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Thread: X-flow on Yamaha R1 carbs

  1. #41
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    Re: X-flow on Yamaha R1 carbs

    use the existing motor bike carbie cable. Fits straight into the splice on the MK 1 accellerator pedal easy as!!

    Filters, go here:-

    http://stores.ebay.com.au/3BBB-Motorcycle-in-AU




    make sure you order the 40mm versions.......
    Last edited by Red Pepper; 12-03-2009 at 23:13.

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    Re: X-flow on Yamaha R1 carbs

    Excellent, How many Dollars to the pound?

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    Re: X-flow on Yamaha R1 carbs

    About 2
    Last edited by Red Pepper; 13-03-2009 at 12:13.

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    Re: X-flow on Yamaha R1 carbs

    Quote Originally Posted by Red Pepper View Post
    Filters, go here:-

    http://stores.ebay.com.au/3BBB-Motorcycle-in-AU




    make sure you order the 40mm versions.......

    Do you mean the 39mm filters or the 42mm filters?
    Which ones fit R1 carbs?

    Thanks for the link

    Jason

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    Re: X-flow on Yamaha R1 carbs

    I'd say the 42 mm, cheap aswell

  7. #46
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    Re: X-flow on Yamaha R1 carbs

    Just a little something Aussie for you to feast your eyes on:-

    The wheels are 16" x 7"

    Unfortunately, twin cams are very hard to come by here so I gotta run with the 1720 Kent
    Maybe I will invest in a 2ltr Zetec sometime in the future.....or maybe....a Cosworth if I could find one







    Hope ya like 'em?

  8. #47
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    Re: X-flow on Yamaha R1 carbs

    Quote Originally Posted by RWD fords rule View Post
    Do you mean the 39mm filters or the 42mm filters?
    Which ones fit R1 carbs?

    Thanks for the link

    Jason
    Sorry, mine are actually the 50mm versions

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    Racer Decade Plus User RWD fords rule's Avatar

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    Re: X-flow on Yamaha R1 carbs

    Quote Originally Posted by Red Pepper View Post

    Are those R1 carbs?
    Do the 50mm ones fit well or would the 46mm ones be a better fit?

    I measured the outside diameter of the R1 carbs where the filters go on and they measure 46mm.

    Thanks

    Jason
    Last edited by RWD fords rule; 13-03-2009 at 12:41.

  10. #49
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    Re: X-flow on Yamaha R1 carbs

    Yes they are Yamaha R1 1000 98/99 carbs, the 50mm ones fit bit I think that 48mm would be best and the smallest that you would want to go.

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    Re: X-flow on Yamaha R1 carbs

    Sorry,...... I uploaded the wrong interior pic, here is the correct one and an overall pic of the engine bay.




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    Re: X-flow on Yamaha R1 carbs

    A few more questions for you.
    What kind of piping did you use for the intake manifold there?
    Any problems with them sucking in when the engine is running?
    Where did you buy it?

    Nice car by the way, nothing wrong with a well tuned xflow.

    Jason

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    Re: X-flow on Yamaha R1 carbs

    Had a mate make it up. Just used some 40mm steel tube amd of course a steel plate to the head.

    The pipe that you see is rubber radiator hose A$15, I wanted the red Turbo hose but A$200...too expensive

    No sucking in here as I was able to push the rubber hose over the steel tube until the carb met the pipe.

    Excellent!!!!

    Thanks for the kind words by the way...I got most of the interior, dash, dash pad, centre console on Ebay from good ole England :-)
    Last edited by Red Pepper; 13-03-2009 at 13:03.

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    Re: X-flow on Yamaha R1 carbs

    Some pics of the manifold





    Fitted to my old engine


  16. #54
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    Re: X-flow on Yamaha R1 carbs

    The motorbike carbs caused quite a stir at Adelaide's "All Ford Day" last Sunday.

    I had fun telling everyone that it was so easy fitting a Yamaha 1000cc motor into and Escort

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    Last edited by RWD fords rule; 14-03-2009 at 12:28.

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    Re: X-flow on Yamaha R1 carbs

    Your welcome !!

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    Re: X-flow on Yamaha R1 carbs

    OK, under extreme throttle up hill she seems to die like she is runnin' outa fuel.........

    Could this be any or all of the following:-
    • Fuel pressure regulator set too low?
    • needle set too low? (the long needle in the slides)
    I have done all the things on the Bogg Bros site and these are the only things I can think of

    Oh and I found some more filters, this time in England

    MOTORBIKE DIRT KART QUAD AIR FILTER Carb 35mm 38mm 45mm
    Last edited by Red Pepper; 22-03-2009 at 09:49.

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    Re: X-flow on Yamaha R1 carbs

    what fuel pump are you running?

    the needles tend to control the mixture at about half throttle as far as i know, once at full throttle it's the mains that control the fuelling.

