valve adjustment - Kawasaki ATV Forum
Kawasaki KFX700 V-Force Kawasaki's big-bore, V-twin sport machine!

 
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post #1 of 7 Old 03-17-2008, 01:42 AM Thread Starter
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A friend and I both have 2007 kfx700 they were bought about two months apart they are both ridden about the same but here is the problem. My friends bike has a problem with valve adjustment when we check the valve lash for the first time several months back the valve lash on the intake valve was to tight. After adjusting the valves he rode the bike for about a month and noticed it was getting hard to start so he get the valve adjustment and once again it had taken all the lash out on the intake valves. We have repeated this process two or three times in the last six months. Can anyone tell why or how the intake valves can losing valve lash. On my bike we check the valves and have not had to make any adjustments.

'07 KFX 700 (K&N FILTER,HMF daul exhaust, 12 hole mod, EPI MAROON SPRING and lowered 2 inches)
'07 YAMAHA WOLVERINE 450 4X4
'07 RAPTOR 350
'07 RAPTOR 80



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post #2 of 7 Old 03-17-2008, 03:08 AM
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It has been a problem on here a few times were the valves actually sink into the heads. If you can look and compare the intake valves stems and see if one of the stems are higher than the other. This usually is the only visual way to tell without pulling the heads and checking for sure. I would almost bet this is what is happening as it has happened to others, not common but has happened.

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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post #3 of 7 Old 03-17-2008, 09:15 AM Thread Starter
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thank you for this info. I will check to see if that is going on and if so what is the next step to correct this problem.

'07 KFX 700 (K&N FILTER,HMF daul exhaust, 12 hole mod, EPI MAROON SPRING and lowered 2 inches)
'07 YAMAHA WOLVERINE 450 4X4
'07 RAPTOR 350
'07 RAPTOR 80



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post #4 of 7 Old 03-17-2008, 02:12 PM
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Quote:
thank you for this info. I will check to see if that is going on and if so what is the next step to correct this problem.
[/b]
Mine is an 07 as well and it is doing the same thing. I adjusted mine again today and it seems to run fine. I am gonna just keep adjusting until there isn't any adjustment left. I have adjusted mine atleast 6 times since I've owned it.

2007 KFX700 12 hole mod, twin air powerflow kit, 180f & 182r jets, polished slides, pilot screws 2 and a half turns out, .020 washer on needles, polished HMF duals, Almond spring with 1 shim, prm bumpers, proarmor nerfs, ODI grips, PWR radiator, 20" razor 2 rear, 22 Razor 2 front, 450R hubs, ITP baja wheels, Teflon skid plates, 450R shocks, adapt graphics, Maier carbon fiber hood.........."soon to come" 715 stage2's, VFJ stage 3 clutch & steering stabilizer

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post #5 of 7 Old 03-17-2008, 02:56 PM
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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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post #6 of 7 Old 03-17-2008, 04:01 PM Thread Starter
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well it sounds like head work and valves are in the future any suggestions on who to use and ball park prices?

'07 KFX 700 (K&N FILTER,HMF daul exhaust, 12 hole mod, EPI MAROON SPRING and lowered 2 inches)
'07 YAMAHA WOLVERINE 450 4X4
'07 RAPTOR 350
'07 RAPTOR 80



GOD BLESS AMERICA
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post #7 of 7 Old 03-17-2008, 04:11 PM
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Quote:
well it sounds like head work and valves are in the future any suggestions on who to use and ball park prices?
[/b]
AMR is the best on this forum.
Fundy`s ok too.

Trail//FST730,
,stock porting/6*key/fststg2cams/62hp/stock swinger/ daulton blue 2-56`s/stock secondary

clutch cut [vfj stg3w/spidermod]
Muzzy Superpro.
elka`s ,, plus many add on`s

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built and tuned by VFJ at interstate motorsports
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