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This is a discussion on Whats the best set up for road and trail within the Kawasaki KFX700 V-Force forums, part of the Kawasaki ATV Performance / Maintenance / Technical category; Hi Guys Whould like a little advice on what would be the best way to go with my KFX 700. The engine is stock at ...
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| Kawasaki KFX700 V-Force Kawasaki's big-bore, V-twin sport machine! |
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#1 |
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Junior Member
Feedback Score: 0 reviews
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Hi Guys Whould like a little advice on what would be the best way to go with my KFX 700.
The engine is stock at the moment its an 05 had it since new. Little bit of back ground on me so you get a better idea on what I'm after and need. I Live in Perth Western Australia in 2002 got crushed between bike ZX12 and truck which broke my back. I'm now a paraplegic T8-T9. Long story and not why I'm here. Life goes on. My Bike is licensed as a wheelchair (bike being KFX 700) I ride it quite alot on the road around the city. Get a shit load of looks and stares as quads here genraly are not aloud on the road. I also do heaps of trail riding and hit the dunes 3 or 4 times a year so not realy alot hit the trails most weekends and on the road several times a week. The bigest down fall of the bike on the road is its not fast enough and is reving too high at 100km/h. Sorry don't know miles/h only km/h I NEED MORE POWER. What I want is to be able to lunch my mates in the trails, keep up with some pretty powerfull machines on the road. I still have my ZX12 and have eyed off the engine quite a few times thinking on how it would look fitted up in the KFX ( now that would be a bullshit briliant machine set up) But would also make it no longer road worthy so not an option here. I.'d like to be able to lift the front wheels at 100km/h if I so wanted too and I do ![]() Thing is I go bush alot by myself. So reliability is the most important. If the bike shits the tin I can't get off and walk home. I want as much power as I can get without buggerising the reliability of the bike. I love this thing have floged the living shit out of it and it has never once let me down EVER in 4 years. Now thats a bloody good bike. I already have the twin Yoshi pipes on it K&N and jetted thats it. Time to put some power into it. Been reading alot of threads about big bore kits. How would a 730 kit stroked to a 770 or something like that go. Would I get reliability out of a 900 kit or 840. Thanks in advance for any help. |
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#2 |
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Senior Member
Feedback Score: 3 reviews
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another problem with putting the zx engine would be the shiftong. vforcejohn has a zx10 turbo powered v, its SICK!! maybe see if fundy could set u up a turbo engine. stock bore would still fly.
if you really would want to do an engine swap maybe try and find the 1000cc two stroke arctic cat snowmobile engine!! that would be a fun ride. good luck with everything
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04 kfx700 kawi green, muzzy pro, k&n , polaris white spring, prm desert bumper/grab bar, 12 hole/ms mods, 5/64 mains, 42 pilots, carb mods, dynatek, 6* key, rox anti vibe risers, tag x5 bars, Camo's shorty shifter 05 marble orange kfx700, theft recovery project!! aka " voodoo quad ": fps, amr, lte's . . . need to get it torn down, machined and put together 02 prairie 650, camo ,27" mudzillas,25" holeshot atr's, currently not running |
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#3 |
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Premium Member
Feedback Score: 8 reviews
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No experience with the really big bores, but I bought my FST800 used and it has been totally reliable. I could probably increase HP with bigger carbs and a different exhaust, but it's got all the power I need right now. To increase top speed, you can install a set of German Gears in the rear and another set internally. A modified clutch also helps. However, you will probably want to upgrade the shocks and add a steering stabilizer to handle the power & speed. Really, the only limit is your wallet.
