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how do I know what jets I have?

Started by Grainbelt, May 31, 2006, 07:00:54 AM

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Grainbelt

Pulled the carbs the other day to do an air-fuel mix change and shim the needles. Looks like the needles are not stock (circlip has 5 potential slots), and now i'm curious what size pilots and mains I have. (93 model)

Any clues? exhaust and airbox are stock, so I don't know why anyone would have messed with this, but I'm the 3rd owner, so who knows.
Gone: '93 GS500  --  Street: '06 Ninja 650R --  Dirt: '08 DR650SE

MarkusN

The needle with 5 grooves is standard in Europe. The size of the jets should be stamped on the head; at least for the mains.

Standard jetting for European 93s is 120 main 40 pilot, if memory serves.

hmmmnz

if you want to tell what is in there, turn the carbs upside down take off the float bowl and in the center there is a brass screw, written on the top of the screw is a number, it should say 120
but a little bigger wouldnt go astray,
pod filters, costum r6 quill exhaust(no baffles)40/140 jets, heavy duty springs, sv650 rear shock, gsxr srad tail, bandit 600 4.5 inch rim with 150 tyre, gsx twin disc front end "1995 pocket rocket"  ridden by a kiwi in scotland

domas

You might need to screw out pilot jet to see it's size.
'02 GS500 Yellow, Mods: K&N drop in w/o restrictor, BSM full exhaust, 132.5/60/17.5 (e-clip @ 4), progressive springs, katana rear shock ('01), fenderoctomy,  sleek mirrors, loud dual automotive horn, warmed grips(home made), SS front brake line.

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