Today I received a recommendation for flatslide TM38 or even TM40 over any of the round slide VM-carburetors and they also explained to me that a too small carb could actually cause worse fuel economy than a larger carb which I did not know.

Has anyone used a Mikuni TM-series carburetor on their Savage?

If I want to keep the airbox and paper or foam stock like filter, would any of these carbs 36mm round slides or flat slides do much of anything better than the stocker ?

Cool.
Srinath.

verslagen1 wrote on 01/28/20 at 09:45:45:



LOL, I asked cos I got them lying about somewhere - these things that had an acrylic float bowl. I actually have a few of em things here and there, I think one was a virago 2 into 1 intake idea, ofcourse I sold the virago so that took care of that.

Cool.
Srinath.

So here we go again. Please indulge an Aussie
I have a 2016 S40 with the stock BS40 and a dyna muffler.
I've changed up the main jet and performed the spacer mod and that has improved things as far as WOT and top speed.
I've been thinking about fitting a VM36 or a VM38 after reading all about Lancers kit people have been using with great results.
I live in Australia and well to be honest I'm kinda better off buying locally.
I've made some enquiries to a well known Mikuni dealer and asked him about fitting a VM and what jets/jet kit may be required along with adapters for the existing airbox and manifold to the engine etc including a cabling solution.
The guy does know his stuff.
However his recommendation is to use a flat slide TM40-6 pumper as he says that if the savage engine is similar to the DR650 (which i understand it aint!) then this would be a better bolt on option.
After reading this thread I my doubts on his recommendations.
Not to mention the price difference is significant in the kits on offer.
I am after the best bang for buck option which i agree seems to be the VM.
My confusion lays with what adapters to use for the carb to the engine and to the standard air box along with the cable and throttle to use.
I understand needles and tuning are the most interesting part of any carb mod and i am looking forward to that part
I just need a few pointers and I'm hoping that there might even be some Aussies that may have done something similar.
Thanks for your time and patience in advance  

He's told me that i would need to find out if the DR650 BST40 stocke needles are all the same as the stock LS650 BS40 carbs needles.
He advised that if the same then he would have no issues in putting together a needle kit that would allow me to tune the TM40-6 without issues for the S40...
I'm hoping for lots of input.

Thanks Lancer
I'll send you a PM very soon.
I appreciate it!

"Comparing DR650 to LS650 is where the problem comes in. The DR650 cam and head is completely different. I would be careful listening to recommendations from someone who doesn’t know the difference."
Thanks for good advice mate.
He was more about matching (in his opinion) a more "modern" performance carburetor than a VM.
He just wasn't sure what needles were going to be needed for the flat slide in this application, but he said he's done a lot of DR650's and they tend to run leaner.
SO if the two carby's and engines were similar then he'd know what to look at supplying.
Honeslty though his solution is pretty cost prohibitive, so a VM definitely looks like a better solution...i'll get there

Psydton, I think the 40mm carb will work fine and allow potential for more improvements in the future.  But if you want a quick and easy route to improved carburetion, you will be hard pressed to beat the Mikuni VM.  I personally think the VM38 is ideal.  The VM36 might work just a tad better on a stock engine, but the VM38 will work great too and it will also support most any mods you perform in the future.  This post will give you a good idea how the VM38 stacks up, and also give you a good idea where your jetting will end up.

http://suzukisavage.com/cgi-bin/YaBB.pl?num=1585461605