Can someone translate this tech goob? SV650 related

[Zapf]

Quote: from SV forum (re SV650)

What did he actually do? to modify the fuel system? tkns

I do an old trick on the intakes that never fails...taking a tip from the best engine builder and innovator in the world...Yamaha. Maybe you old farts like me remember the Yamaha YICS system" It stands for Yamaha Induction Control System...basically a loaded intake plenum....already charged with newly atomized fuel molecules...just waiting to be called upon to be sucked into the combustion chamber and banged off....good idea I sez to meself I'll just pirate this idea and see what cooks out...literally. Cheapskate me goes to the auto parts store and buys about three feet of intake/fuel line, and one brass T....I cut equal lengths of the line and hookemup to the intake manifolds, then Tee off to the petcock.....makes vacuum synching a snap....hook up the old mercury sticks...dial it in....hookerup......MY O MY!!!!

It's so smooth with this YICS system now I can turn down the idle to 800 SMOOTH rpm and the little fella can compete with the bigboy Harleys in the coolguy idle rumble acoustical music category!!

[What?]

I know what he's on about, but couldn't explain it alot better.
Do a google on XJ550 , 650 or 750 and look for engine/carburretion drawings. It's a piece of piss to get your head around it if you look at it.

[Artifice]

plenum = A condition, space, or enclosure in which air or other gas is at a pressure greater than that of the outside atmosphere.
i.e. the head of the engine in this case i think.
atomized fuel molecules = what your carburettoer does

sounds like fuel injection system into the heads.

[slob]

Sounds like his system is adding fuel to the air entering the carb or FI (depending on the model of SV650). I would have thought that this would make it run really rich with the extra fuel (maybe he adjusted the mixture?)??

[vifferman]

Sounds like his system is adding fuel to the air entering the carb or FI (depending on the model of SV650). I would have thought that this would make it run really rich with the extra fuel (maybe he adjusted the mixture?)??Yeah, that's what I thought (unless he didn't explain it properly). The only bit that made sense was hooking up the lines and balancing his carbs / injection units. That would make it run more smoothlier.

[duckman]

No no, your all wrong ... It's a flux compasitor he's built with an old vaccum cleaner.
You see as the carbs suck fuel and air in, the flux compasitor cleans all the dirty bits of your engine.
This saves you hours of laborious elbow wrenching trying to keep ya motor sparkly.. :bleh:

And heres a big (SP) for the spelling mistakes... :doobey:

[2_SL0]

My god Duckman , yourve got it. Personally I recommend electrolux. (Yes they are a little bulky, but they can lift a bowling ball) :lol:

[backfire]

Hi hillbilly, any chance of an exact site reference??

[scumdog]

No no, your all wrong ... It's a flux compasitor he's built with an old vaccum cleaner.
You see as the carbs suck fuel and air in, the flux compasitor cleans all the dirty bits of your engine.
This saves you hours of laborious elbow wrenching trying to keep ya motor sparkly.. :bleh:

And heres a big (SP) for the spelling mistakes... :doobey:

No no, it's a flux CAPACITOR, a compasitor would cause fuel inversion until ram-air pressure cancelled it out!!

[2_SL0]

www.electroluxmyass.com :scooter:

[FzerozeroT]

he's putting a flammable mixture into his airbox because the airflow isn't enough to activate the injection? VERY BAD IDEA you can get a flashback if done wrong /at high revs

[What?]

Nothing to do with the airbox.

Here is a reasonable description of the Yam system: http://www.xz550.com/YICS.html

The set-up claimed to have been done above is the same theory, but I doubt it really had much impact.

If you want more grunt from your 650, do what Spankme did and get a 1000.

[Zapf]

Nothing to do with the airbox.

Here is a reasonable description of the Yam system: http://www.xz550.com/YICS.html

The set-up claimed to have been done above is the same theory, but I doubt it really had much impact.

If you want more grunt from your 650, do what Spankme did and get a 1000.

hahah thanks. Don't worry, I haven't even got my 650 yet (can't wait, next weekend). Just doing some research on the bike. Think it'll take me a while to get bored of it.... coming from a VTR250 :msn-wink:

[What?]

I don't think you will be disappointed, the SV is a great bike.

[Sniper]

I think who did it is a DIY maniac trying to get himself killed :P