Honda XR350R

Discussion in 'Thumpers' started by MZcountryboy, Nov 23, 2007.

  1. MZcountryboy

    MZcountryboy Long timer

    Joined:
    Apr 10, 2005
    Oddometer:
    5,468
    Location:
    Northeast Kingdom, Vermont USA (close to Canada!)
    New to me, I pick it up next week.

    Anybody know anything about these things? Looks like a XR250 on roids.

    I did a search, not much turned up....
    #1
  2. drew-at-large

    drew-at-large Outhouse Race Team

    Joined:
    Nov 25, 2006
    Oddometer:
    266
    Location:
    Germany
    Early to mid-80s XR... basically a XR250R on roids... heavier but with more travel. Solid and fun. Below is the vitals on the 1983 model, however, I believe front disc brakes really didin't show up until 1984. I also provided the 1983 XR250R specs as well. I believe the hp ratings maybe a typo for both. I've seen the XR350Rs with around 31-32hp and the XR250R with around 20-22hp in other places.

    Hope this helps some...

    Cheers,
    Drew

    <table height="821" width="650"><tbody><tr><td class="xl24" style="border-style: solid;" height="39" width="136">Make Model
    </td> <td class="xl25" style="border-style: solid; border-left-width: medium;" height="38" width="556"> Honda XR 350R</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="136"> Year
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" x:num="" height="38" width="556"> 1983</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="136"> Engine
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="38" width="556"> Air cooled. four-stroke, single cylinder SOHC, 4 valve,</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="136"> Capacity
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" x:num="" height="38" width="556"> 339</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="151"> Bore x Stroke</td> <td class="xl27" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="38" width="556"> 84 x 61.3 mm</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="151"> Compression Ratio</td> <td class="xl27" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="38" width="556"> 9.5;1</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="151"> Induction
    </td> <td class="xl27" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="38" width="556"> 2x 26mm Keihin</td> </tr> <tr> <td class="xl28" style="border-style: solid; border-top-width: medium;" height="39" width="189"> Ignition / Starting
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="39" width="556"> CDI / electric</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="189"> Max Power
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="39" width="556"> 22.4 hp @ 7500 rpm</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="189"> Max Torque
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="39" width="556"> </td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="189"> Transmission / Drive
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="39" width="556"> 6 Speed / chain</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="189"> Front Suspension
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="39" width="556"> 41mm Air adjustable forks, 280mm wheel travel.</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="189"> Rear Suspension
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="39" width="556"> Single gas shocks, fully adjustable , 290mm wheel travel.</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="189"> Front Brakes
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="39" width="556"> Single disc</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="189"> Rear Brakes
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="37" width="556"> Drum</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="189"> Front Tyre
    </td> <td class="xl29" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="39" width="556"> 90/90 -21</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="189"> Rear Tyre
    </td> <td class="xl29" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="39" width="556"> 130/80 -17</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="189"> Wet-Weight
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="39" width="556"> 165 kg</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="169"> Fuel Capacity
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="39" width="556"> 9 Litres</td></tr></tbody></table>
    <table height="821" width="650"><tbody><tr><td class="xl24" style="border-style: solid;" height="39" width="102">Make Model
    </td> <td class="xl25" style="border-style: solid; border-left-width: medium;" height="38" width="550"> Honda XR 250R</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="102"> Year
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" x:num="" height="38" width="550"> 1983</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="102"> Engine
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="38" width="550"> Air cooled. , four-stroke, single cylinder SOHC, 4 valve,</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="102"> Capacity
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" x:num="" height="38" width="550"> 249</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="151"> Bore x Stroke</td> <td class="xl27" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="38" width="550"> 75 x 56.5 mm</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="151"> Compression Ratio</td> <td class="xl27" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="38" width="550"> 10.0:1</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="151"> Induction
    </td> <td class="xl27" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="38" width="550"> 2x 24mm Keihin carbs</td> </tr> <tr> <td class="xl28" style="border-style: solid; border-top-width: medium;" height="39" width="189"> Ignition / Starting
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="39" width="550"> CDI / kick</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="189"> Max Power
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="39" width="550"> 30 hp 21.9 kW @ 9000 rpm</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="189"> Max Torque
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="39" width="550"> 24.5 Nm @ 7500 rpm</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="189"> Transmission / Drive
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="39" width="550"> 6 Speed / chain</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="189"> Front Suspension
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="39" width="550"> Leading axel air spring 38mm forks 240mm travel</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="189"> Rear Suspension
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="39" width="550"> Pro-link air/oil shocks 4-way rebound damping 260mm travel</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="189"> Front Brakes
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="39" width="550"> Single disc 2 piston calipers</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="189"> Rear Brakes
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="37" width="550"> Drum</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="189"> Front Tyre
    </td> <td class="xl29" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="39" width="550"> 80/100-21</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="189"> Rear Tyre
    </td> <td class="xl29" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="39" width="550"> 110/100-18</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="189"> Dry-Weight
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="39" width="550"> 108 kg</td> </tr> <tr> <td class="xl24" style="border-style: solid; border-top-width: medium;" height="39" width="169"> Fuel Capacity
    </td> <td class="xl26" style="border-style: solid; border-left-width: medium; border-top-width: medium;" height="39" width="550"> 9 Litres</td></tr></tbody></table>
    #2
  3. Eurobiker

