Hi, I have just bought a 1995 f650 dual carbs to fit in my ds. I'd like to know if it's the same carbs that the 1997 and if it's hard to fit into the ds. I think Pami do a kit to fit a dual carbs in the ds but I'm not sure if it's that one. Help would be appreciate Thanks

 

OK, so I know that it's the same carbs that the 97, a dual 33 carbs. I paid it 20$, is there something good to do with it ????????Somebody PLEASE

 

did they come with an intake manifold? if not you could get the manifold from a BMW dealer, or from RWR, and they are failry cheap, like around $40 I think.

This has been done in the past, and several guys around the forum have ran and still run dual carbs up to 39mm, maybe some of them will catch wind of this post and chime in....

Not sure if the 33mm is ideal for the DS or what's its characteristics are, but when doing the math the two of them have a combined surface area slightly larger than that of a 45mm so the potential for flow is there. Maybe the big single carbs have evolved more over the past few years on the DS due to simplicity and ease of tuning, but dual 33's is what the raptors come with and the flat slide 33's you have are gonna be better than the vacuum slide 33's on the raptors.
You will most ilkely have to go to a twist throttle with them I'd imagine.
Anyway, hope this helps a little, although no much I'm sure!

 

Let me know what you need.

Get with On Dunes for the intake. I assume the adapters are the same diameter??? Let me know, I can probably get you a measurement.

Send me a PM with your e-mail and I can get you pictures and my phone number.

I run a thumb throttle. Not any worse than the TM45 for stiffness.

Minor cutting of the upper motor mount on the frame is required unless you get some special intake adapters which I can have The Preacher make. But, you will still need to do something for the throttle cable pull. Does your carb come with a bracket for the throttle cable to attach to? One set of my FCR's has this bracket, the other doesn't so, I'm looking to thread the cable through the upper motor mount.

If you use the stock thumb throttle you'll need a little screw pass-through thingy-dingy. Call Gary at TVI and tell him you need the little part for the FCR carb mount for the thumb throttle - I think it is a Motion Pro part (about $8).

When you get the intake boot from On Dunes order the filters too. I think I ordered the OuterWares from Rocky Mt. once I had the filters so I could measure the size of the filters to get the correct Outerwares.

Also, the adapters The Preacher makes are a longer adapter (which is how you can clear the cross-member) They are designed so you can thread in NOs injectors if you want to in the future.

 

Thank you very much guys. The only part that I have it's the carbs that's it. I'm not sure if I will do it, it seams to be a lot of job for maybe not much. What would you think about the HP gain. Thanks again

 

I would think it would be more responsive but, I would like to see what the carbs look like (not downdraft design???)

What I have typed may sound complicated but, it really isn't that much work.

I would think 3-4 HP gain?

Let me know if you don't want the carbs. Maybe we can trade something for them.

 

Thanks, I will look how much would it cost to do it and I will let you know if I'm not going to do it.