DR350 Thread

Discussion in 'Thumpers' started by leonphelps, May 16, 2007.

  1. plugeye

    plugeye dreamer

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    May 11, 2007
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    Garland, Texas
    34mm
  2. redleger

    redleger Horrible Mechanic

    Joined:
    Jan 16, 2013
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    588
    Location:
    Tornado Alley, Oklahoma
    OK, so I allowed the movers to move my bikes. Mistake number 1. I asked if they needed to be drained, and they said no, because I would be there on the other end to receive them.

    Long story short I was not able to make it on time across the country, so they got put into temporary storage.

    Upon inspection of my bikes, I found that they had pulled the fuel lines to drain the tanks. OK, no biggie. I go to change my oil last night to get ready to ride into work this morning on my DR and I smell fuel in the oil. I have never had this issue, and had changed the oil a few months ago and put very few miles on it since then.

    Am I looking at a huge issue here? I put in new oil. Is it safe to ride around a little bit, then drain it again and see if it still smells of fuel, or do I need to be sending it in to have the top end looked at?

    Thanks in advance for any input.
  3. haggeo

    haggeo Been here awhile

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    Aug 8, 2005
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    930
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    oakland, ca
    i would flush it out with fresh oil, maybe twice, then carry on as usual. the top end should be fine.
  4. travis789

    travis789 Been here awhile

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    Mar 21, 2013
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    Your engine was stone cold when the valves were adjusted, I hope?
  5. snowman650

    snowman650 Adventurer

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    May 2, 2008
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    Michigan
    Jackanory,thats the same carb I have on my 91 350s,single cable and all.
  6. CurbTiger

    CurbTiger Adventurer

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    Aug 18, 2010
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    Great North West
    Thanks for the confirmation of fuel valve bolt spacing. Makes life much easier.
    Them wee side valve engines will NOT tolerate a leaky petcock. Drains right outta the carb into the LH main bearing..

    NE
  7. Dirt4life

    Dirt4life n00b

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    May 10, 2013
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  8. Richklr650

    Richklr650 Been here awhile

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    Dudley ma.
    hi gang i posted the other day that i just picked up a 93 dr350s that sat for a few years, pulled the carb ( what a messss) cleaned it changed the oil fresh gas a little carb cleaner in the tank. took a bit but fired up ran ok tookit for a couple test rides did ok but pops out of 3rd gear some times ??? what is up with that ? still have to do the valves thanks
  9. 2old2Bbold

    2old2Bbold was 2bold2getold

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    Might want to check the shift drum bolt... http://www.advrider.com/forums/showpost.php?p=20094092&postcount=13643
  10. Bonnie & Clyde

    Bonnie & Clyde Wishing I was riding RTW

    Joined:
    Jan 10, 2006
    Oddometer:
    3,184
    Location:
    Gardnerville NV

    Thanks for the response. No leaks and yes checking when hot. Ill just keep watching it already set up a small oil bottle for the bike.
  11. Crenshaw

    Crenshaw Bum

    Joined:
    Sep 17, 2012
    Oddometer:
    144
    Location:
    Salidaho
    Mine was using oil similarly to yours when I first got it- off the dipstick after 100-200 miles, even less if there was high speed pavement riding involved. It eventually drove me insane and I pulled the top end and found a very stuck oil control ring. I ended up with a procycle 385cc kit, but I'm sure I could've gotten away with just a new set of rings or even simply cleaning up the old ones along with the piston. Now I rarely add oil between changes and no longer have an msr bottle full of oil living in the bags permanently.

    As it is, just make sure to keep a close eye on it- seems like these things really don't like running low.
  12. inroads

    inroads Wimberley,Texas

    Joined:
    Feb 12, 2010
    Oddometer:
    558
    oil check if cold requires 3 minute warm-up then wait 1 minute then check.
    If hot just wait 1 minute after shutdown.
  13. Richklr650

    Richklr650 Been here awhile

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    Dudley ma.
  14. scharfg

    scharfg Been here awhile

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    Jun 7, 2006
    Oddometer:
    441
    Location:
    Prince George (icky) BC Canada
    My DR has ~9000 miles on it and last riding season the clutch started to slip sometimes when I put it into 3rd gear and hit the throttle hard.

