Normally 31 horses, but ther ara reduced power Savages that have 27 horses.
Greetz

I know one guy that has done a dyno run and has nursed 32-33 bhp out of his with merely a carb change.

The horspower + torque figures were on post 625 of the be savage site and were posted by Greg 650 in a former life, I'm into that kind of thing.

Clive W

I think we have a misunderstanding, the info I needed was how accessible is the main AIR jet, not the main jet.
On the FCR it is external, you just need to remove the bellmouth (and all the bodywork!!).
Thanks in advance.
Clive W

My FCR has a slow fuel jet, a fuel screw (on the engine side of carb) and a slow air screw (not a jet) on the filter side, there is a table that show how many turns out = what jet size.
The needle is a ocems, again there is a table telling you what the letters mean, seams pretty good though.
Then there is the main/main air jets. This started at 165 main 200 main air (main air is next to the slow air screw), I am now at 168/192 both going richer (doing that with the main air on these carbs is a bit of a no no but seems to work).
The 168 works right across the rev range at full throtle and the 192 richens things at high revs and full throtle.
The standard carb is a keihin CVK40 much like Your mikuni BS40 I presume, I had a dynojet kit on that but the FCR was much better even before I changed the jets.

Clive W

Dealers are really ignorant sometimes....They should be able to order the jets from a catalog (as mine do).  The carb is a Mikuni BS40 and oly takes one type jet...round and slotted.  There are 2 size jets that fit too.  One has a smaller slotted head but the threads and the orifice are the same and it works too.

Glad that it worked out for you.

In the "old Days" a dealer kept bolts and stuff in boxes because customers actually did their own work on bikes.  "Way back when" I remember digging through boxes at a dealership to find a particular bolt just for what I needed.  It was kind of neat having that kind of relationship with a dealer.  It also inspired dealer loyalty.  Now they don't care.  It's all about the dollar.  Hell, I met a mechanic at my favorite dealership that said he didn't ride a bike.  Go figure.

People tend not to do that anymore, and the biggest reason is that most bikes (and cars) aren't built for tinkering these days.  You have to take it to someone....just take a look at crap like Orange County Choppers.  People don't take the on the project (most don't ) of chopping their bike anymore.  They just buy it that way and then pose with it.

I'm done