    Eurobiker Vintage Cat Herder

    Joined:
    Apr 23, 2002
    Oddometer:
    6,059
    Location:
    Albuquerque, NM
    These were only made 83-85, when Honda inexpictedly decided to discontinue production. The 83,4 had dual carbs, while the 85 went to a single. :thumb The 85 had a slight bump in displacement at 353 cc. These, especially the 85, are great little trail bikes. You'll find more info over at thumper talk. Here's mine:

    [​IMG]

    [​IMG]
    #3
  4. KneeKicker

    KneeKicker Long timer

    Joined:
    Jul 26, 2006
    Oddometer:
    2,642
    Location:
    Indiana
    funny to see this posted maybe it's a sign:lol3 . There is one of these for sale locally an 84 for $750 decent looking bike in the picture especially for an 84 I've owned older xr's before (an 86 xr600) and they are good trail riding bikes how does $750 sound for this bike?
    #4
  5. Eurobiker

    Eurobiker Vintage Cat Herder

    Joined:
    Apr 23, 2002
    Oddometer:
    6,059
    Location:
    Albuquerque, NM
    Lets see a pic. Does it have the pimp-daddy :pimp enduro speedo/ elapsed timer? This may have only been on the 85's. As for price, I'd try to get him closer to $500, as it will need something; even if running. :deal

    [​IMG]
    #5
  6. brp2004

    brp2004 Orygun

    Joined:
    Mar 14, 2007
    Oddometer:
    200
    Fun bikes, although a little heavy. I had a 83 xr350r and an 85 xl350. Dual carbs are pain to tune, but have good power. I think they went to front disc in 84 and single carb in 85, if i remember correctly. My only complaint was that if the bike was hot it was a pain start.
    #6
  7. drew-at-large

    drew-at-large Outhouse Race Team

    Joined:
    Nov 25, 2006
    Oddometer:
    266
    Location:
    Germany
    It was only the '85 model that had the enduro speedo/timer set-up.
    #7
  8. WoovsHoovs

    WoovsHoovs RUN SILENT

    Joined:
    May 31, 2007
    Oddometer:
    3,830
    Location:
    Motoplex
    Good bikes really-I have an extra set of dual carbs....
    buddy had an '85 and it was very nice in its day-zero problems and it had decent lighting for night trails:clap :evil

    I believe the 350 motors were more a downsized 500 than a larger 250-not a bad thing.
    #8
  9. apex

    apex /////

    Joined:
    Jun 24, 2007
    Oddometer:
    323
    Location:
    Hazzard County
    I belive that is correct. I like all dual carbed XL & XRs but factory jetting is too lean which lead to problems run them rich and they last. I would also recommend a later model XR250 or 400 oil cooler. you didnt say what year it is.
    #9
  10. MZcountryboy

    MZcountryboy Long timer

    Joined:
    Apr 10, 2005
    Oddometer:
    5,468
    Location:
    Northeast Kingdom, Vermont USA (close to Canada!)
    I rode this this bike a year ago, didn't buy then.

    Guy comes back a year later, lower price, I do a barter deal for the bike even.

    He's away for the holiday, I can't get it until monday.

    I seem to remember the digital setup on the handlebars, and don't remember it having two carbs, but I could be wrong. The guy who I'm buying it from is only like 5'5", so he doesn't ride it much. He has fixed most of the issues on the bike, like new plastics, tires, cables, carb rebuild, etc..... When I rode it, I was impressed by how "snappy" it was for a 350.

