I have found a 32mm Dell'Orto carb off a MotoGuzzi on Italian eBay, and given I do understand how those work, but know zero on how a Keihin works, I was wondering if it could be compatible...  ???

I believe the standard carb is a 40mm, but is that the diameter of the butterfly valve (throttle) or the diameter of the intake ? If the latter is the case, then the butterfly valve _could_ be smaller, maybe 38, 36... so a well tuned 32 _might_ do the job...  
or am I just barking up the wrong tree  

Maurizio from Italy

mpescatori wrote on 12/31/69 at 16:00:09:


did you read the first post, " read this before posting"?,

you will get more responses if you would have posted it in the rubber side down section.  

this section is for technical documents and tips and tricks not questions like you posed, that is why you havent recieved the responses.   generally we are a very helpfull group. but don't always come to this section unless we need something.    

also using the search feature you can find out about any topic that has been previously discussed.  just set the default back further than 7 days.  


welcome, i hope this clears things up for you

sluggo

Right... hmmm... we need a thinking smiley here...
anyway, I had been made aware of the RSD issue and bow my head in shame (the one with two ears, leave the 4 valves alone)
Now, that last comment makes me think, maybe if I get two 22-24mm carbs, a "Y" intake manifold, and set them up so one opens first, then the other, like a double barrel (no double barrels that small I'm afraid) maybe I could actually make it go faster AND use less gas at low revs?
??? ??? ???

Maurizio
Now, that 24/36 Dell'Orto I saw somewhere...

I had posted a response when you first put your question up, but somewhere along the line it was dropped.
I have to agree that for the Savage you need a 36-38 mm carb to provide the flow needed.  It would work with a 32-34 but the top end would be severly limited.  I have not personally used a Dellorto before but have heard good things about them.  If you are going to make the change, make it a good change.  If you put a small carb on you will gain nothing.
I had thought about the dual carb setup before, but the time and expense would be too much...especially with the very mild state of tune of the stock Savage engine.  If you were to build a race ready engine then it might work.

Could try a Keihin FCR39/41.

Clive W  

The tech section is trying to be for documents and pictures on how to do things with the discussions about it here -

anyway - I may have missed something - but do you have a Keihin carb on your ls650 and not the stock mikuni bs-40?

OK
Point taken, especially because if I intend using this forum then it's a VERY bad idea to have an argument with the Moderator.
My former experience lies with these gentlemen
www.mgcars.org.uk
you're welcome to visit, and the ''general topic'' questions are just that, general topics; anything which has to do with a cross threaded plug or a magnetic sump plug collecting swarf or tuning the ignition advance to take SantaPod 110RON fuel, well, that's ''technical''.
But I guess those gentlemen are ''Brits'' so they may not align to a ''Savage'' frame of mind.
Me, wanting to be both, I'll just have to disengage one brain and engage the other.
Being birdbrained, I have plenty of room for all my brains to play ''musical chairs'' and scurry with their little synapses all over the place.
By the way, I've also found a 34mm Dell'Orto with a dozen or so jets, fitted to a 125cc 2stroke tuned for track use only, so if it delivered 36+hp in a 125cc I guess it can deliver 32 on a Savage.
What say?

Maurizio
(weather forecast looks promising for Friday, wish me luck, 500 miles is still 500 miles, rain or shine)