DR350 Thread

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

  1. BigNastybrp

    BigNastybrp Big Nasty

    Joined:
    Dec 18, 2007
    Oddometer:
    695
    Location:
    high speed boogie land, Sunny Ca.
    Can some one tell me what piston ring gap should be for a 1990 dr350? I can find it I need head and cylinder torque. Man a rebuild with out the shop manual is a lot harder.
    I think valves should be intake 0.05mm-0.10mm ex0.08-0.13mm is this right? I am still looking but have not found this info Bert
  2. 2old2Bbold

    2old2Bbold was 2bold2getold

    Joined:
    Dec 10, 2011
    Oddometer:
    1,938
    Location:
    DFW TX
    [​IMG]

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    You are gonna need a book or use Gregs online manual. Although, If a guy doesn't have much prior experience, it's gonna be tough with that manual. I looked up the cam timing procedure in my book, and it's kinda hard to figure out. :-(
  3. BigNastybrp

    BigNastybrp Big Nasty

    Joined:
    Dec 18, 2007
    Oddometer:
    695
    Location:
    high speed boogie land, Sunny Ca.
    thanks you :clapthats what I needed. you sir are a rock star!
    back to work on my $320+$241 in parts=$561 dr350s with 7333 miles

    thanks Bert

  4. RuggedExposure

    RuggedExposure Now with more rugged

    Joined:
    Apr 5, 2011
    Oddometer:
    1,263
    Location:
    NM desert wasteland
    So far so good.

    I hope.

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    I need to change the oil on my Husky. It has 101 miles on it :evil
  5. Ghostyman

    Ghostyman Been here awhile

    Joined:
    Sep 5, 2011
    Oddometer:
    257
    Location:
    LA face with the Oakland booty
    I'm going to change my fork gaiters soon. Do the forks have to come off or can the gaiters be slid up from the bottom after taking off the front wheel?
  6. Chiknmunky

    Chiknmunky Adventurer

    Joined:
    Sep 16, 2010
    Oddometer:
    89
    Location:
    On road Off road
    I would say the forks have to come off.
  7. 2old2Bbold

    2old2Bbold was 2bold2getold

    Joined:
    Dec 10, 2011
    Oddometer:
    1,938
    Location:
    DFW TX
    If you wanted to replace the fork seals, then you could slide them on from the bottom. But I don't think they will go on from the bottom over the lower sliders, besides it looks about as easy to just leave the wheel on, remove the cable and hose and slide the forks out of the clamps. Might be easier with a little help, though.
  8. Hotmamaandme

    Hotmamaandme Wishing I was riding RTW

    Joined:
    Jan 10, 2006
    Oddometer:
    2,724
    Location:
    Gardnerville NV
  9. pdxthmper

    pdxthmper Been here awhile

    Joined:
    Oct 24, 2009
    Oddometer:
    427
    Location:
    Portland OR
    Just picked up a 98 350se with 6900 miles in prety good shape, but now its time make it run really well.
    1. With the CV carb, stock pipe and UNI filter at sea level what is a good starting point for jetting I have seen 140 main but what about the pilot?
    2. Is the "T" mod for both CV and Pumper carbs?

    right now the bike is hard to start and wants to die if you chop the thottle quickly also stubles a little in the mid range, is fine at high rpm / speed. I am expecting this to get cleaned up with a carb cleaning new jets, and a valve adj / check.

    Projects for it before it gets handed over to my new to riding girlfriend
    1. engine tune up: carb, oil change, valves, air filter
    2. #3 lowering link, slide forks up
    3. New Clutch cable
    4. Clean / lube throttle cables
    5. new grips and heaters

    Pretty basic stuff anything else should be looking at while it is apart?
    thanks
  10. Ghostyman

    Ghostyman Been here awhile

    Joined:
    Sep 5, 2011
    Oddometer:
    257
    Location:
    LA face with the Oakland booty
    Thanks. I'll pull the forks off and give them a good inspecting along with swapping gaiters.
  11. Greg Bender

    Greg Bender Long timer

    Joined:
    Oct 22, 2007
    Oddometer:
    1,244
    Location:
    Cave Creek, Arizona, United States
    "T" vent mod is only for CV carbs.