    Now I can't wait to pick it up, so I know what the hell year it is, and get a pic up here for you.

    It's a pretty clean machine.

    Thanks for all the help.
    #10
  11. 2whlrcr

    2whlrcr gooligan

    Joined:
    Jan 30, 2005
    Oddometer:
    10,294
    Location:
    Dubuque, Iowa
    I had a friend who had the dual carb version. He absolutely hated it, because the carbs were such a pain. He still bitches about that bike.:rofl

    I don't know if it's possible to convert it to a single carb, buy you may want to take that into consideration.
    #11
  12. apex

    apex /////

    Joined:
    Jun 24, 2007
    Oddometer:
    323
    Location:
    Hazzard County
    they can be difficult for novice tuners but no way I would convert to single. sounds like its an '85
    #12
  13. KneeKicker

    KneeKicker Long timer

    Joined:
    Jul 26, 2006
    Oddometer:
    2,642
    Location:
    Indiana
    my 86 xr600 had dual carbs I never had any problems and yes it did seem to have more power than my single carbed 94. And no it doIesn't have the fancy digital tripometer. it does have a speedo though. We'll see I emailed the guy for his bottom dollar I was thinking no more than $600 thats if the bike runs as good as the ad claims. I was planning a tear down with all new bearing repaint the frame and some new plastics.
    #13
    Ricklesss likes this.
  14. Solaros1

    Solaros1 Long timer

    Joined:
    Dec 20, 2005
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    1,581
    Location:
    Roswell, GA
    I had an 84 XR350 - neat bike - dual carbs were a bit of a pain. I sold it to a friend of mine and he rode it for about a year before it blew up (may have been running too lean) - he said finding parts for these old XR350's was getting difficult so he's switched to a DR400.
    #14
  15. WoovsHoovs

    WoovsHoovs RUN SILENT

    Joined:
    May 31, 2007
    Oddometer:
    3,830
    Location:
    Motoplex
    I have an 84 xr500 and parts seem easily accessed-since it's way low on the priority list-it prolly won't get its new piston for awhile.

    Tell ya when she was right it was close to my 525 on the bottom-and made my buddy's 02-xr400 feel like a mini bike-but the ktm kills it up top.

    I think it'll make a good ds bike once freshened up-solid old scoot.

    Keep us posted on the 350! It does look alot like an xr400...parts interchange!!!:clap :clap
    #15
  16. Hodakaguy

    Hodakaguy NorthWest Adventure Rider

    Joined:
    Jul 30, 2007
    Oddometer:
    2,457
    Location:
    Eastern WA State
    The 85 is the way to go. It had a dry sump oil system instead of the wet sump on the 83, 84 models. The 85 runs cooler and had a lot less bottom end problems than the wet sump models. There were many changes to the 85 that made it better than the previous models.

    I had a 85 and loved it!

    Hodakaguy
    #16
  17. LoneStar

    LoneStar WhoopDeDoofus

    Joined:
    Dec 8, 2006
    Oddometer:
    1,606
    Location:
    Texas, Zip Code EIEIO
    I had an 84 XR350 years back - opened the breathing and rejetted it. Started every time on 2nd kick and turned out to be a great deep woods bike. Pulled like a tractor and was stone reliable. Buddy had an 85 350 but the ergos of the 84 fit me better (6'4 240)

    Great bike and wish I still had it :thumbup
    #17
  18. AtomicGeo

    AtomicGeo Yep, ranked 49th.

    Joined:
    Jul 6, 2007
    Oddometer:
    5,105
    Location:
    Los Alamos, Northern NM
    #18
  19. MZcountryboy

    MZcountryboy Long timer

    Joined:
    Apr 10, 2005
    Oddometer:
    5,468
    Location:
    Northeast Kingdom, Vermont USA (close to Canada!)
    Picked it up today -

    [​IMG]

    [​IMG]


    1985, one carb, dry sump, electric speedo thingy, aluminum swingarm, new IRC knobs, they look pretty good. It's got the regular dirt bike rash, but overall runs pretty good, doesn't idle real well, but we've yet to even look at it yet.

    [​IMG]

    [​IMG]


    Now to get it torn apart, dual sported, and ready for some spring fun!

    I'm sure I'll have questions along the way.......
    #19
  20. yanni23

    yanni23 Been here awhile

    Joined:
    May 6, 2007
    Oddometer:
    655
    #20