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![]() FST 800, stage 3 cams, 38mm carbs, Big Kev's intakes, VFJ Stage 3 spidermod, LTE duals, AMR coils, Dynatek CDI, Fluidyne radiator, SPAL fan, Venforcer radiator guard & stator cover & dash, Mike Walker oil cooler, billet catch can & gas cap & dipstick, pc'd frame, Jettrim seat cover, TribalCarbonfiber scoop, TrailTech lights, Elka Elites, Penland tie rods, WER stabilizer, Lonestar hubs, Durablue axle, +4.5" swingarm & German gears, QuadBoss armor, Warn winch & Amsteel cable, Razr2's on Hiper beadlocks, PRM rack & SideBars, Armadillo bumper, FST clutch cover, Fasst bars, Cycra ProBend handguards on BRP mounts, ODI Rogue grips, ASV shorty levers, TerryCable throttle, Hermann Racing +1 stem, Rox risers, Hurst shorty shifter, IMS tank, Cobra tank guard, Garmin E-trex GPS & RAM mount, Maddog mirror, chrome LED taillight |
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#4 |
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Premium Member
Feedback Score: 1 reviews
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i would go with a 800+ big bore engine, i wouldnt bother stroking an engine untill you get the most bore size you can first.. a 770 big bore will work better than a 770 stroker.. also ditch the yosh pipes and get a muzzy pro.. give ray at fundy a call, he can set you up with what you are looking for out of your V.. very reliable engines. 1-902-893-3966
if you havent machined your clutch for overdrive, do it.. an .080" OD will get you alot more speed, and an aftermarket CDI will give you more RPM to play with after you get your engine built. |
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#5 |
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Junior Member
Feedback Score: 0 reviews
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i would go with a 800+ big bore engine, i wouldnt bother stroking an engine untill you get the most bore size you can first.. a 770 big bore will work better than a 770 stroker.. also ditch the yosh pipes and get a muzzy pro.. give ray at fundy a call, he can set you up with what you are looking for out of your V.. very reliable engines. 1-902-893-3966
if you havent machined your clutch for overdrive, do it.. an .080" OD will get you alot more speed, and an aftermarket CDI will give you more RPM to play with after you get your engine built. Why the muzzy pro. Its a single I love the look of the twins. Is there a better set of twins out there that work as well as the muzzy pro. |
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#6 |
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Member
Feedback Score: 0 reviews
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Perth here too. I think I met you at the Royal Show last year. Scootamoto right? There is a taller gear set that can be ordered for our kfx's, a german set. Plenty of posts on here about them so part numbers should be on here somewhere, maybe someone will chime in. I dont know if Kawasaki Australia will be any help as they arent very forthcoming about overseas parts. Should be fairly easy to get hold of online tho. I have been eyeing up Ducati 916 pistons to do a big bore conversion but havent physically measured any up yet. I do know they have the same stroke and piston pin diameter tho, just unsure on deck height. Would need resleeving but shouldnt be too much of a drama. I'm not sure if that is what vforcejohn used in his 916. I have heard only good things about vforcejohns cut clutches so they are an option for more road speed. Means being without a clutch for a few weeks tho. Bummer when the sand is so good up at Lancelin. Was up there last weekend and it was nicely packed down with the rain we have had. Fantastic.
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2006 V Force - Full Muzzy system, 12 hole mod, 182 mains, shimmed needles, spark boot mod, stock 750i primary spring, nerfs, Acewell dash, removed park brake, Polisport h/guards, Viper ATX78 rear tyres Last edited by jimmynz; 07-04-2009 at 07:57 AM. |
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#7 |
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Member
Feedback Score: 0 reviews
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You could always fit up some big tyres on road rims for when you head on the road and swap them over for the trail.
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2006 V Force - Full Muzzy system, 12 hole mod, 182 mains, shimmed needles, spark boot mod, stock 750i primary spring, nerfs, Acewell dash, removed park brake, Polisport h/guards, Viper ATX78 rear tyres |
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#8 |
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Senior Member
Feedback Score: 2 reviews
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I have heard only good things about vforcejohns cut clutches so they are an option for more road speed. Means being without a clutch for a few weeks tho. Bummer when the sand is so good up at Lancelin. Was up there last weekend and it was nicely packed down with the rain we have had. Fantastic.
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2002 665 FPS Prairie FPS Trail kit - 12:1 comp due to 1mm shaved off the heads Mild porting Crossover intakes Modded airbox Full Muzzy Dalton springs and weights Other stuff |
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#9 |
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Member
Feedback Score: 0 reviews
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Would be nice to support the site sponsors tho.
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2006 V Force - Full Muzzy system, 12 hole mod, 182 mains, shimmed needles, spark boot mod, stock 750i primary spring, nerfs, Acewell dash, removed park brake, Polisport h/guards, Viper ATX78 rear tyres |
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#10 |
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Premium Member
Feedback Score: 1 reviews
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i would go with a 800+ big bore engine, i wouldnt bother stroking an engine untill you get the most bore size you can first.. a 770 big bore will work better than a 770 stroker.. also ditch the yosh pipes and get a muzzy pro.. give ray at fundy a call, he can set you up with what you are looking for out of your V.. very reliable engines. 1-902-893-3966
if you havent machined your clutch for overdrive, do it.. an .080" OD will get you alot more speed, and an aftermarket CDI will give you more RPM to play with after you get your engine built. Why the muzzy pro. Its a single I love the look of the twins. Is there a better set of twins out there that work as well as the muzzy pro. |
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