FCR advice from wise men please.

[A Yerbury]

Stuart origional gangster, pugi and zimbob...Hello dears. Do you happen to have an online resource for fcr fittings to hand? I'm thinking more blue peter than blueprints for nasa -if you get my drift? also a uk distributer should I need a spring or rubber boot (inevitable)

many thanks.
Alex.

ps.Allah Akhbar..:hail:

[manc skank]

hey al,

here you go dude, uk supplier, prices are not too bad for parts, friendly enough guys.

http://www.allensperformance.co.uk

ned flanders has some advice:

http://www.ducatisuite.com/keihins.html


when i had bliksem dyno'd the dude who was doing it whipped the carbs off and put them back on with the greatest of ease, and there was an airbox in the way, sommer slap 'em on en ry boet. maybe get them dyno'd soonish though...i miss my bike :cry:

hmm...you gonna get some head work done at some point? just musing, but if you have a free flowing exhaust and throaty carbs perhaps on a 600 the head might start to become a bottleneck? might wanna shoot Chris Kelley an email? laters, rick.

[Zimbo]

I got instructions with mine, which I passed on to Crust as he was getting ready to install his ebay purchase. He's probably still got them and I'm sure will make a copy for you?

[A Yerbury]

thank you chaps, I had seen both of those and have received an email from Ca cycles, thankfully the airbox is no longer there. Where did you attach the idle out of idle curiosity? the local fellow I go to is very good with his dyno, I will probably get him to put it on the rolling road and do the valves at the same time. as regards head work a larger engine is more economical..I missed one the other week on ebay. I plan to ride this one untill it explodes I think. There seem to be a few places to attach the cable ends at the carb end? I presume this is for the various applications they do? see pictures....and thanks again.

A.

[manc skank]

i zip tied the idle to the inside of the frame with just the dial sticking out, i though teh different cable mounting points were to take up the slack after mounting the cables, have fun routing the cables! swore at mine for a year, twas the nice gentlemen at rosse corse who got it right in the end!

[A Yerbury]

In fact could someone show me a quick picture before it all happens back to front? perhaps when Pugil sticks wakes up as he has your bike ? yes... you lot..don't muck about reading this just go and take a picture! now please.

bless your ancestors etc.

A.x

[Pugi]

...and will bring you a photo of zip tied cable any minute now since you ask so nicely.

[A Yerbury]

...and will bring you a photo of zip tied cable any minute now since you ask so nicely.
thanks dear chap, and any other round the back shots (steady..) showing the fuel connection and front cable routes.. you are too kind!

[Pugi]

Idle cable easily photographed. The rest is tight, dark and it's full of cables, pipes and leprechauns. Took some pictures from different angles, of which hopefully 1 or 2 will be helpful.
However they are too big to be posted so please give me your e-mail since I can't be bothered cropping things this early in the day.

[stuartg]

Alex
Sorry mate, must of missed this post. You sorted now? Let me know. If I can help I will

Stu

[A Yerbury]

Alex
Sorry mate, must of missed this post. You sorted now? Let me know. If I can help I will

Stu

about time too Mrs! particularly after your initial concerns.....! Got it started, currently with old farmer giles for dyno, jetting tweaks and valve shims. Job done etc..

[Zimbo]

I take it that's the Dynojet Centre in Ledbury Alex? I'd be interested to know how you get on, our 600 race bike needs shims doing, rejetting and Dyno and I'm currently undecided on where to take it. I know he's got a good reputation with the dyno, it's more the shims side I was concerned with, usually stick to Ducati specialists. Got a contact name / number, and does he charge a lot??

[A Yerbury]

I take it that's the Dynojet Centre in Ledbury Alex? I'd be interested to know how you get on, our 600 race bike needs shims doing, rejetting and Dyno and I'm currently undecided on where to take it. I know he's got a good reputation with the dyno, it's more the shims side I was concerned with, usually stick to Ducati specialists. Got a contact name / number, and does he charge a lot??

he dyno'd my bike a while back, I always get good service from Lee, both he and Jason -despite sounding like farmers- do know their rolling roads. I'll keep you posted. Quite endearing is that he has harleys, dukes, tricked up busas, spondoon things the lot? thus they have non of that "oooh ducati!? oh no I think that needs a special tool" nonsense. I will give him a bell tomorrow as it has been in since AM thursday.

[antonioshabirto]

im looking for a keihin 39mm FCR ..... anyone selling ????

