DR750 & DR800 owners thread

Discussion in 'Thumpers' started by MCmad, Jul 14, 2008.

  1. Dino3310

    Dino3310 Been here awhile

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    Oct 11, 2008
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    674
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    waikato
    buy it:D
  2. wundis

    wundis Adventurer

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    Apr 19, 2012
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    Vilnius, Lithuania
    well I think it's gonna be worth the money. unless the engine is all messed up. its still gonna be worth it, but youll have to put in money to get it running nicely.
  3. Resi

    Resi Been here awhile

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    Jul 5, 2011
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    Nassau Area
    Go ger her!

    :clap
    LarS
  4. Beer'o'clock Baz

    Beer'o'clock Baz Long timer

    Joined:
    Feb 3, 2011
    Oddometer:
    2,062
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    Close to Brisbane
    Hey Fellas
    Ive been chasing a front sprocket for my Cagiva W16 for the last few weeks and have just found that the DR 750 and 800 may fit the boss goes the other way round on my bike which doesn't matter - I have been through this with a few other sprockets that fit the spline but the width of the sprocket has been the problem - mine is 10mm wide the others are 9 - so was wondering if anyone has an old front sprocket they can either send me so i can check {i will pay for postage ofcource } or send me an pm with measurements and a pic of the sprocket where it goes on the spline .
    Thanks in advance
    Barry
    p.s JT has them as diferant yet Afam has them as the same
  5. robmoto

    robmoto Long timer

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    Feb 15, 2009
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    Australia
    The DR750/800 front sprocket is the same as a early 90,s 650 sprocket, 520 chain size.
    A DR 650 late model runs a 525 chain and the sprocket base where it fits on to the counter shaft is about 2mm wider and where the chain runs also, so you could get the outer part machined down to suit a 520 if neaded.
    sorry the battery in my callipers is flat, just found this site with measurements,
    http://stores.ebay.com/Motorcycle-Parts-Giant/_i.html?_nkw=dr800&submit=Search&_sid=1067012968
    try Metalgear Queensland.
    [​IMG][​IMG]
  6. Beer'o'clock Baz

    Beer'o'clock Baz Long timer

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    Thanks Rob
    Metalgear dont do my model but chaingang will make one up for me $50 tho plus delivery so i think i may have to bite the bullet and get a couple of those - the jtf numbers are diferant on the suzies than my bike so not sure what the dif may be , I have already bought one that was supposed to fit so a bit cautious on there supposed interwebby sizes ;-}:rofl
    Just looking at your pic and thinking I could get the one I bought the other day that was a mm thinner and put that spacer in behind , it would have the same spline pattern or just pay the 50 bucks :-}
  7. robmoto

    robmoto Long timer

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    I am not sure if this is the case or not , but if you put a spacer at the back of the sprocket it might turn and the splines line up and it could work its way over to the counter shaft seal and engine crank case :eek1.
    Tony T fellow inmate has a BIG and a Cagiva he may be the bloke to get onto from the Barrossa Valley S.A.
    Look him up in the wanted section he posted a few day,s ago looking for another Big.
  8. Beer'o'clock Baz

    Beer'o'clock Baz Long timer

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    Feb 3, 2011
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    Close to Brisbane
    Thanks bud
    having trouble with brake lights now aswell might have to go down to dick smith and doctor a momentary switch up :roflhope this bike is worth the stress :cry
  9. wundis

    wundis Adventurer

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    Apr 19, 2012
    Oddometer:
    88
    Location:
    Vilnius, Lithuania
    I've been commuting with the Big for the last couple of weeks, hadnt had the time to open up the carbs again but I think the moment has come to do it. Today after riding to work and during a short ride just after that (the engine was hot) it refused to run on iddle. Basicly anything going lower than 3k rpm would be a nono. It starts back up fine, and works over 3krpm fine, but nothing lower. I would recon, my pilot system got clogged?
    It was weird filtering through traffic at 4krpm :ear
  10. robmoto

    robmoto Long timer

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    Wundis before you take the carbs off , take the tops off and check both C clips are on the needles and look at the diaframs too .
  11. wundis

    wundis Adventurer

    Joined:
    Apr 19, 2012
    Oddometer:
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    Vilnius, Lithuania
    I tried coming back home with my big, but it was running so poorly - it was such a challenge, and I had plans to get away for the weekend...

