Brute Force - Prairie 650 Valve Adjustment Information: Tinging, Pinging, Backfiring, Hard to Start

Ойын-сауық

This video explains how to check and adjust valves on the Kawasaki Brute Force or Prairie 650,
including how to find Top Dead Center TDC and Compression Stroke. Symptoms of incorrect valve adjustment include: Chatter in top end, hard to start, no power, backfiring through exhaust or carburetor.
CREDITS: www.nyrocatv.com/techtip.cgi?v...
More at our website: everythingatvutvreviews.com/

Пікірлер: 50

  • @jameswatts4010
    @jameswatts40105 жыл бұрын

    I would like to add a suggestion for a more accurate valve adjustment on this 4 wheeler. Being that the both valves are actuated by a single, forked rocker arm, you should use a feeler gauge under both sides at the same time. That will keep the rocker arm from "rocking" from one side to the other, making the valve that you just adjusted change clearance. You should at least go back and check the first one that you adjusted to confirm that the first side did not change. I am referring to both intakes OR exhaust at the same time. Very good video. Precise and right to the point. Keep up the good work. You are doing the 4 wheeler community a good service. Regards

  • @everythingatv-utv-reviews3565

    @everythingatv-utv-reviews3565

    5 жыл бұрын

    Thanks for your input on the adjustment, appreciate the comment!

  • @jameswatts4010

    @jameswatts4010

    5 жыл бұрын

    @@everythingatv-utv-reviews3565 I didn't check to see who posted this video. I should have known who it was when I saw how good it was.

  • @mikealdag7309
    @mikealdag7309 Жыл бұрын

    Thank you for this , I just did mine for the first time, what a pain in the ass to get to ! Thanks again for this video

  • @munnymike319
    @munnymike3195 жыл бұрын

    Great video dude! You saved my quad from the scrap yard. She runs great now! Thanks

  • @everythingatv-utv-reviews3565

    @everythingatv-utv-reviews3565

    5 жыл бұрын

    Awesome! Thanks for the comment and many more miles on your Brute Force!

  • @KGRICK1
    @KGRICK1 Жыл бұрын

    pro tip, when adjusting leave lock nut just loose enough to be able to turn adjustment screw , this will make it much easier to maintain the clearance , if you completely loosen the nut the adjustment will change when you lock it down requiring several attempts.

  • @soundmandave21
    @soundmandave215 жыл бұрын

    Thanks for the video, this is on my weekend to-do list, along with the carb cleaning.

  • @everythingatv-utv-reviews3565

    @everythingatv-utv-reviews3565

    4 жыл бұрын

    Thanks for the comment! Subscribe to our channel for more tech tips and reviews. kzread.info/dron/ArRwA4SAnCqF6NsuPayhEA.html

  • @dennisjj6529
    @dennisjj65296 жыл бұрын

    Fantastic video!! Great walk through and you're a great communicator. Thank you.

  • @everythingatv-utv-reviews3565

    @everythingatv-utv-reviews3565

    6 жыл бұрын

    Dennis JJ thanks for your comments!

  • @StevesDIYProjects7

    @StevesDIYProjects7

    5 жыл бұрын

    WRONG he teaches WRONG way to do it. doesnt use a tool to hold the jack screw while tightens jack nut.

  • @vincentkreiss3759
    @vincentkreiss37594 жыл бұрын

    hi..I have 2- 650 Kawasaki paraie 4x4..just bought them so I figured I'll do oil change spark plug and air filter and now it pops from carb..is it because I need to adjust the valve clearance???

  • @colonialroofingofnorthcaro441
    @colonialroofingofnorthcaro4413 жыл бұрын

    What year model is the 4 wheeler your working on, tks

  • @josseprossi6837
    @josseprossi68373 жыл бұрын

    would you have any idea what size the kawasaki kvf 750i 2008 adjustment is made of ?? Exaus and intake? Please help me . I have problems with backfire

  • @n0ukf
    @n0ukf4 жыл бұрын

    I hope I just need a valve adjustment and not replaced rings. Will try this while waiting for a compression tester, Dad's old one won't fit down these narrow plug holes.