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    Re: X-flow on Yamaha R1 carbs

    Hi volume mechanical which was fuelling the twin 40mm Dellortos fine

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    Re: X-flow on Yamaha R1 carbs

    Quote Originally Posted by graham bahr View Post
    the thing about that amazes me about running car engines on bike carbs is that they work at all let alone properly (maybe they dont work properly just better than what was fitted before)

    all the modern bike carbs hate modified bike engines and really hate running without their proper origonal air boxes and very few ever run properly again even with loads of jetting, reneedling and springing, i've had enough grief trying to get my bike to run properly on the same type engine just bigger with supposidly the correct jet kit and springs.

    it would be really intersting to see a direct compairson between a engine on both sidedrafts correctly jetting and a set of bike carbs again correctly jetted, my gut feeling is that there will be little difference but i bet it 50 times easier to get the sidedrafts spot on


    .......and how ugly are those manifolds for flow...I thought the STD pinto ones were bad
    Last edited by Roger Miller; 22-03-2009 at 10:36.
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    Re: X-flow on Yamaha R1 carbs

    Quote Originally Posted by RMinOZ View Post


    .......and how ugly are those manifolds for flow...I thought the STD pinto ones were bad
    Runs perfect except when I get to 6500 rpm under extreme load goin' uphill then she wants to die.....I think I will need to allow a little more fuel in, maybe open the mains up a leeeeeeeeeeeeettle further
    Can't get it to do the same on the flat road at 7500 rpm

    may be ugly but they work better then the well set up twin 40's I had on, that's all I can say.

    once I get it right, a nice chrome (inside and out) manifold will follow, this was only a quick test set up.....

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    Racer Decade Plus User DaveWRC's Avatar

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    Re: X-flow on Yamaha R1 carbs

    use a r1 fuel pump, gives perfect fueling

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    Re: X-flow on Yamaha R1 carbs

    Whats going on with the slide speed need more info,how do you know when its too slow or too fast.I race here in the US we use yamaha R-6 on carbs with alkahol/methonol for fuel they are BAD ASS FAST was trying to used R-1 carbs on the R-6 got them to fit just trying to get dialed in.Just stumbled on to the site were you guys were using R-1 carbs I know this is not a bike site but all the info I cant get would be cool,buy the way we dont race bikes the engine is in a small car simular to a sprint car.Thanks Guys
    Jimmy

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    Re: X-flow on Yamaha R1 carbs

    im yet to set up my carbs, but im assuming that i'll know if the slide orifice's are too big if the engine loses vacuum under medium acceleration(compared to high accel on normal carbs) and opposite if the orifice's are too small, which they may be on an r6 motor
    http://img211.imageshack.us/img211/7983/pete4as.jpg

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    Re: X-flow on Yamaha R1 carbs

    In our type of racing theres not much med.acceleration,alot of eather wide open or not,i read somewere that enlarging the slide holes can help acceleration like having an pump squirter,i dont know but i ran the r-1 carbs on my r-6 wouldnt turn over 12,000 rpms
    with the r-6 carbs it turns 16,200 rpms.was using a stock air box on r-1s i think the 2 small holes in the air box too small cut the top out just above the filter will try it again in 2 weeks

  28. #66
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    Re: X-flow on Yamaha R1 carbs

    OK, I am in need of some assistance from you good people in England.

    I need someone to contact Bogg Bros and find out how much one of their Yamaha R1 Bike carb manifolds for a 1600 Kent, will be, posted to Adelaide, South Australia 5000.

    They do not appear to have email??????????

    Thanks for any help you can give

    Shane

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    Re: X-flow on Yamaha R1 carbs

    Got some R1 carbs for mine now.

    Just need to make up a manifold, and I'm about ready to ROCK!

  30. #68
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    Re: X-flow on Yamaha R1 carbs

    Quote Originally Posted by duffbeer View Post
    pics off my x-flow on r1 carbs


    Who made that exhaust manifold?
    I need one like that to adapt for my fiesta, as mine is just to small!! Would save me a fair bit of work too.

  31. #69
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    Re: X-flow on Yamaha R1 carbs

    i had zx9r carbs that i got form robbin hood for 330quid came with it all even the throttle cable and air filter,i used them with a megajolt they worked really well together,also they are so good on fuel,you save a bucket load of cash on that as well as the carbs being cheaper

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    Re: X-flow on Yamaha R1 carbs

    i know its not ford but ive been running yahama R6 carb set up for about 2 years now on my 1.3 mk1 golf (standard about 55 bhp, X flow design)

    yamaha r6 carbs
    135 main jets
    standard idle jets with 2 3/4 turns out on mixture screw
    blocked air corrector
    lowered needles (machined 1mm from tophat)
    1.5mm lowered float levels from standard
    bog bros manifold

    im yet to play with the slide lift holes, but after reading this im defo going to
    the car dives nice up the revs and in the lower gears it pulls quite nicely at lower revs

    but in high gears at low revs it feels rich

    on my LM1 wideband the mixture at 6.5k on full load on flat road in 3rd is 12.5 AFR
    but when driving on part to 1/2 throttle it gets a tad rich at 11.8 AFR

    hope this helps with set ups on x-flows
    and if anyone can give me some pointers on how to get my part throttle richness down that would be fab