[Fosse Foxfight]

im looking for a keihin 39mm FCR ..... anyone selling ????
An M400 eh?...Keihins?....you dont even really need a carb on there, just a squeezy bottle dripping petrol should do it and save you some money

hope this helps.

ta ra

[spacemonkey]

Just out of idle curiousity, what sort of gains can be had with Keihins on a 93 900? Currently running Mr Yerbs charity case Remus Grand Prix cans and stage 2 K&N open setup all dynod up etc etc. Big improvements? I hear they have no choke just an accelerator pump. Is this really a problem and all that?


I would think it would be an interesting thing to do one day soon, Insh-Allah :hail: and all that. How much are they too?

[Fosse Foxfight]

Just out of idle curiousity, what sort of gains can be had with Keihins on a 93 900? Currently running Mr Yerbs charity case Remus Grand Prix cans and stage 2 K&N open setup all dynod up etc etc. Big improvements? I hear they have no choke just an accelerator pump. Is this really a problem and all that?


I would think it would be an interesting thing to do one day soon, Insh-Allah :hail: and all that. How much are they too?
Worlds apart, well OK, a vast improvement, changes the characteristics of the bike. The CV carbs that are fitted as standard, are affecetd greatly by atmospheric conditions and are "reactive" in nature, inasmuch as they respond to throttle changes by "detecting" a change in airflow, by virtue of usually a butterfly valve allowing a greater ingress of air, thus affecting the pressure difference across the diaphragm and actuating the needle and slide combination. Carbs like the Keihin FCR and its Italian colleague the Dell Orto PHF/PHB are operated dierctly by the cable, where the throttle cable actuates the slide and needle and fast/crisp throttle response is the result. In addition both of these carbs provide a "pump" feature which when actuated quickly squirts petrol in from a supplementary jet, supplementary that is to the main jet through which all things usually go, this "pumped" petrol is then directed straight thru the veturi into the cylinder and does not lag like the CV carbs. Users of the FCRs and PHFs etc often report better fuel consumption but this is only the case when ridden smoothly. If youre using you're wrist like you should you'll get equivalent or slightly worse fuel comsumption, but have a lot more fun.

ta ra

[spacemonkey]

Are they a liability on bumpy roads? Mine can suddenly catapult me forward, or back, when I hit a bump as the bike forces a jolt through to my wrist.

[A Yerbury]

Just out of idle curiousity, what sort of gains can be had with Keihins on a 93 900? Currently running Mr Yerbs charity case Remus Grand Prix cans and stage 2 K&N open setup all dynod up etc etc. Big improvements? I hear they have no choke just an accelerator pump. Is this really a problem and all that?


I would think it would be an interesting thing to do one day soon, Insh-Allah :hail: and all that. How much are they too?


I got 3bhp more or less everywhere, zimbo will know about the 900 and I belive California cycle works has a good breakdown of benefits plus plenty of quiant American testimonials "These totally rock ,my world dude.." ahem, the accelerator pump is easier than the choke and I was really struggling with the cold weather and the mikunis. I got mine for a bit of a bargain but they seem to go on ebay for about 450-550. I think new from the states with the exchange rate they are about 700? again I think Zim purchased his from new.
Get some "they toattaly kick ass dude" errr they are rather splendid.

http://www.ducatitech.com/2v/fcr_faq.html


A.x

[manc skank]

errr.....Al, you forgot to mention the glorious gulping intake roar :yoparty: almost worth it for that alone.

[Fosse Foxfight]

errr.....Al, you forgot to mention the glorious gulping intake roar :yoparty: almost worth it for that alone.
Sadly after a while you just dont notice it anymore....oooops bonfire pissing again:p

[Zimbo]

I'm having my '95 M900 on the dyno tomorrow, Kehin FCR41s, open airbox / K&N, low level Leo Vince cans. I'll report back once it's done!

More info on my initial impressions plus fitting etc here

http://www.ukmonster.co.uk/monster/showthread.php?t=13195

[Fosse Foxfight]

I'm having my '95 M900 on the dyno tomorrow, Kehin FCR41s, open airbox / K&N, low level Leo Vince cans. I'll report back once it's done!

More info on my initial impressions plus fitting etc here

http://www.ukmonster.co.uk/monster/showthread.php?t=13195
OK, lets have some fun....SWEEPSTAKE!!!!

I reckon Zim, you'll see, errrrr, 82+/- 2....

Next!!

[bod]

You wil need a before and after to be truly sure of any improvements,my dealings with dyno's show quite large variations between different places.

[Zimbo]

This particular dyno is a brand new one and is fairly accurate.
I'm expecting around 74 bhp, will report back . . .

[Fosse Foxfight]

This particular dyno is a brand new one and is fairly accurate.
I'm expecting around 74 bhp, will report back . . .
74? why so low? Thought standard was around 75?

[spacemonkey]

Yeah, mine's already about 74 at the wheel. Thought your's would be better?

