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01-12-2008, 02:15 PM
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#1
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Senior Member
Feedback Score: 4 reviews
Join Date: Jun 2004
Location: Michigan
Posts: 8,015
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Searching for who runs what as far as jetting goes is beginning to be a pain. You cannot use "36" in the search. So, can we just have those that run 36's on big bores list their engine combo and jet sizes.
I was advised to run certain sized jets with my combo, but the quad would run like turd after 1/2 throttle. I had to drop 28 sizes to get it to run correct. No popping what-so-ever at this point. Plugs look a little sooty, described as a lean condition by another member. I'm now at 132/135.
So, please list your engine combo, carb/filter/intake set ups, exhaust, ignition, elevation, and your jetting. Advise if your jetting was the result of the LM1 or dyno tune.
FPS 730
Ported
Trail Cams (1st Design)
Muzzy Shortened
Dyna CDI
36's w/Stock Pilots
Stock Intakes
GYTR w/Outerwear
2 Shims Per Needle
132/135 @900 ft
__________________
2004 KFX730
2003 Predator 90
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01-12-2008, 02:19 PM
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#2
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Senior Member
Feedback Score: 0 reviews
Join Date: Jul 2007
Posts: 271
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port the boost
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820
41 fcr
lte
dyna
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01-12-2008, 02:20 PM
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#3
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Senior Member
Feedback Score: 0 reviews
Join Date: Jan 2006
Location: Haughton, LA
Posts: 3,515
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FPS800
Ported Heads w/stock size valves
New Trail/Race Cams
AMR Stage 3 CDI
Regular Muzzy
Keihin 36mm F4 Carbs
Factory Pro Needles (richer Mid range)
K&N Air Filter (K&N part# RU-4720)
148F-150R Keihin mains & #42 pilots w/stock intakes and 93 oct fuel (62.5 RWHP)
175F-178R Keihin mains & #45 pilots w/UPP 36mm MS intakes and U4.2 fuel (64.5 RWHP w/170-172 mains, a little lean)
200' elevation
Dyno tuned @ Wicked Motorsports & LC1 A/f meter
__________________
My Marble White V: K&N filters w/Outerwear, AMR CDI, AMR Racing coils, Dalton OR/BL Spring, VFJ stage 2 Clutch , DPK 58g weights, Titanium Clutch cover bolts, Muzzy Exhaust - Jet-Hot Extreme Coated, PRM Desert Grab, Kawie Front Bumper, IMS Foot Pegs & Heel Guards, AC Nerf Bars, Maier CF Scoop Hood, Kawie Gripper Seat Cover, Royal Purple 15-W40 Motor Oil, ESR Temp Gauge, Crankcase Vent Mod, Fluidyne Radiator, Two Aluminum In-Line Coolers, LED Tail Light, Precision steering stabilizer, Maxxis Razr 2's on Black C-Series rims, 24" Extremes 9 Paddle & 21" Buffed Mohawks on Polished C-Series rims, 22" Innova Racers (rims undecided), ASR SS +2" Brake Lines, ASR +2" A-Arms & Tie Rods, All Ball's Racing Tie Rod End's, Durablue 2"+2" Eliminator Axle, G-Force +3.5" Extended Hubs, Houser Black +2" steering stem & Anti-vibe Fat Bar Mounts, Black Pro Taper Couture Fat Bars, Elka's Race Front & Rear, FPS800 BBK, Nikasil cylinders, Fully ported, Trail/Race cams, 36mm F4 carbs , UPP 36mm Intakes, Braided Fuel lines, Black & Silver IMS Powermadd Star Hand Guards, LC1 Digital Air/Fuel Gauge, Polished Shorty Shifter, Moose Billet Throttle, Ven's +4" Swing arm Ext., Everything powdercoated Black & White, Dyno Tuned @ 64.5 RWHP
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01-12-2008, 02:34 PM
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#4
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Premium Member
Feedback Score: 7 reviews
Join Date: Sep 2003
Location: Western Poconos (SOON)If they ever finish my new home..
Posts: 15,301
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My engine details are in my sig.
I'm running 142/145 and is running rich on my LM1 and John's Dyno. I'm still waiting for jets,it's been 6 weeks 
The engine is now apart and getting upgraded 
__________________
Team Green 04 V-Prairie, Ported AMR 730,XX cams,Digatron gauges,VFJ custom clutch with EBC bearing removed,V-force gears,VFJ X-over intakes, Looney Tuned Exhaust, programmable Dyna,30 shot of Boon,Brute Force Flywheel,Flexx bars,Rox Risers,ODI grips,ECT.
