Mixture Screws

gaillarry
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12 Apr 2009 10:53 #280978 by gaillarry

Mixture Screws was created by gaillarry

I'm adjusting the air/fuel mixture screws on the carbs (KZ550) and had a brain fart. They're now set a 2 1/4 turns out, burning a little rich. Turn in to rich and out to lean ? or vise-versa?

1977 KZ1000
1985 Gpz750

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Old Man Rock
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12 Apr 2009 10:59 - 12 Apr 2009 11:00 #280980 by Old Man Rock

Replied by Old Man Rock on topic Mixture Screws

Can't say 100% on your setup but normally it's turn to out to lean.... On my Keihins, this is the setup in the pilot settings...

OMR

1976 KZ900-A4
MTC 1075cc.
Camshafts: Kawi GPZ-1100 .375 lift
Head: P&P via Larry Cavanaugh
ZX636 suspension
MIKUNI, RS-34'S...
Kerker 4-1, 1.5" comp baffle.
Dyna-S E.I.
Earls 10 row Oil Cooler
Acewell 2802 Series Speedo/Tach
Innovate LC1 Wideband 02 AFR meter

Phoenix, Az

Last edit: 12 Apr 2009 11:00 by Old Man Rock.

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timebomb33
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12 Apr 2009 11:21 #280984 by timebomb33

Replied by timebomb33 on topic Mixture Screws

if it is a fuel screw [towards front of motor] then turning it out will richen the mixture, if it is the pilot airscrew [towards the airbox side of bike] then if you turn it out it will lean out the mixture.

1973 z1 2-1974z1-a,2-1975z1-b dragbikes1015cc+1393cc, 1977kz1000,1978kz1000,1981kz1000j, 1997 zx-11, 2000 z12r,1428turbo nitrous pro-mod and a shit load of parts thats all for now leader sask.,CANADA
I THINK MY POWERBAND BROKE

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gaillarry
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12 Apr 2009 11:23 #280986 by gaillarry

Replied by gaillarry on topic Mixture Screws

Thanks, just what I needed.

1977 KZ1000
1985 Gpz750

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Mixture Screws

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