If I may suggest, it would be helpful to record where your fuel screw was when you started. I remember some large differences. If your bike was at 1 1/2 turns when you started and you went the standared 2 1/2 turns, you only netted a 1 turn change. My screw was only out about a 1/4 turn. To go to 2 1/2 woudl be a huge 2 1/4 turn change. BTW, this is why my bike ran so rich. I remedied it temporarily by removing the airbox lid. What a differnce! The extra fuel was there already and BANG!

Due to mfg differences etc, the fuel screw will be adjusted by the factory to make that combination run. What we need to do is go with a "add one turn out to your fuel screw" type of recommendation.

 

Bike/Rider - Ryan/Ginsu4u
Elevation - 2000 ft. and up
Date - 9-7-06

Intake:
Airbox - KDX200 high flow snorkle
Filter - Stock (but going to a uni soon)

Exhaust:
Head Pipe - Muzzy
Muffler - Muzzy's full system

Drive Train:
Front - Stock
Rear - Stock (for now)

Carb Settings:
Pilot Jet - #35 (Stock)
Main Jet - #125
Needle - N1TC
Needle Setting - Second from top
Fuel/Air Mixture - 2.5 Turns out
Slide Mod - yes 7/64

Performace:
Lean/Rich - Maybe a little lean
Low End - Good
Mid Range - Excellent
High End - Excellent
Starting - Choke for 30sec then idles fine
Idle - 1400 perfect
Acceleration - Good and strong,
Deceleration - Minor popping

Additional Mods:
Crank Case - Yes, 1/2in. (I think)
Smog - No
Cylinder - Stock
Fuel System - Stock (for now)
Ignition - Stock

Other:
Comments - Bike runs great with the Muzzy. NEED MORE FUEL!!!

OK. Heres mine. BTW great idea. Cant wait to see it when your finished.

 

Ok I just inputted all of the information in and it didn't keep it there, what am I doing wrong? How did you guys get this form finished?[&:]

 

ok, my bike doesnt sound like it has the power everyone elses has, i have 13t sprocket, 40 pilot, 125 main, and n1tc needle on 3rd position, and i have to clutch to get the front tire to come up at all... any suggestions of what i should do maybe to make it run a little better.. o and the uni filter....

 

Interesting thought!

Its true that 2 machines could have the same modifications done, but still run differently, and therefore need different fine tuning.

I'll update the form so people can add that information, but for now, put it into the speadsheet as a comment. If enough people can recall that info, I could add it into the cell to be more visible.

Thanks for the suggestion!

Mike

 

Configuration:
Bike / Rider - '06 US model KLX250S
Elevation - 500 ft
Date - Mods done in early 2006

Intake:
Airbox - KDX200 snorkle (high flow unit also same as original KLX250 from '94-'96)
Filter - OEM

Exhaust:
Head Pipe - Muzzy
Muffler - Muzzy with quiet core and spark arrester installed

Drive Train:
Front - 13 (Honda XR650 version)
Rear - 42 (OEM)

Carb Settings:
Pilot Jet - OEM
Main Jet - 125
Needle - N1TC
Needle Setting - 2nd from top
Fuel/Air Mixture - 2.5 out
Slide Mod - Drilled to 7/64ths

Performace:
Lean/Rich - Very Slightly Lean to Perfect
Low End - Good
Mid Range - Excellent
High End - Excellent
Starting - Excellent
Idle - Spot on
Acceleration - Much better than stock
Deceleration - Some slight popping on hard decel

Additional Mods:
Crank Case - Drilled airbox hole to 3/8"
Smog - (Yes, No) - Removed and capped.
Cylinder - OEM
Fuel System - IMS 3.2 tank installed
Ignition - OEM

Other:
Comments - Do the mods!

 

Configuration:
Bike / Rider - James (bifflefan)
Elevation - 1300
Date - current - 09/08/2006

Intake:
Airbox - dual snorkel (KDX200 hiflo + stock)
Filter - K&N

Exhaust:
Head Pipe - Big Gun
Muffler - Big Gun

Drive Train:
Front - 14 (stock)
Rear - 42 (stock)

Carb Settings:
Pilot Jet - 40
Main Jet - 125
Needle - N1TC
Needle Setting - 2nd slot
Fuel/Air Mixture - 2.0
Slide Mod - 7/64ths

Performace:
Lean/Rich - Just a touch lean
Low End - Excellent
Mid Range - Excellent
High End - Excellent
Starting - choke off after only a few seconds
Idle - Smooth idle, doesn't change whether warm or cold
Acceleration - Good
Deceleration - Good

Additional Mods:
Crank Case - bypassed airbox and use UNI UP-104 crank case breather filter
Smog - gone
Cylinder - stock
Fuel System - stock
Ignition - stock

