Ive been thinking about getting one because it seems like everyone says it will make more power, but all the bikes ive ridden that have them, like the KTMs and Hondas, just dont seem like they have the response that my berg does. Maybe its the bike and not the carb?
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And which to get? I remember a DR-Brad posting something about being able to get them in the archives, but have not seen him on here lately???
Also, for the bigger bergs the CRF carb may work, but which year is the best to get?
Either way I think the price is $400+ for the conversion.
Also, for the bigger bergs the CRF carb may work, but which year is the best to get?
Either way I think the price is $400+ for the conversion.
Sudco has them now.
http://www.sudco.com/keihin.html#FCRMX
41mm with hotstart and ACV retails for $566 8O
http://www.sudco.com/keihin.html#FCRMX
41mm with hotstart and ACV retails for $566 8O
I fitted a FCR39 off a WR400. Pics and jetting specs here:
Link to Gallery
Worth the effort, more mid range torque, more responsive and hangs on better - easier and therefore quicker to ride. Do it. Incidentally, I spent a fair bit of time playing with the Dellorto, as a result, top end isn't much, if any different, nor is starting. 1-2, occasionally 3 kicks when hot. I'm still working on cold starts.
Steve
[EDIT]shortened link[/EDIT]
Link to Gallery
Worth the effort, more mid range torque, more responsive and hangs on better - easier and therefore quicker to ride. Do it. Incidentally, I spent a fair bit of time playing with the Dellorto, as a result, top end isn't much, if any different, nor is starting. 1-2, occasionally 3 kicks when hot. I'm still working on cold starts.
Steve
[EDIT]shortened link[/EDIT]
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dave186 said:
It indeed makes bikes start better and not choke so to speak, however like results can be achieved with a properly tuned dellorto and it is tons cheaper Ask lineaweaver!
The honda like characteristics are simply refered to reguarding starting ease, The power delivery and throttle response will only get better.
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the dell orto makes the bike vibrate like hell compared to the keihin. i did over 30 mods to my dell orto carb and even first time out the keihin was better. i've got the jetting dialed right in on the keihin now.
so much so that the factory settings are the same as mine bar the MJ/MAJ on mine. i am trying a very large choke jet soon in order to clear up the starting issues i hope-for good.
one thing to remember is that although you might get a used WR carb etc you will need the following which all add to the price;
yamaha fuel pipe (and clips ) i don't use clips at all.
a 2 into 1 union on the carb (i have a spare one for sale)
another inlet rubber so that you're happy to cut it up/about
KTM 400/450 throttle cables
KTM 400/450 throttle housing
fresh grips
many new jets and needles through both keihin dealer (sudco/allins) or through yamaha
block off the TPS
new belmouth spigot to suit the larger inlet 'sock' of the husey than the yam
all this adds up.
worth it? for a better bike but probably financially-no.
the MK 1 carb will need 'de-octopussing' and the 'Taff Mod' and the MK2 needs the 'BK mod'.
Taffy
so much so that the factory settings are the same as mine bar the MJ/MAJ on mine. i am trying a very large choke jet soon in order to clear up the starting issues i hope-for good.
one thing to remember is that although you might get a used WR carb etc you will need the following which all add to the price;
yamaha fuel pipe (and clips ) i don't use clips at all.
a 2 into 1 union on the carb (i have a spare one for sale)
another inlet rubber so that you're happy to cut it up/about
KTM 400/450 throttle cables
KTM 400/450 throttle housing
fresh grips
many new jets and needles through both keihin dealer (sudco/allins) or through yamaha
block off the TPS
new belmouth spigot to suit the larger inlet 'sock' of the husey than the yam
all this adds up.
worth it? for a better bike but probably financially-no.
the MK 1 carb will need 'de-octopussing' and the 'Taff Mod' and the MK2 needs the 'BK mod'.
Taffy
Power,
The best thing about fitting a FCR39 is the instant throttle response.
You CAN get out of it cheap if you use some nouse?
I got my FCR39 MK1 from E/bay in the US for $180 Aust delivered, not bad ahh? You will need the throttle assy and cables from the KTM 450, cant remember how much they were. I used normal fuel line, and a stainless steel T'peice I was given and they connect on the exhaust side no problem. I also made my own flanges from nylon on fuel and air side of the FCR. etc etc.
Just keep your eye on Ebay and see how much you can save? I have also just bought a starter motor(mine has **** itself) from a CBR600 (same spline) for $50 Aust?? and I will modify it to suit my Berg.
The best thing about fitting a FCR39 is the instant throttle response.
You CAN get out of it cheap if you use some nouse?
I got my FCR39 MK1 from E/bay in the US for $180 Aust delivered, not bad ahh? You will need the throttle assy and cables from the KTM 450, cant remember how much they were. I used normal fuel line, and a stainless steel T'peice I was given and they connect on the exhaust side no problem. I also made my own flanges from nylon on fuel and air side of the FCR. etc etc.
Just keep your eye on Ebay and see how much you can save? I have also just bought a starter motor(mine has **** itself) from a CBR600 (same spline) for $50 Aust?? and I will modify it to suit my Berg.
dave
Dave, there are a pair of FCR39 Keihin carbs on Ebay as we speak!!
$450 US for the pair?? Item no: 790091802
Or type in keihin and search that and they are on bottom of the first page. Perhaps you could go halves with someone else here?
Dave, there are a pair of FCR39 Keihin carbs on Ebay as we speak!!
