KLX300 thread

Discussion in 'Thumpers' started by ironbrewer, Jun 28, 2008.

  1. rube

    rube Been here awhile

    Joined:
    Oct 10, 2004
    Oddometer:
    119
    Location:
    Pinehurst, NC
    Hi,

    I recently bought a used clutch lever and it came with a clutch cable for a KLX300. I do not have a KLX so don't need it. The seller said it was from a 2002 KLX300, though I do not have anyway to verify that.

    Send me a PM if you want it and I'll put it in the mail.

    Thanks,

    rube
  2. Yokomo

    Yokomo Dirt Rider

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    I'm looking for an aftermarket exhaust for my klx300. Anyone have one you'd consider selling?
  3. not ned

    not ned Adventurer

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    no but jerry leighton has the best one - it's the stroker big header and very nice can you van get with a quiet tip - the best setup I found to work really well - much power increase.
  4. teambft

    teambft teambft

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font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} </style> <![endif]--> Got a KLX300 over the weekend.

    Rich on start up; Spark plug is black, starts poorly; starts better with wide open throttle.
    Was dripping fuel from vent lines sitting in garage; float bowl level is likely off.
    Mikuni 36mm pumper carb.
    Uni filter, snorkle removed, stock pipe with a power tip
    Current jets are a 132.5 main and a 12.5 pilot.
    Riding is typically 800 feet to 1800 feet elevation.


    Looking for jetting suggestions and needle clip position recommendation.
    Also, what is proper float bowl level and process for measuring/adjusting?


    Thanks!!!!!!!!!
  5. Yokomo

    Yokomo Dirt Rider

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    Different carb - best to ask on kawasakiforums . com
    Ask in the KLX250 section.
  6. not ned

    not ned Adventurer

    Joined:
    Jun 8, 2008
    Oddometer:
    91
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    Boulder
    sounds like the needle / seat is stcking and / or not sealing well - if you take the carb apart clean the needle / seat then confirm the bowl level.

  7. teambft

    teambft teambft

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    Thanks!
    Yeah, you might be correct! Float height seems okay on initial measure. I ordered jets, needle/valve, etc. Will rebuild and give her a go.
  8. uranys

    uranys Been here awhile

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    Oct 11, 2007
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    I'm intrigued by the klx, there are a few in my area for reasonable prices and I was wondering if someone whose plated theirs can comment on how it does on the street.

    I'm thinking about replacing my plated xr600r with a klx. I don't do many long trips, On the street it would mostly be used for commuting (short, like 20 miles round trip) with the occasional 50 mile jaunt. Off road would be mostly single track which is not the xr's forte.

    So is a plated klx for me?
  9. teambft

    teambft teambft

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    My two cents:

    I've owned two, one was street legal.
    Legendary bikes (like your XR) in terms of a do-it-all and durability.
    The one only serious item you want to be sure is resolved is the starter gear - they DO fail.
    The bike with a Mikuni pumper is amazingly different than the stocker - unbelievable upgrade in performance
    On the road? Like any other semi-dual sport bike. Depends partly on tire selection. I would balance the wheels. It hums along just fine. Bike is light. I really enjoyed it in tight woods....its nimble. Depending on your type of riding, like every other machine, gearing will make a big difference.
    Great fuel mileage as well.
    Good luck - they're great bikes. Me personally, for similar price, I'd go with a DRZ400
  10. TNC

    TNC Candyass Camper

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    I have an '06 KLX250S. It is so much like the KLX300 that you can basically compare the two on equal terms in regards to reliability, streetability, and performance. The e-start on the 250S is the biggest difference. I have the 300 cylinder on my KLX. For commuting the KLX does fine as long as you're not having to do a bunch of 70 mph highway driving. As Teambft stated, gearing will dictate most of what the bike will do and how you want to use it. In stock gearing setup it will do highway speeds, but IMO it will suck for any serious off roading. Even though it's a 6-speed tranny, it's still not a powerhouse, and you have to gear for conditions. I run 13/47 which is basically like the 14/50 stock 300 gearing. I don't feel comfortable cruising at anything above an honest 55 mph in regards to engine rpm.

