Keihin FCRs Vs Mikuni CV carbs

[koko64]

Yup, easy to get religious over FCR`s, they are baaad.

But you forgot one thing, koko, the lovely NOISE !!!
At least w pods, the chirping like a bird nest at small openings, a promise what is at your disposal w a simple flick of the wrist.
And, the ROAR of a horny fullgrown bull at WOT!

Amen to the roar of a horny bull

[ducpainter]

I have a policy.

I don't try anything I can't afford...it cuts down on frustration.

[koko64]

I have a policy.

I don't try anything I can't afford...it cuts down on frustration.

That's a good policy.
Frustrating. Like a girlfriend who's a celibate lingerie model.

I once found a crashed '93 900SS at the yard auctions. It was straight, motor good, etc. It only had fairing damage. It had FCRs on it. I wanted to buy it, take the carbs and adjustable suspension and sell it on at a profit. I couldn't afford it. It went for 2500-00. The motor was worth at least that much from a wrecking yard.

I don't go to the auctions anymore.

[Drunken Monkey]

I have a policy.

I don't try anything I can't afford...it cuts down on frustration.

You give me this advice after I get a ride on a Streetfighter S.

As for the stock carb on a Duke II... I dunno. Some 38mm CV thingamabob.

[Howley]

One day when i'm rich I'll buy FCR's, I've been lusting after them for soooo long.

[671M900]

You give me this advice after I get a ride on a Streetfighter S.

As for the stock carb on a Duke II... I dunno. Some 38mm CV thingamabob.

Oh yes... I'm in the same boat, damn Streetfighter...

I have FCR's on the 900, never had the Mikuni's on it. The FCR's are perfect, and the bike has a great character to it. I thought that's how monsters were supposed to be until I rode a stock 900ss with mikunis. I realize they are different frames and bikes, but powerwise, the FCR's are more fun, it's like a big ol' dirtbike.

[showerfan]

KOKO! did you ever try the pods? verdict?

[koko64]

Yeah I did.
Pods(ru1750) > too loud and least performance when tested on FCRs when tested against various airbox permutations. Great weight loss, easy servicing and possible extra airflow to rear cylinder.
See "pods Vs open airbox" on search.

[carbmon]

Cool resurrected thread, loved reading your epiphany, Koko.

FCR’s are the bomb when it comes to motorcycle carbs.

IMHO, all who own them should read and re-read this great guide by Patrick Burns which helps demystify them greatly.

[showerfan]

yeah, +1 -- the prose from the Aussie was moving. and hillarious

[koko64]

Cool resurrected thread, loved reading your epiphany, Koko.

FCR’s are the bomb when it comes to motorcycle carbs.

IMHO, all who own them should read and re-read this great guide by Patrick Burns which helps demystify them greatly.

Burns' tuning guide is something I regularly consult.  I've even bothered him a few times from over here. He has been generous with his knowledge for sure. He should write a book, I'd buy it.

[koko64]

I have a policy.

I don't try anything I can't afford...it cuts down on frustration.

DP got some FCR41s.
Nate, how did you find them?

EDIT:
He has them on his winter jobs list.

[koko64]

KOKO! did you ever try the pods? verdict?

Showerfan
I honestly would consider extending the airbox on a 900 and running shortened, "ported" velocity stacks. See the thread for this, "Enlarged Airbox and other Airbox mods". The most benefit would probably be with porting, big carbs and higher comp. I did not test these mods on a stock 900 motor. I hope to sometime, but I don't work on many Ducatis. I don't know if it is worth doing if your bike has W heads.
I must be getting old, but I found the pods too loud and brash sounding. It really annoyed the shit out of me. The clincher for me was the slightly reduced performance. Every hp is precious when you have so few .

[showerfan]

will definitely take that into consideration, though i'm not sure i know enough about this to do it myself. i have ordered the ``flat slides'' as my mechanic says. i am SO STOKED for a touch more drive-ability on this old bike -- it sometimes likes to JUMP when i crank the throttle, sometimes not so much...

[PhilB]

I'm interested in the comments about cold weather.  My original carbs wore out a couple years ago, so I had the choice.  I was worried about the lack of an enrichener, and stories that bikes with the FCRs can be harder to start, especially in cold weather, so I got a used set of the OEM carbs.  They seem to do alright in the cold, once I beefed up the starter system.

Are the FCRs actually good in cold weather?

PhilB