Triumphrat

Kframe

I was talking to a guy and he said he knows about a set of CR 35s off some other bike (obviously an inline four) for sale for like $400 or so.

Could this rack of four be split in half (or take off carbs 1 & 4 and use 2 & 3)?

If this is doable, might be a cheap way for one or two Bonne owners to get in cheap.

Thoughts?
-Kris

Kframe

Or for that matter, could you split up some FCR 39's?

ebay


Are all CR 35's and FCR 39's the same, or are there different ones for each bike?

Worth it, or more trouble than gain for the avg joe?
-K

sweatmachine

more work than it's worth.

__________________
"If you will it Dude, it is no dream"

904cc Custom Bonnie Cafe Fighter!

Kframe

It would seem it would be a matter of changing or fab'ing the spacers and things that link the carbs, including the actual throttle linkage.

But how cheap would a set of 4 FCR's have to be before it would be worth it, considering the FCR pair for the Bonne is $949 or so?

And this would be me doing the work myself, not paying some shop rate for someone else to rig it.

Plus, the other two FCR's out of a pair of 4 could be resold on ebay, recouping at least some of the orginal $600, so now we're maybe talking FCR's for $400 plus a lot of labor? Still might be worth it?

Or really, just no?
-K

dledinger

I'll tell you this much....you've got my gears turning.

If you're willing to do the work....I can't see how you could lose.

Kframe

Now that's what I'm talking about, a little encouragement.
I mean, if FCR 39s are the same carb whether in a pair for our Bonnies or in a rack for an i4, then the only problem is the spacing and the throttle linkage.
That might be a big deal, but if it's do-able, then you know, it might be worth it to me.

The sense of accomplishment adapting one thing to work on another is pretty nice.

Thanks, -K

Kirkus51

I would have to say a carb is a carb and if they're 39 racers, I can't really think that Kehein makes just one version exclusively for Bonnies. I think it's just the linkage you'd be worried about and spacing and engine pie holes... Uh who'd be the 2 pioneers out there to do such things. or the one guy that would buy the four and make 2 sets and sell the other to another guy after he's done the hard part.:

Bottle_Fed

Like Jeff said "it's more work than it's worth" I've helped Bill Gately, at Bonneville Performance, assemble 2 sets of the Mikuni HSR's and there is a reason those kits cost so much. To assemble 1 kit it took us roughly 4 hours, and that's with all of the parts/linkages available. What a pain....

Greg

__________________
2001 Black Bonneville 1200cc "High Tuned Son-of-a-Bitch!"
(formerly known as bonnieblackinfl)

Bored, Stroked, and Injected!
Life always gets better after a few gears and a shot of nitrous....

Kframe

Okay, I may be stubborn, but 4 hours doesn't seem like a lot of time in the scheme of things, especially if I could save a few hundred dollars.
Plus, the rack of 4 would have all the linkages, the trick would be disconnecting 2 of the carbs and then working on the spacing.
Unless I'm hugely mistaken, the spacers could either be added to, or cut down with a dremel, and none of that should effect the geometry of the throttle linkage assembly.

I'm still tempted.... But without having the set of 4 in one hand and a pair in the other to compare things, it is a gamble!
-K

Beachfinn

It's doable, You'd have to use 1 and 4 since TPS is at the end. This renders very likely 2 and 3 useless (no TPS mount). You would have to build new connecting pieces, since youo are changing the spacing. Then you would have to make new linkage to connect the carbs, with balancing screw. Other thing to manufacture would be the idle adjustment. Naturally you would have to also change all the guts on both carbs.
Lots of work to end up with 2 carbs. To use $60 throttle bodies instead and build your own fuel squirter,,,,,,Priceless