[antonioshabirto]

An M400 eh?...Keihins?....you dont even really need a carb on there, just a squeezy bottle dripping petrol should do it and save you some money

hope this helps.

ta ra

Im riding a M600 now ... bore to 680cc

[Zimbo]

Well, am pleasantly surprised. The bike's running a fair bit lean, so I've ordered new main jets (160, currently running 155 jets) and will dyno it again afterwards, but at present it's putting out 84.5 bhp and 65 ft-lbs of torque. Looks like the Kehins add the best part of 10 bhp :) once the new jets are in I'll get the chart printed off and post it up.

[Fosse Foxfight]

Well, am pleasantly surprised. The bike's running a fair bit lean, so I've ordered new main jets (160, currently running 155 jets) and will dyno it again afterwards, but at present it's putting out 84.5 bhp and 65 ft-lbs of torque. Looks like the Kehins add the best part of 10 bhp :) once the new jets are in I'll get the chart printed off and post it up.
Told ya Zimbo!! The jest will change it little as the chances are its running nicely now but the bigger jets will add that little extra gas to keep it cooler. What year is your bike btw? Definitely got the best cylinder heads on? Not the 750 ones?

ta ra

[Zimbo]

It does indeed have the better cylinder heads with the big valves and power cams, '95 model (the change to 750 valves and cams came in late '96).

Dyno chart up as soon as I have it, it's interesting 'cos I've searched for ages on google etc for a M900 dyno chart with FCR41s fitted, it's a popular mod but I've never found one!

[Fosse Foxfight]

It does indeed have the better cylinder heads with the big valves and power cams, '95 model (the change to 750 valves and cams came in late '96).

Dyno chart up as soon as I have it, it's interesting 'cos I've searched for ages on google etc for a M900 dyno chart with FCR41s fitted, it's a popular mod but I've never found one!
Reckon if you clean n polish n reseat the valves, gas flow the head and then maybe up the balance on the crank yuo'll hit 90. Did you already put the light flywheel on?

Sean

[A Yerbury]

It does indeed have the better cylinder heads with the big valves and power cams, '95 model (the change to 750 valves and cams came in late '96).

Dyno chart up as soon as I have it, it's interesting 'cos I've searched for ages on google etc for a M900 dyno chart with FCR41s fitted, it's a popular mod but I've never found one!


moi aussi, found nowt? I think you should upload a dyno keihin page zimbo just for the people? but 10bhp is rather nice I imagine it tidys up a 900 quite nicely too making it less hard work? oh I cant wait to find a cheap 900 ngine..btw I have heard about the better cylinder head thing before? what was that about? exactly? in latin? with illustrations? cheers.
A

[Zimbo]

The light flywheel is indeed in, that won't affect power output but does give it a little more "go" in the lower gears at least. My next mod, when funds allow, would be 11.1:1 high compression pistons, which should be good for a few extra horsepower, and would probably reseal the valves at the same time. Got to earn some money first though, other priorities at the moment etc . . .

[A Yerbury]

The light flywheel is indeed in, that won't affect power output but does give it a little more "go" in the lower gears at least. My next mod, when funds allow, would be 11.1:1 high compression pistons, which should be good for a few extra horsepower, and would probably reseal the valves at the same time. Got to earn some money first though, other priorities at the moment etc . . .

I think I did find a dyno print for them though?! apologies for not getting the lee's dyno. I will do it tomorrow....my feet have barely touched thye ground since 8 am (no I do not fly)

A.

[Zimbo]

I have heard about the better cylinder head thing before? what was that about? exactly? in latin? with illustrations? cheers.
A

Copied from another post I made recently, cos I'm too lazy to retype it!

The earlier (big valve) engine was used in all 91 to 97 900 SS and SL bikes. These engines were also used in 900 Monster up to engine number 037727 ( late 1996 build ) and the 98/99 900 Monster Special.

The later carb engine came in 900 Monster from engine number 037728 and the Cagiva Elefant series. The differences are camshafts and valves. The valves are a couple of mm smaller. The cams are about the same duration, but lower lift than the previous 900 cams, with different timing, much wider lobe separation and less overlap.

Basically, the later monster 900 engine doesn't breathe as well, due to having smaller valves which open less. The effect is minimal in standard trim, indeed Ducati claim a slightly better midrange, but if you tune them up the power available is reduced.

[A Yerbury]

I heard that the power went up fro 71 to 74 in 1999? not doubt internet web misinformation...

[spacemonkey]

Thankyou peeps. Thanks to all this Keihin talk I have spent the whole night reading various sites all about them. Guess that's more stuff to add to the list then....