 

Configuration:
Bike / Rider – John (AKA Noodleman)
Elevation - 5500
Date – 9/8/06

Intake:
Airbox – KDX Hiflow
Filter - stock

Exhaust:
Head Pipe - stock
Muffler – stock drilled 1/2

Drive Train:
Front - 13
Rear - stock

Carb Settings:
Pilot Jet - stock
Main Jet - stock
Needle – N1TC
Needle Setting – 2 down
Fuel/Air Mixture – 11/2
Slide Mod –drilled 7/64

Performace:
Lean/Rich - (Slightly Lean, Perfect)
Low End - (Fair, Good)
Mid Range - (Fair, Good)
High End - (Good, Excellent)
Starting – choke when stone cold
Idle - smooth
Acceleration - Good
Deceleration – slight pop under load (going down hill using compression to break)

Additional Mods:
Crank Case – air box drilled 1/2
Smog - (Yes)
Cylinder - stock
Fuel System - stock
Ignition - stock

Other:
Comments – Bike does not like to idle and loads up above 8000’ elevation with this setup.

 

Configuration:
Bike / Rider - '06 US model KLX250S / Joe (aka Cowboy 6)
Elevation - 500 ft
Date - 30 AUG 2006 (4 SEP 2006 removed air box cover completely)

Intake:
Airbox - KDX200 snorkle (4 SEP 2006 removed air box cover completely)
Filter - OEM ( Uni on order)

Exhaust:
Head Pipe - Muzzy
Muffler - Muzzy (quiet core in possesion but not installed)

Drive Train:
Front - 14 (OEM)
Rear - 42 (OEM)

Carb Settings:
Pilot Jet - 40
Main Jet - 125
Needle - N1TC
Needle Setting - 2nd from top
Fuel/Air Mixture - 2.5 out (started at .25 turns, I believe this is why she runs so rich, will be screwing it back in to around 1 1/2 to 2)
Slide Mod - Drilled to 7/64ths

Performace:
Lean/Rich - Very rich (a little rich) The additional air from the open box brought the mixture closer to optimum but not there yet
Low End - Good (Excellent)
Mid Range - Good (Excellent)
High End - Poor (Excellent)
Starting - Acceptable (better)
Idle - Dies at my desired idle speed due to rich condition. (better but not there yet)
Acceleration - Better than stock (Much better than stock)
Deceleration - Never had any popping either way. Again, she is STILL a bit rich.

Additional Mods:
Crank Case - Drilled airbox hole to 7/16"
Smog - (Yes, No) - Removed but I need to make a cool block of plate, capped for now.
Cylinder - OEM
Fuel System - OEM
Ignition - OEM

Other:
Comments - Muzzy system is LOUD. I did not notice a whole lot of difference with the quiet core so, I left it out for now. My only complaint with this or any system is that it needs that 300+ kit. The bike MUST have the bite to match the bark.

 

Configuration:
Bike / Rider - 2006 US KLX250S / Chris (aka cwgoff)
Elevation - 1000 ft.
Date - 15 SEP 2006

Intake:
Airbox - Snorkel removed (KDX200 snorkel backordered - will do double snork - both forward)
Filter - OEM

Exhaust:
Head Pipe - Muzzy
Muffler - Muzzy w/ QC & SA

Drive Train:
Front - 13 (Sunstar)
Rear - 42 (OEM)

Carb Settings:
Pilot Jet - 35 (OEM)
Main Jet - 128
Needle - N1TC
Needle Setting - 2nd from top
Fuel/Air Mixture - 2.5 out (stock was 1.33)
Slide Mod - Drilled to 7/64ths

Performace:
Lean/Rich - About right (may need a little more air, thus the dbl snorkel mod pending)
Low End - Between good and great
Mid Range - Great
High End - Between good and great (much, much better than stock - holds RPM on all but the steepest of hills when in 6th)
Starting - Great (has always been great - only 2-3 seconds on choke)
Idle - Perfect
Acceleration - Way better than stock
Deceleration - Just the slightest bit of pop sometimes. 98% of time zero pop. Even the 2% is faint.

Additional Mods:
Crank Case - Drilled airbox hole to 7/16"
Smog - (Yes, No) - Removed
Cylinder - OEM
Fuel System - OEM
Ignition - OEM

Other:
Comments - The bike revs to 8000-8500 very quickly. Would go past if I let it, but I don't unless by accident. Shift at 7000-7300. When cruising in 6th, the tach could be my speedo (i.e., 6000 @ 60, 7000 @ 70, etc.). The Muzzy is beautiful. Wonderful fit and finish. Highly recommend upgrading handguards to something that will be more useful. I broke my left handguard on the 2nd time the bike every laid over.