Ducati FCRs. Yay or Nay?

[M.V.]

Anyone got a definitive yes/no on the spacing? 900SS in particular.

Everything else I can work around, I think... If the spacing is right, it could be economical...

Thanks in advance!

Edit: Also, I've seen Monster carbs that are split with a dual throttle cable... Any good? Would need a TPS, but these can be purchased relatively cheaply???

[M.V.]

I think I've answered my own question, found this on a Duc forum:

Mikuni BDST38 (Standard on Supersport,. Monster)

That part number looks familiar...

[trixynut]

The fcr carbs i got came off a ducati.
Was just a case of changing the connection tubes (spiggotts?) for longer ones to fit the trx head. You can bypass the tps.

[M.V.]

Thanks for the info, if I can pick em cheap, it'll be a go-er!

Hang on, you mean the carb inlet rubbers or something else?

Is the horizontal spacing correct?

[Mincehead]

Spacing, I`m not sure what you mean M.V., the carbs are mounted singly on the Ducati surely?
Edit, it seems `some` are:

http://www.sudco.com/CatalogJPG/064.jpg

I`ve not paid a lot of attention to Ducati carbs over the years, didn`t realise they were fitted in pairs on some models.
I`m guessing that you might need to buy the necessarry spacers, linkages, tubes and such to use a pair of `ex` Duke ones on a TRX, and although it shouldn`t be a problem getting all you need I`ve no idea of the costs involved.
Sudco in America have a pdf / exploded view and parts listing:

http://www.sudco.com/Diagrams323728/expfcr.gif

http://www.sudco.com/CatalogJPG/018.jpg

http://www.sudco.com/CatalogJPG/019.jpg

Dave`s referring to the inlet collars (alloy tubes) that locate in the rubbers on one end and screw into the carb body at the other, I think.
Those alloy collars were too short when I got my FCR`s, the carbs accelerator pump would foul the neck of the oil tank filler before they were fully located in the inlet rubber.
The guy I bought them off assured me they had been on a TRX but I can only assume he had sourced longer inlet rubbers as the stock TRX ones were definately no good for me. I got some extra long inlet collars from Allens and before I fitted my FCR`s turned them down to give the overall length and clearance I needed, matched all the diameters through the inlet fittings too.

[M.V.]

Spacing, I`m not sure what you mean M.V., the carbs are mounted singly on the Ducati surely?

Horizontal spacing, the 900SS & some Monster use the same carb as the TRX (Mikuni BDST38 as above) mounted between the cylinder with eccentric inlets.

Dave`s referring to the inlet collars (alloy tubes) that locate in the rubbers, I think.
Those alloy collars were too short when I got my FCR`s, the carbs accelerator pump would foul the neck of the oil tank filler before they were fully located in the inlet rubber.
The guy I bought them off assured me they had been on a TRX but I can only assume he had sourced longer inlet rubbers as the stock TRX ones were definately no good for me. I got some extra long inlet collars from Allens and before I fitted my FCR`s turned them down to give the overall length and clearance I needed, matched all the diameters through the inlet fittings too.

Ah ok. If I need new inlets it probably not the end of the world... Does that mean that the outlets of the carbs are different or do they come with different spacers?

[Kayla]

They probably won't be that far out though- the bikes are similar sizes and I'd guess that even the jetting won't be a million miles out either

[coxylaad]

http://cgi.ebay.co.uk/Ducati-Keihin-FCR ... 500wt_1156

[Mincehead]

Ahaaa, they`re from Sudco. They`ve also got the Sudco alloy bellmouths fitted to them too, bl*ody good price at the moment, bet they don`t stay at that price though. I see a bloke called Mick in Australia is after them (questions section).
I can tell you now, those alloy inlet stubs are way too short for a TRX fitment.

[M.V.]

http://cgi.ebay.co.uk/Ducati-Keihin-FCR ... 500wt_1156

Yes, thanks, they are the ones I was trying to keep quiet!

I think they will go outside of my budget now though...

[Mincehead]

Hahahaha, good luck Mick, still a good price just now.

[M.V.]

Went for 700 odd US... TRX ones are $799!