    I'm at 2200 feet and typically go up in elevation from here. I have a UNI filter, uncut airbox, Jesse modified stock muffler and I run stock jetting for my 1993 model year (CV carb). Even when I had a cut airbox and pumper carb, 140 was way too big for me. 132.5 main jet was the only difference from stock I used with my pumper.

    Of course, YMMV.

    Other things to do:
    - grease the swingarm stuff
    - check remaining space on cam chain tensioner (should be fine at 6900 miles)
    - check wheel bearings
    - lube speedometer cable

    Regards,

    Gregory Bender
  12. mustangwagz

    mustangwagz Been here awhile

    Joined:
    Apr 8, 2012
    Oddometer:
    247
    Location:
    Western PA
    YO greg, Lubing of the speedo cable...how ya doing that? just take both ends off, squirt, then twist and repeat till it comes out other end?
  13. shootmymime

    shootmymime Adventurer

    Joined:
    Dec 14, 2012
    Oddometer:
    24
    Hello everyone, i thought i would just introduce myself. last summer i went to Mid-Ohio with a buddy who owns hundreds of bikes. well he sold me one for a steal.$600 although it has been rebuilt and changed with some donor parts from a Honda CR (i think) its a great fun bike! so far i have added a baja light kit, pirelli rear tire xcmh (i also picked up a rear paddle tire) and just gone over the bike making sure everything was adjusted properly. ive put a few hundred miles on it riding it around my property this last summer. alright enough talking how about some pictures!
    the first few are how it looked the day i got it. then on the trailer back home, then the upgrades.
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  14. RuggedExposure

    RuggedExposure Now with more rugged

    Joined:
    Apr 5, 2011
    Oddometer:
    1,263
    Location:
    NM desert wasteland
    [​IMG]

    See that smoke? I got it running again.

    Thats the copious amounts of oil burning out of the exhaust from lubricating the piston and cylinder wall.

    Rode the bike around for a few minutes then it started having issues again with backfiring.
    I think its going to stay in its current state until Bullitman281 comes down next month and he can give it a look.
    I'm tired of wrenching on this shitbox Suzuki.

    In other news I put 103 miles on the Terra 650 and changed the oil today.
    Rides like a dream. Only 900 more miles until break in is over. :clap
  15. bullittman281

    bullittman281 Been here awhile

    Joined:
    Dec 22, 2007
    Oddometer:
    101
    Location:
    4 corners-ish
    Easy now, The name calling might hurt its feelings. I've already got my work cut out.

    You should try to ride it around and warm it up, see if its still doing the exact same thing or if its different now. '
    Now might be the time to order some new parts. At least it runs again.

    bullittman
  16. RuggedExposure

    RuggedExposure Now with more rugged

    Joined:
    Apr 5, 2011
    Oddometer:
    1,263
    Location:
    NM desert wasteland
    Ya, I may get a gasket set before you arrive.

    Maybe tomorrow if I feel in the mood to get pissed off I'll fire it up and tinker with it.
  17. a1fa

    a1fa Throttle Jockey™

    Joined:
    Nov 1, 2006
    Oddometer:
    13,906
    Location:
    Arkansas
    Walk away! When I am pissed off, shit usually breaks off, bolts strip, knuckles get bloodied.
  18. Zane Neher

    Zane Neher Been here awhile

    Joined:
    Dec 14, 2012
    Oddometer:
    163
    Location:
    Gainesville, Florida
    So.. Do DR250s usually have a steady tick coming from the top end (sounds like)?
    I changed the oil since someone told me old oil can make my clutch slip (which gets worse when the bike sits in traffic) and afterwards noticed a ticking. Never noiced before, probably due to the helmet, but my buddy said he's heard it before. Im also in the garage so it probably intensifies the sound.
  19. redleger

    redleger Horrible Mechanic

    Joined:
    Jan 16, 2013
    Oddometer:
    588
    Location:
    Tornado Alley, Oklahoma

    Could that even be categorized as a DR anymore? I think it looks amazing though. Mine runs like a damn sport bike IMO. faster than I imagined when I bought it. I am currently planning out the new aesthetic changes to totally change the look of the bike and I like what you did there.
  20. Zane Neher

    Zane Neher Been here awhile

    Joined:
    Dec 14, 2012
    Oddometer:
    163
    Location:
    Gainesville, Florida
    Confirmed, with the helmet on I can't hear the tick. Is this normal? I guess I should adjust the valves just to know it's been done.