I'm about to rejet the carbs on my 2001, thanx srinath.
And I like to totally understand things before I take em apart.
The choke and the gs is it a true choke? Or is it a inrichment leaver? Now the 2001 has a midmain, that's the choke jet or inrichment jet, it adds gas to help it start... A true choke has a butterfly that seals off some.
Am I even close?


Oh yeah merry christmas!

I'm 99.9% sure that I read here that the choke is an enrichment valve, and is actually its own jet, not a true choke. But wait for a guru to chime in.

I'm 99.9% sure your right... I'll keep waitn....nick, did you heel up ok from your dismount?

It is an enrichener, and has its own passages; no jets involved at all.  It draws directly from the floatbowl.

Quote from: rob1bike on December 19, 2006, 09:51:14 AM
I'm 99.9% sure your right... I'll keep waitn....nick, did you heel up ok from your dismount?

Yep, I'm 99.9% normal again. Well, whatever passes for normal with me, anyway.

So the choke on the gs adds extra gas to the engine instead of limiting the amount of air that is getting in?

Yes.

The idea is that the gas sacrifices itself to seal the rings, and increase compression, until the rings get warm enough to seal properly.

So scratch, does it flow through the mid main? I'm about to rejet a 01 and I wanna make sure I have all I need. I've got a jetkit from srinath, were both thinkn that the mid is a choke jet abd can be left. Wathcha think?

Quote from: scratch on December 19, 2006, 02:27:53 PM
Yes.

The idea is that the gas sacrifices itself to seal the rings, and increase compression, until the rings get warm enough to seal properly.

How noble!

Seriously, I came here to answer, but it was already answered

Quote from: rob1bike on December 19, 2006, 03:39:28 PM
So scratch, does it flow through the mid main?  I'm about to rejet a 01 and I wanna make sure I have all I need.  I've got a jetkit from srinath, were both thinkn that the mid is a choke jet and can be left.  Wathcha think?

Honestly, I don't know the '01+ carbs, but almost all carbs do not draw gas for the enrichener circuit from any jets.

See if you can trace the passages from the mid-main to the enrichener circuit.  Pay attention to tunnels and plugs where the manufacturer would drill holes for the passages, and see if they intersect.  I doubt it.  It wouldn't be a mid-main if that's the case.

To confirm that it is a mid-main jet for carburetion purposes, look to see if it has a hole going directly to the venturi (you can either see it from the mouth of the carb, or the intake side, a little hole, or series of holes (like 3, in a triangle), over where the mid-main would be located, or you can remove the mid-main and see if you can look through the cavity to a hole into the venturi).

Not to mention that a mid-main that actually supplies the venturi, would decrease the effectiveness of the enrichener circuit.  (Same jet supplying two circuits; that little hole upstream of the [closed] butterfly valve, doing nothing as gas is trying to be sucked from a higher orifice...)

Kinda defeats the purpose...