**PLEASE ENTER YOUR REJETTING INFO HERE**

[otakuphill]

I'm In Los Angeles, CA and I'm trying to figure out what jets i should order for less fuss. I want a smooth ride with better pickup.

I have a 91
Just ordered the K&N Lunchbox
stock pipes with a 08 R6 oem Slipon

What jets and setup should i start with?
I love it but requires a little more throttle to launch well after muffler install.
Video after i put it on.   
http://www.youtube.com/watch?v=yjAS8U8qC18

[GSF500]

2007 K&N Lunchbox filter, Full Jarding Exhaust, 20/65/145. Bike starts better, runs great, nothing else touched except Idle adjusted just alittle. Maybe some on can answer. Bike pulles hard up to 7 or 8 grand then seems to be starved at wot. I did not adjust the mixing screws or add a washer to the needle. The carbs have been synced. Maybe try 20/65/147.5? The bike does run great and I don't need to fix it but I would like to tweak it for optimum performance. Thanks

[gsatterw]

might want to try the 147.5, but first make sure there are no kinks in fuel or vacuum lines. If you have an inline filter, get rid of it. Check for vacuum leaks, and make sure your valves are in spec. Then try the bigger jets. If the bigger jets don't work, try a size smaller.

Graham 

[GSF500]

Thanks...... I will try 147.5 because lt runns soooo much better. It just needs a tweak. It will be a while before I pull it apart but I will update when I do. Thanks again    

[jestercinti]

Plug chops will tell you if lean or rich at WOT.

If you have never done this before, it's easy.  Go to a highway.  Remove existing plugs and replace with new ones (Regular, not iridium).  Immediately accelerate to near or at WOT.  You may need to drop down a gear or two to maintain high RPMs WITHOUT excessive speeding.  After 2 minutes, hit kill switch, pull in clutch and check the white porcelain on plugs near center electrode.

You want brown.  If black, rich.  If white, lean.  That easy.

[GSF500]

Thanks... I will do that once the weather warms up. I will post results when I do it

[GSF500]

Update: The jet info on the bike is the same and runs GREAT Full Jardine, Lunchbox, 20/65/145, nothing else touched. I believe the problem before was bad gas. I filled the tank with fresh gas and sea foam and its running better than ever, even at wot. Very Happy with the mods and recommend them on the GS.    Plugs Look like they are suppose to. Thanks!!

[otakuphill]

91 Gs500

K&N Lunchbox
08 R6 Slip on
Stock pipes

40/150
no washers
2 1/2 turns

Los Angeles, CA
Elevation 131 ft (40 m)

[Mezzo]

gm51b / 1989
Baden (Germany) / 210m
K&N Lunchbox
Jama Laser Deeptone
Pilot 40/Main 147,5
no washers
3½ turns
perfect
Pilsener

[attachment deleted by admin]

[IAmSpartacus]

1989 GSE
Las Vegas, NV: ~2,000'
K&N RU-2970 'lunchbox'
Stock pipes with Yoshimura R-77 slip-on
40/147.5
2 washers
3 turns
Runs great. Warms up much faster, no more backfires on deceleration, pulls well from about 3k on up. Idles a bit high after the rejet, so I need to adjust.
Spaghetti!

[Destiny2191]

Anyone know the metric conversion for a #4 washer? Getting right on my nerbs!

[radodrill]

2009 GS500F
Morgantown, WV
K&N Drop-in - no restrictor
Stock exhaust
20/60/142.5
1 washer
2.5 turns

Runs great with a hard pull over the entire rev range; no flat spots.  Normally no choke required; only when it's been sitting in the cold for a while. Very responsive and fast acceleration at highway speeds.
Stock jetting felt flat over 7K RPM and didn't have a hard pull.

Favorite food would have to be a home-made Black Forest cherry cake, but seared scallops are a close second.

[cheddle]

•Year of bike: 2011
•Location/Elevation: Hobart, Tasmania 10-300m
•Type of air filter: K&N slip-in
•Type of exhaust: gutted stock can
•What size jets you used (2 numbers for 89-00, 3 numbers for 01+) 20/60/142.5
•How many washers: -1 compared to stock
•How well it runs: better warm up, dull between 5-7k, better (more powerful) at other rpm, rich on throttle roll-off especially between 5-7k rpm
•Your favorite food: bbq grilled holumi

[Golly]

Oops

[Golly]

1990
Standard airbox
Standard Exhaust
120 main
40 pilot
Aussie carb top circlip position on needle.
Standard performance so far. Starts instantly and warms up quick

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[tialloydragon]

1990 Engine

Elevation 30ft

42.5 pilot, 150 main

Yosh Slipon with stock headers.

K&N Lunchbox

My needle is the notched one with the c-clip, and I believe it is on the second from the bottom.

Warm-up time is around 2-3 minutes.

Runs good (better after I finish the valve adjustment I am currently doing.)  No flat spots, and it pulls hard.

[Golly]

1990
Standard airbox
Standard Exhaust
120 main
40 pilot
3 turns on mixture
Aussie carb top circlip position on needle.
Standard performance so far. Starts instantly and warms up quick....but floods easy..dont think its right.


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[struckjm]

so many lunchboxes in here.

is that filter easy to fit inside the frame? I don't want to buy aftermarket only to experience the same pain that the factory box gives me.

[user11235813]

Factory airbox and factory filter with factory exhaust and just a little bit of rejetting 20/60/132.5 gave me an absolutely perfect result at sea level. Just sold my GS and it ran and idled perfectly, and still had the factory valve shims well in spec after 76k kms.

[davidwagner]

Cleveland, OH: HiFlow air filter in factory airbox with factory exhaust: tiny re-jet to 20/60/132.5 runs great for me on my 2004!