    I've had lots of racing dirt bikes for racing enduros over the decades, and the KLX ain't no race bike. But it and the WR250R Yamaha may be a couple of the very best true DS bikes that have some real potential to ride almost anywhere off road. It isn't a good "5 miles of Hell" bike or suited for a "Last Man Standing" event, but with a few suspension tweaks, a good exhaust, proper jetting or pumper carb, and you can ride somewhat comfortably on pavement and go most anywhere off road. And you won't be wearing it out anytime soon or having to service it constantly. I am in the process of installing a TM36 Mikuni pumper on mine right now. This is a somewhat standard mod for the KLX and is almost plug-and-play due to the large number of riders who've done this mod to theirs, so the carb fitment and jetting is almost a known standard now.
  11. uranys

    uranys Been here awhile

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    I've got some seat time on a drz, great bikes and all, better on road than the xr, but worse off road (for what I ride anyway).

    Thanks for the feedback. At a minimum I would be doing doing exhaust, pumper carb, and suspension, and possibly a big bore kit.

    I do have a dedicated race bike, so I don't plan on racing it, just using it to commute and recreational trail riding.

    As far as the suspension goes, I see people doing gold valves or swapping on kx forks. How's the shock? I see it's got compression and rebound adjustment, does it need work besides springing for my weight?
  12. Yokomo

    Yokomo Dirt Rider

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    I like my 300 alot! I had a DRZ E model that was tagged and had the Yosh 450cc kit, full yosh exhaust, racetech, and much more. I sold the DRZ-E because the KLX is SO much better as a trail bike and no worse as a road bike.

    http://www.youtube.com/watch?v=3hSrj4UTPws
  13. not ned

    not ned Adventurer

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    Jun 8, 2008
    Oddometer:
    91
    Location:
    Boulder
    Pumper Carb Questions -

    for you guys that have done the pumper carb upgrade / conversion -
    there is the FCR vs TM comparison - any preferences on that?
    I see the TM on ebay for $300 - is that the same unit as sold by FSW for $475?
    is the TM an easy (drop in) installation?
  14. demotors

    demotors n00b

    Joined:
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    Great Video. I just picked up a titled KLX 300 with BD kit to ride the back roads in NY State. Tons lighter than my 1150 GSA
  15. Yokomo

    Yokomo Dirt Rider

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    Sweet! I'll never sell mine. If you weigh more than 140lbs or so the first thing I'd do is install racetech springs for your weight. It makes the bike feel like a much better bike. If you're tall, the cheap rckmtnatv bar risers help a lot as well.

    WELCOME to this huge site.
  16. lukeinlondon

    lukeinlondon Been here awhile

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  17. Yokomo

    Yokomo Dirt Rider

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    I bet it has alot of $$ in it. Just check its condition over real well.
  18. Bogiewan

    Bogiewan Not So Gnarly Adventurer

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    I just recently traded my DRZ for a 97 KLX300.
    When I started to change the oil, I found a spring in the oil filter compartment, just laying there. I don't see any indication in the service manual that there is supposed to be a spring in there.

    It does have a K&N filter.

    Anyone know where that spring goes ?
  19. Yokomo

    Yokomo Dirt Rider

    Joined:
    Sep 10, 2008
    Oddometer:
    2,508
    Location:
    The Little Apple
    Do you mean it was lying in the oil filter area? If so it goes in the middle of the tongs to put pressure out against the oil filter.
  20. djchan

    djchan Long timer

    Joined:
    Dec 9, 2004
    Oddometer:
    1,206
    Location:
    on the border
    Anyone know the measurement for float height on my 2004 KLX300R with stock CVK carb?

    My bike starts and runs extremely well - yes, I've hand-started it. Unfortunately it's puking gas on my barn floor when I leave it unattended for a bit and the petcock on.

    Odd thing is it's puking through the bowl drain hose - not an overflow. May just need to loosen and reseat the drain screw. Anyway, the carbs coming off because I don't know what the jetting is - and I may want to ante up for a pumper, but in the meantime - I don't want gas on my floor.