  • @automotivekid3026
    @automotivekid3026 Жыл бұрын

    It also works on arctic cats like mine that has the kawasaki 650cc V-twin motor

  • @montiraruba2831
    @montiraruba28313 жыл бұрын

    Anyone know where the Serial number/VIN # is located on the Brute Force 750 (2005-2007)?

  • @andyhug13
    @andyhug132 жыл бұрын

    Hello. 0.05 and 0.08 is in inch or in metric?

  • @grandcrappy
    @grandcrappy Жыл бұрын

    Is it worth having a twin, well-engineered but there are so many parts?

  • @letaurusw
    @letaurusw3 жыл бұрын

    Great video!!! Was very helpful

  • @everythingatv-utv-reviews3565

    @everythingatv-utv-reviews3565

    2 жыл бұрын

    Glad it was helpful! Thanks for the comment!

  • @GusgusA1
    @GusgusA18 жыл бұрын

    My 750 has a small intermittent backfire. Could this be the issue?

  • @MrDavidelliottjr

    @MrDavidelliottjr

    4 жыл бұрын

    Yes

  • @jushinator33
    @jushinator337 жыл бұрын

    Can you upload that 5 step process? The link in the description does not work

  • @everythingatv-utv-reviews3565

    @everythingatv-utv-reviews3565

    7 жыл бұрын

    Difficulty rating 7.5 out of 10 (the feeler gage was a bit hard to get in the tight spots). Warning the repair manual doesn't even explain the fact that the camshaft rotates 180 degrees for every turn of the cranshaft (fundamental principle of any 4-stroke). So, the engine is only on TDC firing at every other turn of the crank. The exhaust valves are not closed all the way at TDC intake. This is why you must be sure the engine is on TDC firing, not TDC intake. If you adjust the valves when the engine is not on TDC firing, your valve adjustment will be way off and it will not run well and wear out your valvetrain. -You need a feeler gage, flathead screwdriver, and a box end metric wrench (10mm). Check when engine is at room temperature (68F of so) otherwise the different expansion coefficients of the different types of metal involved will completely invalidate your valve adjustment. 1. Remove front plastic (includes top rack), battery case, right water pipe bolt if necessary, valve adjustment caps, recoil starter (or alternator cover, in the case of the 2008 BF). 2. Remove timing inspection plug (slotted plug, left side of crankcase near recoil starter). It may be too tight for a big screwdriver. If it is too tight, you might try a vise grip on the outside edge of it. 3. Turn crank counter-clockwise using a wrench on the crank bolt (under the recoil). Turn it counterclockwise until the TF mark shows up (the top part of the T lines up with a notch in the hole). Note that if the cylinder is at the end of the compression stroke all four valves will be closed (you can feel clearance in the rocker when the valves are closed). If the engine is at the end of the exhaust stroke, some of the valves will be partway open (the exhaust I think), and you need to turn it counterclockwise one full revolution until it is at the end of the compression stroke (back to same mark). 4. Check and if needed adjust all four valves on front cylinder to: Intake 0.10-0.15mm (.0039"-.0059") cold Exhaust 0.20-0.25mm (.0079"-.0098") cold * To adjust a valve, loosen locknut, turn center screw left for looser, right for tigher. Proper clearance is achieved when feeler gage can slide between valve and adjusting screw with slight resistance (not loose, not tight). I like to use a go-nogo gage made for motorcycles. 5. Turn the crank counter-clockwise until the TR lines up in the timing hole and check/adjust the valves in rear cylinder. Make sure all valves are closed, because this it is 270 degrees CCW from TF. If some of the rear cylinder's valves are open (rocker is pushing them open), you may have turned the crank an extra 360 degrees after you adjusted the front valves or maybe you didn't do the front cylinder on TDC firing. 6. Put stuff back together

  • @jushinator33

    @jushinator33

    7 жыл бұрын

    Thank you

  • @theycallmerebel

    @theycallmerebel

    4 жыл бұрын

    Everything ATV-UTV-Reviews j

  • @mb837904
    @mb8379047 жыл бұрын

    have an 06 Prarie 360 that will foul out a plug in an hour of riding. been doing this for 2 years. could this be the problem?

