stable) RPM when it is warming up.
It has to let additional air into the engine.
I am not familiar with R1 engines, but there are loads out there who are. If I were you I'd download an R1 service manual.
http://www.mediafire.com/?4amw2k3r2no perhaps
Matt
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afj
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| posted on 6/1/10 at 09:24 PM |
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where that pipe comes from the throttle body nearest to the front of the car should T in to the rest of the bodies all 4 should be linked
eerrrrrrrrrrrrrrrr
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afj
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| posted on 6/1/10 at 09:51 PM |
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1
 
Rescued attachment IMG.jpg
eerrrrrrrrrrrrrrrr
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bassett
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| posted on 6/1/10 at 10:21 PM |
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mattgsxr i think it is the cold start but for water instead as i have mine hooked into my cooling system and i believe it works like a thermostat
opening then closing the cold start cooling.
My MNR Blog Updated Jan 2010 - Track Day Prep Begins!
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matt_gsxr
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| posted on 7/1/10 at 12:50 PM |
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Basset,
Fair enough, I was mostly guessing. How does the R1 get extra air when cold?
Is their a "choke" type cable (a la early gsxr600) or is is driven from the 2nd-ary butterflies (like the gsxr1000). Or does the air
sneek in a different route.
Just interested,
Matt
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