$450 US for the pair?? Item no: 790091802
Or type in keihin and search that and they are on bottom of the first page. Perhaps you could go halves with someone else here?
dave186 said:
Hi,
I have a FCR 41 on my 00` Berg 600 and it makes a night and day difference to the ******** dell`orto when i comes to throttle response, smoothness and rideability!!! This is definetly the best motor mod you can make, if you want to run with the Hondas and Yamahas on the track!!!!...worth every penny with no alternative!!!!!!!
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it's funny, but i haven't found a soul who has tried a single digit of the settings i continuely offer up as free advice. yet we always hear how marvellous the dell ortos are or someone says how they got it done-not just present company-and yet i haven't heard of one single setting, one single number being offered up here. FREE. once.
there are loads of sussie specialists yet not a single setting gets offered outside of dwight rudder (i believe i'm still the only person to openly admit to thoroughly enjoying his company on here).
it's about time people who purport to give-GAVE!!!!!!!
Taffy
there are loads of sussie specialists yet not a single setting gets offered outside of dwight rudder (i believe i'm still the only person to openly admit to thoroughly enjoying his company on here).
it's about time people who purport to give-GAVE!!!!!!!
Taffy
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Taffy said:
Hi Taffy,
$150.00 plus parts to modify a PHM 40 (501 / 600). Said carburetor and modification requires individual attention via a flow bench in order to properly calibrate.
Regarding other displacements:
I require the complete motorcycle.
In addition I provide a 41.5mm PHM service, custom build 39.5mm Mikuni kits and provide Keihin FCR tuning. (Complete bikes are required as the final state of tune is completely dependent upon the total package)
Sincerely,
Dale
Ps
Often is the case regarding larger displacement engines that the PHM 40 when properly tuned will provide for a more linear (ie user friendly) delivery of power than that of the FCR with little if any sacrafice in peaK power.
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dale
my comment is bound to get me flamed but it is however how i feel. i've been here over two years and the statement i made i hold too.
first of all i don't blame any dealer who has need to keep the info secret from keeping it just that-secret. i think you run a fine line and you run it well and before you 'quote' me yet again (something i personally can't stand as you make everything seem like it's out of an edition of "law & order") i didn't aim my comment at you oddly enough.
this site has plenty of clever engineers, who save money via this site and don't offer a crumb of info back. every answer is beautifully vague. if i spent a few quid on a dyno i'd let people know my results as long as somewhere along the line at UHE i thought i was getting back via others just what i'd put in.
if you feel you answered my point specifically i can only say you confirmed my thoughts completely. first of all $150 isn't cheap (now who said it was i hear you say!!!!!!) and secondly it's vague.
as said though i don't expect free valuable knowledge from a dealer. someone who crunches numbers is being helpful and not passing money and time saving info.
this site is sadly short of people passing out the real stuff.
Taffy
my comment is bound to get me flamed but it is however how i feel. i've been here over two years and the statement i made i hold too.
first of all i don't blame any dealer who has need to keep the info secret from keeping it just that-secret. i think you run a fine line and you run it well and before you 'quote' me yet again (something i personally can't stand as you make everything seem like it's out of an edition of "law & order") i didn't aim my comment at you oddly enough.
this site has plenty of clever engineers, who save money via this site and don't offer a crumb of info back. every answer is beautifully vague. if i spent a few quid on a dyno i'd let people know my results as long as somewhere along the line at UHE i thought i was getting back via others just what i'd put in.
if you feel you answered my point specifically i can only say you confirmed my thoughts completely. first of all $150 isn't cheap (now who said it was i hear you say!!!!!!) and secondly it's vague.
as said though i don't expect free valuable knowledge from a dealer. someone who crunches numbers is being helpful and not passing money and time saving info.
this site is sadly short of people passing out the real stuff.
Taffy
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Hi Taffy,
I did not take your post personal.
As for a quotation:
Many do not read an entire thread. Including a quote is a simple means of preventing an answer from being taken out of context.
Regarding "free" information:
Is improper information considered good simply because it is free?
The majority of what I personally offer regarding fuel delivery tuning is end user specific. Over the years I have found most "generic" carburetor settings to be mediocre at best.
Motorcycle tuning in particularly that regarding fuel delivery is as much an art form as it is a science. One must use all of his / hers trained senses in order to fine tune a performance engine for a particular objective. The internet is lacking in said respect. Perhaps virtual reality engine tuning is in order.
Now, pleeeeeze stop whining as you are giving me a headache.
Yours Truly,
Dale
Ps
In my humble opinion mail order carburetor tuning is akin to that of mail order brain surgery.
I did not take your post personal.
As for a quotation:
Many do not read an entire thread. Including a quote is a simple means of preventing an answer from being taken out of context.
Regarding "free" information:
Is improper information considered good simply because it is free?
The majority of what I personally offer regarding fuel delivery tuning is end user specific. Over the years I have found most "generic" carburetor settings to be mediocre at best.
Motorcycle tuning in particularly that regarding fuel delivery is as much an art form as it is a science. One must use all of his / hers trained senses in order to fine tune a performance engine for a particular objective. The internet is lacking in said respect. Perhaps virtual reality engine tuning is in order.
Now, pleeeeeze stop whining as you are giving me a headache.
Yours Truly,
Dale
Ps
In my humble opinion mail order carburetor tuning is akin to that of mail order brain surgery.
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useless info is especially undesirable. pointing it out is a delicate operation. but people need to make a start somewhere. it's difficult explaining one point without giving out your life story.
but it's better to throw your cards on the table. this is an owners forum. we should remain open and honest. say it how it is.
does my bum look big in this?
Taffy
but it's better to throw your cards on the table. this is an owners forum. we should remain open and honest. say it how it is.
does my bum look big in this?
Taffy
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Taffy said:
Yes it does. Huge in fact.
Disclaimer:
Quotation for entertainment purposes only.
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