  • @everythingatv-utv-reviews3565

    @everythingatv-utv-reviews3565

    7 жыл бұрын

    Michael, has your Prarie been jetted, any other mods or completely stock?

  • @jonlund3161

    @jonlund3161

    6 жыл бұрын

    Too tight or No Valve clearence gives that symptom. Could also be other things. Check your compression.

  • @dh5254
    @dh525427 күн бұрын

    My book says Valve Clearance (when cold) Exhaust: 0.20 ∼ 0.25 mm (0.0079 ∼ 0.0098 in.) Inlet: 0.10 ∼ 0.15 mm (0.0039 ∼ 0.0059 in.) your valves are super tight 😳😳😳😳 well ima try it on mine and lean toward the tight side

  • @sebastiengauthier2785
    @sebastiengauthier27854 жыл бұрын

    Is it the same adjustment for a 750

  • @everythingatv-utv-reviews3565

    @everythingatv-utv-reviews3565

    4 жыл бұрын

    The process should be the same, although check the valve clearance settings for the 750, not sure if they are the same. Thanks for the comment!

  • @troyhammond1405
    @troyhammond14054 жыл бұрын

    even on the hottest days my 650 has to warm up atleast 20 mins before i even touch the throttle or it dies. any info on why?

  • @everythingatv-utv-reviews3565

    @everythingatv-utv-reviews3565

    4 жыл бұрын

    Is the 650 set on ON or RES fuel tank setting?

  • @troyhammond1405

    @troyhammond1405

    4 жыл бұрын

    @@everythingatv-utv-reviews3565 on.

  • @bizaicruz9087
    @bizaicruz90872 жыл бұрын

    Me interesa el tiempo

  • @pinefighter1
    @pinefighter13 жыл бұрын

    Love your videos,very informative. I have a 2002 Kawasaki prairie 650 runs good and idols but it won’t decelerate above 15mph....any ideas would be appreciated, thanks

  • @everythingatv-utv-reviews3565

    @everythingatv-utv-reviews3565

    2 жыл бұрын

    Sorry about the late response, did you find out the issue?

  • @pinefighter1

    @pinefighter1

    2 жыл бұрын

    @@everythingatv-utv-reviews3565 No worries life is hectic, it was the throttle cable and carb.adjustment....thanks. N.J.

  • @cnw-jd9tt
    @cnw-jd9tt Жыл бұрын

    I must have done it wrong, it wasn’t ticking before but now it’s ticking really Bad

  • @speakable5733

    @speakable5733

    8 ай бұрын

    I have same problem

  • @cnw-jd9tt

    @cnw-jd9tt

    8 ай бұрын

    @@speakable5733 i ended up re doing it and now it ticks just not as bad. some ticking is normal.

  • @GusgusA1
    @GusgusA18 жыл бұрын

    I mean a small backfire through the air cleaner.

  • @everythingatv-utv-reviews3565

    @everythingatv-utv-reviews3565

    8 жыл бұрын

    Gus, this "could" be your issue. It's a good place to start as it will only cost you some time to check. Kaw's make incredible power, but are notorious for valves tightening up.

  • @GusgusA1

    @GusgusA1

    8 жыл бұрын

    +Everything ATV-UTV-Reviews there is none further than a mechanic than I but a great vid to follow. Thank you.

  • @StevesDIYProjects7

    @StevesDIYProjects7

    5 жыл бұрын

    im sure ya found out. and i bet was the accel pump in the carb.

  • @tallerrdg8409
    @tallerrdg84097 жыл бұрын

    L

  • @jesserousseau2481
    @jesserousseau2481 Жыл бұрын

    My book says .20exhast .10 intake

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