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Best rejetting kit for desmogged 99 Valkyire with Cobra exhaust?

Started by Antony, Tue 26, Mar 2019, 01:09:41

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Antony

Tue 26, Mar 2019, 01:09:41
Hey folks, can anyone recommend the best rejetting kit for a 99 Valk that has been desmogged, running a Cobra exhaust system, stock standard airbox.
Thanks in advance.

9Ball

#1
Tue 26, Mar 2019, 06:40:47
Factory Pro....
VRCC #6897, Joined May, 2000

1999 Standard
2007 Rocket 3
2005 VTX 1300S

98valk

#2
Tue 26, Mar 2019, 09:11:47
de-smog doesn't require a jet kit.
even the cobra jet kit was only richer needles, which u can do by adding a few extra washers to the oem needles. always go one washer extra compared to the others, for the front two carbs only. then just open up all the idle mixture screws to 3 turns open from lightly seated closed and go ride.
1998 Std/Tourer, 2007 DR200SE, 1981 CB900C  10speed
1973 Duster 340 4-speed rare A/C, 2001 F250 4x4 7.3L, 6sp

"Our Constitution was made only for a Moral and Religious people. It is wholly inadequate to the goverment of any other."
John Adams 10/11/1798

Bighead

#3
Tue 26, Mar 2019, 18:31:30
Stock
1997 Bumble Bee
1999 Interstate (sold)
2016 Wing

RWhitehouse

#4
Thu 28, Mar 2019, 13:31:54
I have a desmogged '98 with the Cobras (with baffles in).

I'm running 38 pilots (35 is stock), fuel screws at 2 turns. Stock needles, stock mains, stock airbox and OE filter.

It runs beautifully and returns very typical MPG's (mid 30s average, faster highway will drop that down more like 30 or high 20's if you're really cruising).
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