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jetting

  1. Cylinder Works 860 big bore help?!?!?

    Kawasaki Brute Force/Prairie/Bayou
    Last year I had to do an engine rebuild on my 06 brute force 750i. I decided to go with the cylinder works 860cc big bore kit from Rocky Mountain ATV. Since getting my quad back from my mechanic it seems like it actually has less power than my stock 750 had. Guessing it's not getting enough...
  2. another jetting topic

    Kawasaki KFX700 V-Force
    Alright guys first off I'd like to say this site has been a huge help so far getting my kfx dialed in to where I like it. I have a 2006 kfx 700 I got about a month ago and have done the more popular mods so far, pink primary spring, I cut the muffler open and removed spark arrestor/baffle for...
  3. Newbie from Boston ny. Need help!! 04 kfx 700

    New Member Introductions
    Hey guys I'm new to the site I'm looking for some help I have a 2004 kfx 700 I got on a trade deal needless to say the "broke" throttle cable concealed the fact the thing runs like crap.. So from what I can gather I have a stock sealed air cleaner with a k&n filter, dual pro circuit exhaust...
  4. jetting Keihin FCR 39 carbs

    Kawasaki KFX700 V-Force
    A few month ago i buy me Keihin FCR carbs. After i build me some stainless steel intakes i put the carbs on. But it dont run good. I dont look what jets are in because it isn't approximate correct. I only need some jet sizes where i should start. For the exact tune i have an AFR-meter. I have an...
  5. Low rpm stumble

    Kawasaki KFX700 V-Force
    Alright guys I've read hundreds of threads on this site and I know that most of you are pretty savvy with these machines, and I get most of my info here, but now I have a question to ask. I have a 2007 KFX 700 that I just did a bunch of work on, which I should have done little by little but I...
  6. Need help jetting!!!!

    Kawasaki KFX450/KFX400
    Ok so I have a 05 Kfx 400 that is all stock besides a full yosh exhaust. I am wanting to re jet my bike but I don't know what jet to use. I live in Phoenix, Az and I do all my riding up in the dunes at either Gordon's wells or Glamis. If anyone has any input or websites that were helpful to them...
  7. Carberator problems

    Kawasaki KFX700 V-Force
    Bought an '04 kfx700 recently. Dynojetted stage 1, slip on exhaust, kn air filter, pink spring. Raced my buddy's stock 09 kfx and lost every time. I think the jetting is off so I bought a "dial a jet" and installed. Wont go over 1/3 throttle without sputtering and hesitating badly on any...
  8. 07 brute force 750, new to this

    New Member Introductions
    I have an 07 brute force 750 stock with 27 swamp lite. I live in Canada Peterborough Ontario. I'm looking at getting a new hmf swamp series full or slip-on. Was wondering what are the factory jets in my bike and what would be suggested for the new exhaust.
  9. Carburetor Expert Needed

    Kawasaki Brute Force/Prairie/Bayou
    Been bringing my 02 P650 back from the dead. Upgraded to the 03 airbox with twin air filter, Napa hose mod, crossover intakes, dynatec box, HMF slip on Penland exhaust with ceramic coated pipes (factory front pipe). I am at 500ft above sea level and am currently jetted at 145 front and 148...
  10. Re-jetting!

    Kawasaki Brute Force/Prairie/Bayou
    I finally got my big gun slip on today guys. It sounds great but im getting alot of flames out the back and missing at low rpm's....jetting right? any suggestions on what size jets and maybe how much itll cost me at a shop?
  11. Jetting for Big Gun Exhaust

    Kawasaki Brute Force/Prairie/Bayou
    I am getting ready to install a big gun full exhaust on my 06 750. I am currently running with a Dynojet Stage 1, UNI filter and a 2 in snorkel. My current jetting is 138f 142r. From what I can tell I will need to go up in jet sizes. I am just looking to get an idea how much I may need to go...
  12. 12 hole mod, etc. now stalls with throttle

    Kawasaki KFX700 V-Force
    EDIT: Update. Go to page 4 for my current predicament. :( A little help needed here please! My bike is stock except for no toil super flow, yoshi duals, and the following.... I just did the 12 hole mod, jetted to 182/185, shimmed the needles, fuel screws 2-1/2 out, cut 3/4" of springs, &...
  13. Another Jetting recommendation needed

    Kawasaki KFX700 V-Force
    Alright you carb gurus. My Yoshi duals are in the mail and I need a jetting recommendation for the following setup: Elevation: 2,389 ft. Yoshi Duals with exhaust crossover No Toil Super Flo Kit (similar to Twin Air) link: No-Toil Industries KFX700 V FORCE (2006-2011) SUPER FLO KIT 12 hole mod...
  14. Jetting help needed (ANOTHER jetting thread!)BF820SRA

    Kawasaki Brute Force/Prairie/Bayou
    Hi all. Need some jetting help for my project Brute. I'm hoping to find someone who's done a similar build and can share some of their ecperience with me. I have an 05 BF650SRA. Now with a set of Fundy 820 jugs,+1 valved ported polished heads, Fundy race cams, Muzzy full system, Dynatek...
  15. Help with new(to me) bike

    Kawasaki Brute Force/Prairie/Bayou
    I have a '06 750 I picked up a few weeks ago. It has some mods/upgrades that I'm just starting to get a handle on. I need some input/advice about these mods. Equipment- '06 Brute Force 750, HMF Penland Pro slip on exhaust, Dynojet mod to carbs. My concerns and questions are about the jets in...
  16. What is the correct pilot jet type???

    Kawasaki KFX450/KFX400
    I have a 2004 KFX 400. Anyone know what the correct pilot type is, the vm28/486 or TMX36 / N224.103? They both look the same the only diff is the tube with the holes is wider on the TMX style. Ive been to a few local dealers and they have no idea why the ones they say are the correct jet are...
  17. carbs blow.need help

    Kawasaki Tecate
    i just took a 34mm keihin pj series off my t4 and put on what i thought was a pw series mikuni.WRONG! the bike runs good but need to get a bigger pilot jet but can't find an exploded view of this carb and there is no model number on side. only thing it says is v33 then below that an 8 .lost...
  18. ned some advice on carb

    Kawasaki Tecate
    i got a 39mm keihin for my t4 and would like to jet it with the right size jets to run on this 250 any advice.also got a 34 keihin off a 250r currently on the t4 any advice on jet size for this carb
  19. Spark Plug

    Kawasaki KFX450/KFX400
    I thought my jetting ran pretty good. Except today I checked the spark plug and its dry carbon covered. The bike is hard to re-start after a stall (Coughing and popping). Where do I look first, second, third....? Thanks:confused:
  20. 2007 Prairie 360 with HMF, K&N, Jetted poping bad.. HELP!

    Kawasaki Brute Force/Prairie/Bayou
    Ok I put a HMF pipe, a jet kit with a 160 main which was the biggest that came with the kit. "155" is the stock main. Changed the needle to the Dyno jet needle set it where it said to put it. Etc etc. I have a K&N with a pre filter. I just put the silencer in the HMF as well, but this did...
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