    I've just got the bike on the road and its still doing it although now its doing it sometimes in 4th gear as well (happens off and on).

    I have adjusted my clutch lever so there is no play in it, basically I just have to pull the lever in and I change gears.

    I tried lubing my cable but it has a plastic sheath over the wire the slides inside the cable housing so I can't get a cable lube needle inside the housing as there is not enough room.

    Is there any adjustment I can do at either end of the cable that will help to sort this out?

    If not, how long can I ride the bike like this before something could go wrong?

    I wonder if its because I jdid the air box mod and just last week installed a pumper carb from Jesse....?

    Thanks for helping this newb out!
  15. travis789

    travis789 Been here awhile

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    Mar 21, 2013
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    Maryland
    You want play in it, that means the clutch is completely engaged. I set mine up where the lever flops around free and you have to pull it in an 1/8" before it actually grabs the end of the cable. Do you have a manual?
  16. scharfg

    scharfg Been here awhile

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    Jun 7, 2006
    Oddometer:
    441
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    Prince George (icky) BC Canada
    Ah thanks dude, I'll put some play in the lever and hopefully that does the trick!

    Best wishes.....
  17. travis789

    travis789 Been here awhile

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    You're welcome and good luck. A lot of times it is the cable, they can stretch and also if they're sticky (not lubed) it can make it difficult to get the adjustment right. I hope that's what it is. All the bikes I've had, i've worn out clutch cables but never a clutch. But you can never tell what a PO may have done and I imagine a clutch could wear just from driving around with the cable incorrectly adjusted.
  18. Suzuki Phil

    Suzuki Phil Been here awhile

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    Sep 7, 2007
    Oddometer:
    726
    Location:
    Simi Valley, CA
    Burning oil on startup is usually valve seal related as oil seeps through the seals when sitting. If you start your bike up and it smokes when your ride or rev it up it's usually the rings.

    I ride my DR to work and check the oil once a week. After I get home I let the bike sit for about two minutes, pull bike upright, remove dipstick, wipe and place back in hole without screwing back in. Pull out and check. Letting the bike sit for a couple minutes is important.

    SP


  19. thump!

    thump! Adventurer

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    Jan 16, 2007
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    Northeast Tennessee
    I've owned 6 or 7 DR350s, both the offroad and S models. All were bought used. Some were only parts donors but three of those were tagged and used as true dual sports with greater than 50% non-paved use. All-in-all around 40K miles total on those three, all w/o a passenger but with my 220 lbs on board. To the point, those bikes saw some hard use but never abuse (from me) and the OE clutch began slipping at some point on all three of those. On two of them, the two I rebuilt with Wiseco hi-compresson pistons, all that was required was stronger (actually shimmed OE) clutch springs. The one I have now (a '96 frame with a stock '93, low hours, off-road engine) recently got new plates and springs after a carburetor refresh that increased power output slightly and resulted in clutch slipping. All the bikes have been run on Rotella 15W40. I agree that cable adjustment is important on these bikes and that one needs to be sure there is some cable slack but I also believe the clutch is one of the early failure points in the 350 design. Search this and other DR350 forums and you find it's a frequent topic. In contrast my DR650 has 40K miles with no clutch problems whatsoever AND a lighter clutch pull. It simply has a bigger and better clutch design I think.
  20. swoody126

    swoody126 Been here awhile

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    Aug 26, 2008
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    425
    Location:
    denton, America
    been playing this game for over 40 years & never used a NEEDLE to lube my cables

    started out creating a funnel from duct tape & dribbling lube down the disconnected cable, 'til it emerged from the other/bottom end

    then came the CABLE LUBER TOOL:

    http://www.aerostich.com/cable-luber.html

    this tool is a small, very efficient link between your favorite aerosol lube can & either end of your cable

    you have already identified the plastic sleeve & therefore the need for a plastic friendly lubricant

    proper use of this tool assures COMPLETE application of lube

    as mentioned above, a bit of FREE PLAY in the lever assures there is no exterior force on the clutch system, which is necessary for proper engagement

    just an OLD man's 2ยข worth

    sw