SuzukiSavage.com - Print Page

SuzukiSavage.com
/cgi-bin/YaBB.pl
General Category >> Rubber Side Down! >> Air Cut Off Valve?
/cgi-bin/YaBB.pl?num=1117741808

Message started by 650-rider on 06/02/05 at 12:50:08

Title: Air Cut Off Valve?
Post by 650-rider on 06/02/05 at 12:50:08

Hello everyone - I have a question. I was surfing on eBay for Suzuki Savage items and I saw "SUZUKI LS650 SAVAGE AIR CUT OFF VALVE". Does anyone know what this is for, and if it is a standard item or an accesory? The description says that it will "enrichen the mixture when the throttle is closed stopping backfiring..". Thanks.

Title: Re: Air Cut Off Valve?
Post by Reelthing on 06/02/05 at 13:06:23

That's the little diaphram that goes under the plate on the right hand side of the carb

Title: Re: Air Cut Off Valve?
Post by Savage_Rob on 06/02/05 at 14:00:21

Don't bother. I bought one and can't tell the difference between it and the stock one on my bike with a magnifying glass and a bright light.

Title: Re: Air Cut Off Valve?
Post by Reelthing on 06/02/05 at 15:05:19

Was it s'pose to be better - looks like there are 3 or 4 numbers depending on the year

Title: Re: Air Cut Off Valve?
Post by bobo383 on 06/02/05 at 15:18:41

You only need it if the one in your carb is torn or broken. It's held in place by the round plate to the left of the idle mixture screw. Careful taking it out, there's a spring behind it.

http://i4.photobucket.com/albums/y114/bobo383/IdleMixture.jpg

Title: Re: Air Cut Off Valve?
Post by Savage_Rob on 06/02/05 at 15:37:29

Reelthing wrote:

Was it s'pose to be better - looks like there are 3 or 4 numbers depending on the year

It was just the claim that it reduces or stops backfiring that made me wonder whether it was "improved" in any way. I don't remember the price but I think it was around $10 or $12, so I ordered one to see. It was identical to the one in my '98.

Title: Re: Air Cut Off Valve?
Post by Reelthing on 06/02/05 at 16:32:25

Well you got a deal on a spare -looks like ron ayers is like 35 bucks

Title: Re: Air Cut Off Valve?
Post by slavy on 06/05/05 at 08:02:02

What it does is - it closes the idle mixture AIR passage, so it enrichens the idle mixture when You decelerate.
In normal conditions the spring keeps the diaphragm and the plunger in a position so the air passage stays open. If You decelerate with the trottle closed You create a very strong vacuum that pulls on the diaphragm , overcomes the spring ,and the plunger closes the air for the idle circuit .

Title: Re: Air Cut Off Valve?
Post by Greg_650 on 06/05/05 at 08:34:38

slavy wrote:

And then when you richen the idle screw mixture, all the popping should be gone, right?