    Cheers Ash

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    Re: X-flow on Yamaha R1 carbs

    Hi guys, I'm logging on from Romania, Europe. I'm trying to run a Trabant (bet you don't know what it is :P) with a 1.3 litre vw polo engine with R1 carbs. My mechanical fuel pump was in the way and ive fitted an electric one that delivers 3bar pressure... I have some kind of a filter because my original carb didnt have a separate overflow an the overflow goes from that filter, these carbs dont have either. So with the fuel pump gas goes all over the place, but when I put a bottle with a hose without any pump or anything it runs good untill 3000 rpm, above that range it dies. So the question is if i put a pressure regulator on the electronic pump will it help, and how should i set it??? My gues is 0.1-0.2 bar. Please someone help. Thanks!!!!!
    Last edited by attici89; 17-05-2010 at 14:03.

  34. #72
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    Re: X-flow on Yamaha R1 carbs

    i am sorry, i dont know in bar, but bike carbs run on 3PSI

    and i know what a trabant is, saw then on a UK TV program called "Jeremy Clarkson Meets The Neighbours" from what i gather they have quite a cult following!

    EDIT: found a converter on my ipod, 3psi is 0.2 bar!
    Last edited by Copey; 17-05-2010 at 14:09.

    "if its too loud, you're too old!"

  35. #73
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    Re: X-flow on Yamaha R1 carbs

    Thanks veryveryvery much, you're great!
    This is how it looks like:
    Click image for larger version Name:	s5000964.jpg Views:	10 Size:	394.4 KB ID:	43213
    Click image for larger version Name:	s5000886.jpg Views:	5 Size:	415.6 KB ID:	43214

  36. #74
    Racer Decade Plus User DaveWRC's Avatar

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    Re: X-flow on Yamaha R1 carbs

    I've said all along to get perfect fueling use a R1 fuel pump. Cheap aswell.

  37. #75
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    Re: X-flow on Yamaha R1 carbs

    You're right, I had a friend lend me the pump from his R1 and it ran well, so I've bought one (actually from an R6, but its the same) and it all cheers ever since , thanks for the advice.

  38. #76
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    Re: X-flow on Yamaha R1 carbs

    Hello everyone,
    I know a reply was posted 3 years ago, I'd like to know if at all possible, the following information:
    For Super Six: (I hope you are still around!)

    I read your tuning info for the R6 Keihin carbs. My question for you would be: How big should I drill the main jets for them to be used in a VW 1.8L 8v engine? Any info on this would be greatly appreciated!

    Many thanks, best regards, all the way from Mexico City, Mexico.

  39. #77
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    Re: X-flow on Yamaha R1 carbs

    Quote Originally Posted by pnavarro View Post
    Hello everyone,
    I know a reply was posted 3 years ago, I'd like to know if at all possible, the following information:
    For Super Six: (I hope you are still around!)

    I read your tuning info for the R6 Keihin carbs. My question for you would be: How big should I drill the main jets for them to be used in a VW 1.8L 8v engine? Any info on this would be greatly appreciated!

    Many thanks, best regards, all the way from Mexico City, Mexico.
    I was told around 1.6mm but i'm not totally sure. Make a phone call tot he bogg bross as see if they will let you in on what size they would jet them.

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    Re: X-flow on Yamaha R1 carbs

    well my mrs has run this as her daily drive for 2 and a half years and the carbs have been faultless she has just gone through 3 clutches, 3 driveshafts a gearbox and a pair of wishbones and a complete car!

    [/QUOTE]

    Starter out life as this little 50k mile minter





    finished like this

    Here are some pictures of the trusty steed after the accident.




    and is now up and running in a 4 door s2 shell and the engine is still going strong 3 car in! around 30,000 miles later



    Hands off you pikeys!



    Now has a decent set of wheels on though!!!!!!

  41. #79
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    Re: X-flow on Yamaha R1 carbs

    Quote Originally Posted by freddy686868 View Post
    I was told around 1.6mm but i'm not totally sure. Make a phone call tot he bogg bross as see if they will let you in on what size they would jet them.
    It makes good sense, I myself have a VW 1.8L 8v with a set of R1's, I guess it will just be a matter of using either a a/f meter or looking at the spark plug's color after a few taps of the accelerator...

    Many thanks!

  42. #80
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    Re: X-flow on Yamaha R1 carbs

    I have R1's in my standard 2ltr pinto and the jets are 1.8 so 1.6 for your engine sounds about right. The best and only thing to do is get them set up properly on a dyno (or rolling road as you guys call it).

    People who have issues with bike carbs are 99% because they tuned them themselves or are not using a fuel pump from the same bike the carbs came from.

    Good luck

    Matt

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