Drz250 Thread

Discussion in 'Thumpers' started by tdrrally, Jul 24, 2008.

  1. ruffzguts

    ruffzguts Adventurer

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    :(

    Oh crap!, timing stuff scares me. What would be the best way to diagnose?. Im guessing its massive job to change it.
  2. JamesK

    JamesK Been here awhile

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    I'd start off by replacing the CCT (Cam Chain Tensionner). This is an inexpensive part and is easy to swap out. I did this on my Djebel soon after I got it (mine has a lot of miles on it too) and have been happy with it.
  3. JamesK

    JamesK Been here awhile

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    Nice job, which carb are you running? I'm running the TM33 pumper carb...
    Are you planning on making these available for purchase :evil
  4. 1zero

    1zero Been here awhile

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    Mate, if your valves are out of adjustment they will make a 'tapping' sound in rhythm with engine revs, at idle you can almost count the tapping- if it's this then adjusting them is actually not a biggy.
    After ruling this out start looking at other stuff like mentioned by others such as the cam chain adjuster-they not the worlds best on the DRZ250- again not a huge problem to rectify.

    Let us know. Cheers.
  5. 1zero

    1zero Been here awhile

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    Yep, TM33.
    Bought as a brand new carb off Ebay, USA, then did a bit of rejetting here, actually, still doing a bit of rejetting :evil
    I'm getting a bit over-it taking the carb on/off though, running MJ137 and PJ 30 now, std needle position will trial out this weekend to see how she goes.
    Tried a PJ37, but too big i think, very erratic idle and no-idle lots of times.

    Cheers.
  6. JamesK

    JamesK Been here awhile

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    I've not had to adjust the valves on this engine, but changing the CCT was a peace of cake, just secure the chain to keep it from jumping a tooth or two and this can be done with just the rocker cover removed.
  7. JamesK

    JamesK Been here awhile

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    I bought mine off a mob called CarbParts also new and prejetted based on the mods I told them I'd made. These being, an opened up air box, after market pipe, removed the spark arrestor screen in the airbox and ground out restricter in the header pipe.
    http://www.carbparts.com/mikuni.html

    Prior to shelling out for the TM33 I played around with the OEM CV carb and got really sick and tired of the countless times I had to pull the damn carb out to adjust this jet or the other, what a PITA (once you have to do it often). How I wished for EFI and a Power Commander :cry

    Can you offer any more details on what you did with the Air Screw?
  8. 1zero

    1zero Been here awhile

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    1) Do you happen to know what size the MJ, PJ and needle clip position is?
    2) The FS was worked on at a shop, I gave them my FS from the carb, they drilled a small hole into the top where the slot is and inserted the spiral wound steel cable, looks like they brazed it in and more or less the same thing for the bolt head end-done.
  9. JamesK

    JamesK Been here awhile

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    1zero sorry I don't know/remember the jet sizes, and after pulling the carb more times than I care to remember in the past, trying to get the OEM CV POS working properly both on and off road I really don't want to touch it again now that it's running right.
    You might give the guys at this company a call, they were very helpful and are likely to be able to tell you what jets they would install for the following mods:
    opened up airbox, grind out the weld in the header pipe, after market slip-on, removed the spart arrestor mesh screen from the airbox.
  10. redleger

    redleger Horrible Mechanic

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    Happy Veterans day. Spent the morning on the DRZ 250 down at the local pit. The first place I wanted to ride was closed for hunting apparently so I went on post. That place is treacherous but I tackled it pretty good. Here is the short video of my riding abilities on this cruddy riding spot.

    She still sounds sick after getting her all sorted out. She died at the top of the hill a couple of times, but not in this clip. turned out the fuel screw a bit, thinking it might have been a bit lean, but still happened. Tomorrow Ill play with it some more and sort it out. she ran fine with current jetting prior to the "incident" so probably just got the screw turned out too many times.

    http://youtu.be/JGFA9oP-E4g
  11. 1zero

    1zero Been here awhile

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    Well it may not be the most glamerous area to ride but any ride is generally better than no ride :-), keep it up.
  12. redleger

    redleger Horrible Mechanic

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    Agreed. My schedule is hectic but a little time is better than no time. Now of I could get my 400 running I could have someone to ride with

    Sent from my SPH-L710 using Tapatalk
  13. r100rsman

    r100rsman Adventurer

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    Hi Folks, I am new owner of a 2001 DR-Z250 and I have an issue with the electric starter I need some advice on. The bike has very low use (89 miles) and is very clean. It kicks starts perfectly and runs very strong and true. I Love the bike. But my issue is the electric starter is not working. I knew it was bad when I bought it and got a better deal as a result and I am trying to diagnose the problem.
    Current condition and problem:
    When I hit the start button (with clutch pulled in) there is a clicking noise from solenoid (not starter). Current is making its way to the starter and all ground wires have been cleaned. However, after I washed it (first time) it stated once. Since then nothing just clicking noise when I press starter button. Also all lights are working, and don’t flicker when engine is running and revved.
    <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:eek:ffice:eek:ffice" /><o:p> </o:p>
    What I have done so far:
    Ordered a service manual (be here Friday)
    Good battery (PO said about a month old and holds full charge)
    Cleaned all battery and ground connections (because of low use they all looked good but cleaned them anyways)
    I have cleaned and checked Starter button, kill switch and all wires leading to and from both, and fuse.
    Banged the starter with rubber hammer to try to loosen it up.
    <o:p> </o:p>
    So my question is, before I remove the starter is they any other thing I might check??

    Thanks
  14. redleger

    redleger Horrible Mechanic

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    Welcome to the club first off!
    As for the starter I honestly have no clue. Sounds like you have checked the usual suspects. The fact that it worked once after washing seems like it could be something like a loose wire or ground.
    Hopefully one of the smarter inmates can shed some light on this situation.

    Sent from my SPH-L710 using Tapatalk
  15. tdrrally

    tdrrally Long timer

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    check the wires for loose connections and corrosion
    confirm the battery has a full charge, take it to an auto parts of motorcycle shop for a load test
    if all that is good remove the starter motour and test it
  16. r100rsman

    r100rsman Adventurer

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    I pulled the starter out last night and sure enough that was the problem. Cracked open the starter, cleaned it up and put it back in. Started right up. On a side note, the removal of the starter was not too difficult once the pipe was removed. Thanks for the help.
  17. redleger

    redleger Horrible Mechanic

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    Glad to hear it!

    Sent from my SPH-L710 using Tapatalk
  18. tdrrally

    tdrrally Long timer

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  19. 1zero

    1zero Been here awhile

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    Great stuff you're obviously a good DIYer ! this is a requirement of owning a motorcycle.
  20. r100rsman

    r100rsman Adventurer

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    Well I thought I had solved the starter problem but the starter stopped working again so I decided to bite the bullet and get a new one. So old starter out and new starter in. No problem with the swap and starter works great but now my bike will not start.
    Yes I fixed one problem and created a new one at the same time. So here are the facts:
    Current status:
    Bike turns over and getting a strong spark. Getting fuel and have even used starter fluid to no avail. Kill switch operating correctly. So it turns over, gets spark and has fuel, tries to catch but just won’t start.
    Also, it was running perfectly prior to the starter swap out. My thinking is that I may have damaged the CDI or possibly weakened the coil when I had the battery charger charging the battery when it was in the motorcycle. Could the charger have fried the CDI or coil?
    I am stumped; any help would be greatly appreciated.