The KTM300 Thread

Discussion in 'Thumpers' started by GasGas300, Jan 11, 2010.

  1. guns_equal_freedom

    guns_equal_freedom Long timer

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  2. Spino

    Spino Adventurer

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    Is it common to have to replace reed valve petals? I’ve realized the boot between the carb and the reed is worn out on my 2006 and I’m wondering if I’ll need to do the reeds too.
  3. renogeorge

    renogeorge Let's ride!!

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    Probably. Check for fraying, breaks, warpage...
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  4. guns_equal_freedom

    guns_equal_freedom Long timer

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    Pull the reed cage and see if the reeds are OK.
    Follow the advice of the previous poster (above my post) plus if you can see light between the reeds and the reed cage they are done.
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  5. kjclark7

    kjclark7 Long timer

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    If they look like this, get vforce 4r. 20161218_153714.jpg
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  6. alvincullumyork

    alvincullumyork Ol Two Flags Supporter

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    Is a small gap really an issue? I get a warped cage is a no no along with broken or frayed reeds.
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  7. Mountainhound

    Mountainhound Long timer

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    My understanding is you don't wsnt to be able to see any light, you want a complete seal.
  8. cal08

    cal08 Been here awhile

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    Slavens has a vid somewhere where he says it's not a big deal. I think by and large that the 2T is at heart a very rudimentary motor, with similar levels of efficiency.

    This falls into 100 percent your call my friend.

    I would swap it out, but that's just me - I enjoy tinkering and i would be curious if I could tell the difference as some say. Also, if I didn't spend the cash, the SO would buy something else with it, a pillow or picture frame with gold trim, or fake flowers......
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  9. RideFreak

    RideFreak Torque Junky

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    Most of the time the back pressure will cause those small gaps to seal but you never really know if it's leaking a little, at least if there's no gaps you can be pretty sure it's sealing. Id swap the OE reed valve out with Vforce 4 if the stock one was questionable.
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  10. P 0 P E Y E

    P 0 P E Y E Bald rider Supporter

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    Preaching to the cryer

    Another epic day on my 300. Loving it more each ride.

    In the tight single track the bike has all the boxes checked.

    The clutch is freaking awesome - one finger actuated hyperspace surge of power or traction on demand it’s mind bending
    Loft the front wheel or get power in any gear

    Tons of power but totally at will

    Suspension- of the Gods

    Super light reacts to rider weighting, de-weighting and position.

    After decades of sloppy seconds, I am so glad I chose this bike to be my first new bike I’ve purchased.

    Sorry for the Rant...as you were
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  11. P 0 P E Y E

    P 0 P E Y E Bald rider Supporter

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    Now if I could only figure out how to get the training wheels off.
  12. BikePilot

    BikePilot Long timer

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    Right on popeye!

    Regarding reeds, stock ones in good shape are fine imo. They are a wear item on any two stroke and I generally replace when I do a top end. If replacing the whole cage I usually go for a boysen rad valve as they seem really well made and less fiddly than the vforce/stock style. They've also got +5hp from pure nostalgia factor for this 1990s two stroke mx racer :). In all seriousness I've still got the stock setup in my 19 tx and I couldn't imagine it running any better. Popular wisdom holds that boysen rad valves add a little up top and v force/stock ads a little response off the bottom. I haven't tested back to back to confirm.
  13. guns_equal_freedom

    guns_equal_freedom Long timer

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    A new reed and reed cage made a world of difference on my 17 XCW 150.
    The Vforce I replaced it with had a tight reed to reed cage seal.
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  14. kjclark7

    kjclark7 Long timer

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    I put v force in my 14 Berg and my 18 300xcw and I noticed a positive difference in both. Both stock cages/reeds had slight gaps in them where the vforce was tight with no gaps.
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  15. kjclark7

    kjclark7 Long timer

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    I raced with the tusk tire this past weekend and overall it performed well. It was mostly a rock race and the tire held up in my opinion.
    Traction was never an issue but one complaint I had was braking in the softer terrain. I was over shooting corners and locking up the rear when braking hard. Now I heard a few other guys complaining about the same thing so I don't know if it was a tire issue or the terrain that was causing it.
    There was no mud so I can't comment on how the tire performs there but I suspect it won't be a great mud tire.
    Here's a pic of the tire with 90 miles on it. 20190909_094635.jpg 20190909_094627.jpg
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  16. SHEP_5

    SHEP_5 Been here awhile

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    my V force reeds have some light gap and run excellent
  17. cal08

    cal08 Been here awhile

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    Appreciate the field report. *raises glass of current fav*
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  18. Spino

    Spino Adventurer

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    Radiator flushing question: After draining out the old fluid, do you rinse it out with any sort of cleaner or just water? Or, do you just put the new coolant in and bleed it?
  19. scudrunner82

    scudrunner82 combustion addict

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    Depends how anal you are! Either way will do the job. If you flush it, just use clean water.
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  20. kjclark7

    kjclark7 Long timer

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    I drain and add new.
    But if you do flush, use distilled water.
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