AMR 330 347 6800
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01-12-2008, 02:35 PM
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#5
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Premium Member
Feedback Score: 5 reviews
Join Date: May 2006
Posts: 4,824
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When I had the fst 715 with 36mm carbs I had 42 pilots 2 shims on the needles which is stock f4 shims. that measures out to .030 148 front 145 rear mains. it was around 45 deg outside when I was at the last drag race I went to. By the way when Glenn tore the motor down it was a tad lean. I have a fast meter that I had it tuned with back in the summer when I put the 36's on in the summer I was 145 front and 142 rear on the mains.
fst 715
stage three cams
stock boots
no head porting
900 ft elevation
no air box
k/n filters
outwears cover
muzzy pro pipe
100 octane turbo blue unleaded
fst/white bros cdi
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01-12-2008, 02:52 PM
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#6
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Premium Member
Feedback Score: 7 reviews
Join Date: Sep 2003
Location: Western Poconos (SOON)If they ever finish my new home..
Posts: 15,301
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Vader's stock engine is the only one that I ever heard of that ran better with a smaller rear main jet.
I never looked at what pilot jets came with the carbs,the needles that they have are adjustable and they are set one groove up from the bottom.
__________________
Team Green 04 V-Prairie, Ported AMR 730,XX cams,Digatron gauges,VFJ custom clutch with EBC bearing removed,V-force gears,VFJ X-over intakes, Looney Tuned Exhaust, programmable Dyna,30 shot of Boon,Brute Force Flywheel,Flexx bars,Rox Risers,ODI grips,ECT.
AMR 330 347 6800
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01-12-2008, 03:23 PM
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#7
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Premium Member
Feedback Score: 19 reviews
Join Date: Dec 2006
Location: Yelm, WA
Posts: 6,505
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FST 715
Stage 3 cams
AMR porting
Stock intakes
UNI Pod filters
Muzzy Pro
FST CDI
42 Pilot's
no shimmed needles
138/140 93 octane 142/145 U4.2 race fuel 157/160 megaphone 93 octane
tuned by TTD AKA PIPO
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KFX 798
AMR/ASR/BKP/Diamond/DG/Dynatek/Elka/Falicon/GT Thunder/JH Clutch/Muzzy Super Pro/WEB
YFZ 450
CP/CCP/FCI/Fox Evol DSC/Fox Podium/Hiper/Houser/JD/Nmotion/REM/Team axle
330'-4.6 660'-7.41@87mph 1320'-12.1@98mph
11secs coming soon...all motor baby!
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01-12-2008, 04:33 PM
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#8
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Premium Member
Feedback Score: 1 reviews
Join Date: Nov 2003
Location: Semi-Sexy....
Posts: 6,810
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I have no idea wtf is going on with the 764... but, I tried to run 165 front and rear today.... it was a turd. I went back to 172 front and 175 rear... ran loads better... Went up to a 178 front and 180 rear and ran just as good ir not better. This was racing confirmed.
__________________
04 kfx730- Fundy powered
04 kfx764- " "
04 kfx800 chain drive
04 kfx700 stock
04 kfx ? drag frame chain drive
05 Polaris sportman 90
04 Polaris predator 90
03 Polaris predator "troy lee" 90
99 traxter
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01-12-2008, 05:57 PM
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#9
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Premium Member
Feedback Score: 7 reviews
Join Date: Sep 2003
Location: Western Poconos (SOON)If they ever finish my new home..
Posts: 15,301
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Maybe the longer stroke has something to do with that 
__________________
Team Green 04 V-Prairie, Ported AMR 730,XX cams,Digatron gauges,VFJ custom clutch with EBC bearing removed,V-force gears,VFJ X-over intakes, Looney Tuned Exhaust, programmable Dyna,30 shot of Boon,Brute Force Flywheel,Flexx bars,Rox Risers,ODI grips,ECT.
AMR 330 347 6800
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01-12-2008, 11:01 PM
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#10
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Senior Member
Feedback Score: 1 reviews
Join Date: Jul 2005
Posts: 1,121
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730cc
proted heads stock valves
cwr 450 lift cams
big gun rev box
drag pipe
stock unported intake boots
42 piolets
130-135 jets
i believe the reason for so many diffrant jettings are the carbs not all have the same type of 36mm carbs and not all have the same needles so it kinda makes it a guessing game
__________________
2008 brute force black and red
high lifter springs for about 1.5" of lift
27" mud light xl's should have gone bigger
2005 kfx700 Project "GRAVE DIGGER"
In memory of Jimmy Cox gone 04/06/06 But never Forgotten
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