Extended Finger adjustable Fuel Screws - NO SCREWS AVAIL- HITS ACC PUMP HOUSING

Extended Fuel Screw set   $39.95
F-Pro pn: 5020m
replaces: 13279-47070

 with 2 new screws, springs, washers and o-rings

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"Long Boy"

Finger adj. extended Fuel Screw Kit

Frustrated with trying to find an "almost 90 degree"  screwdriver to fine adjust your fuel screws for best idle and cruise?
Use Factory Pro's new "finger adjustable" fuel screws to adjust fuel screws for best throttle response. Traveling to high altitude? It's easy to lean out the lowend temporarily.

Make your life easier!

Remove old short stock fuel screws, old o-rings, old washers and old springs. The o-ring might be stuck in the carb, so, take a light and make sure it's really out if it didn't come out with the screw (or you can't find it after you took out the screw)
Use a small bent wire to pull it out if it doesn't drop out. Keep the old parts for "spares".

Fuel screw assembly comes with:
2 Long Boy fuel screws
 2 new o-ring
2 new washer
2 new spring


CRB-S48-1.0   $89.95

(for use when using the stock airbox)
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STD drop-in carb recal kit

Adds more power at all throttle positions when properly tuned - For use when using the bike's original airbox.

This kit will allow tuning for each individual bike and bolt on exhaust systems.
Works well with stock exhaust or modified stock exhaust.

This is the kit of choice - pulling stronger at part throttle and at full throttle.

CRB-S48-3.0   $89.95

(for use when using non-stock airbox or pod filters)
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Config 30 Carb Kit

For those who have removed their bike's airboxes and are running K&N or similar air filters.

Adds more power at all throttle positions when properly tuned -

This kit will allow tuning for each individual bike and bolt on exhaust systems.
Works well with stock exhaust or modified stock exhaust.

This is the kit of choice - pulling stronger at part throttle and at full throttle.


Howdy Mr Marc....

mad scientist here to report has been approximately a full year since installing your kit & tweeking my carbs here & there with your advice & guidance & parts....I have put on nearly 10.000kms (7000miles) since Aug 2012 , same spark plugs & am averaging 20km per liter of fuel or just over 50mpg with a normal size wind screen & saddle bags. It was a very very cool feeling today on a highway (407...very nice road on Sunday afternoons)  just outside of Toronto when I hit the throttle hard and went from 110kmh to 175 kmh in the blink of an eye pulling hard with no end in sight....what a rush , not an every day event for me but on occasion its fun.
Thanks again for yer help & I have spread the word best I can in my lil part of the world

Vic F
Toronto, Canada

TL-float height gauge
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The only way to accurately measure float heights. Kowa Seiki's tool works on nearly every carburetor.

Must be a pretty good tool as I used an identical one to adjust the floats in the 60's on a Honda 90 - and it hasn't changed a bit since then!

Virtually eliminate missed shifts that are not caused by existing shift fork damage
Factory Pro Shift Star Kit

Call 415 491 5920 (Pacific Time Zone) or email
Subject:   Jetting
Date:    Fri, 20 Aug 1999 16:21:53 -0500
"_nichols" <>
To:  <>

I have installed your Config 10 kit on my VS800, which has Vance and Hines slip-ons, with the quiet baffles installed. I previously had the CXXXa kit installed, and the thing ran way too rich, even after lowering the needles (the needle they supply is much shorter than stock!) As you probably are aware, the CXXXa kit requires you drill the slide lift holes. Well, after installing your kit with the slightly leaner mains supplied ( I elected to go with the set up you had with the Cobra slip-ons, step by step), the throttle response was great off idle. It used to rev very rich and wet, almost to the point of shutting off. It pulls evenly off idle in second gear, but then it seems to lean out just a tad above mid range. So, after all this, here's my question; Is the bike transitioning too quickly to the mains because of the slides being drilled, and if so, can you compensate for it by dropping/shimming the needles, or should I raise/shim them? Should I go back to the stock mains, or should I try the richer one's in our kit? Or worse yet, did I trash my slides by drilling them? Any help would be greatly appreciated. I have heard nothing but good things about your products, and judging by the kit I purchased, you guys are awesome! Hope to hear from you soon.

____ Nichols
72 5th Street
Shalimar, FL 32579-1367

General Technical Support

Absolutely NO carb parts sold in California.

New and improved
Suzuki Teka SFI 2
with new TPS display and "MMT" Memory Module Tuner feature

Finally - Quick, easy, cost effective Suzuki tuning with no expensive "add-on boxes"
Suzuki cruisers and sportbikes

Please click here for more info

Contact Factory Pro
M-F, 9am - 5pm, Pacific time, -7 or -8 GMT

800 869-0497
 USA and Canada

415 883-5620

no fax

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If it's
4pm at Factory Pro it's 9am in eastern Australia.

parts information

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And most importantly
Restart back at the HOME page and click on the red box in the top left to find the bike that you want parts for...

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