    Anyhow, eventually I got back, pulling the choke on/off trying to figure out if it was running rich or lean. And a few moments later everything was off, the diaphragms were ok, needle clips were ok (i took the chance to lower the needle from 3rd to 4th position as the manual suggests for the 32D2). I was about to start removing the carb, removed the vacuum pipe and I saw it being wet inside.
    I tried to pump a bit with my mouth - and got so much petrol. gross.

    Anyhow, turns out the replacement diaphragm barely lasted 1kkm. Found the old one, which was still in tact, and it runs perfectly again. 200 km done, works like a charm, and with the needle lowered by 1 position - much better. My weekens plans are on again :clap
  12. shanekfalcon

    shanekfalcon Been here awhile

    Joined:
    May 22, 2010
    Oddometer:
    372
    Hi guys,

    My big is going real well and I'm slowly going through some smaller things, cometic things to make it look better and more comfortable for the 2.5 -> 3.0 hour commute once a week to the farm and then back again. In fact, got my car back this week and drove up for the first time in six months. Sure, I was warm, but it was boring. Riding is mouch more interesting.

    Anyhow, it has a small but persistant oil leak. I think it is from the gear lever shaft; perhaps an O ring or seal that I can reach from the outside? Does that sound right to you guys? As we are going on a week holiday, I've degreased the area and will check for an oil track when we get back.

    Whilst cleaning the area I've noticed that the sprocket moves on the shaft, about 2 millimetres all up. Is the front sprocket a floating sprocket or is there something wrong here?

    Thanks,

    Shane
  13. Silent Hunter

    Silent Hunter Been here awhile

    Joined:
    Dec 1, 2009
    Oddometer:
    101
    Hi people,
    I am looking for a table like this, with the DR800 loudness in it after fitting in a GPR pipe.

    Does anyone know where to get one?

    [​IMG][​IMG][​IMG][​IMG]
    [​IMG]
    [​IMG][​IMG]

    [​IMG]
  14. mait

    mait Been here awhile

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    Aug 16, 2009
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    Tallinn, Estonia
    Have you tried asking GPR?

  15. Silent Hunter

    Silent Hunter Been here awhile

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    Dec 1, 2009
    Oddometer:
    101
    Yes, I have emailed and fax 2 different GPR branches.

    No reply.

    I am hoping someone here will have a copy of it with him/her and share it online.
  16. p3dro

    p3dro Adventurer

    Joined:
    Jan 8, 2010
    Oddometer:
    30
    No such luck!
    I'm ready to throw the towel in, the garage have had it for 2 months now and they are out of ideas. I went to see them yesterday and they said they were going to give the 'readings' from the multimeter to the company that re-wound the generator to see if they have any idea, but they can't work out why it won't start...

    Anyone in/around London looking for a project bike?
  17. guzzirelic

    guzzirelic Been here awhile

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    Nov 15, 2008
    Oddometer:
    224
    Location:
    near Espanola Ontario Canada
    Hi to all.
    Some may recall that I popped in on your thread a few months back to post a couple of photos of Canadian DR Bigs, (post number 14304)
    Well I'm back now with photos of my very own recently acquired 1989 DR750. I didn't think I would ever find one close enough to home and at a price I could afford but this bike showed up a few weeks ago on a Canadian classified website. The seller was located about 550 kilometers from me and what sealed the deal was the fact he was looking for some wood working equipment. I had several pieces of equipment that I haven't used in five years and was anxious to see them go to a good home. We worked out the details and on Monday I made the trip.

    [​IMG]

    As you can see, she is pretty rough. But runs ok. I'm making a list and starting to order some of the most needed items. My plan is to get the bike into good mechanical condition including ready for our required safety inspection. The cosmetics will have to wait for now.

    [​IMG]

    [​IMG]

    [​IMG]

    Today I ordered a new Avon Gripster rear tire, (to match the front) as well as the stock throttle assembly and some rear brake pads. The seller provided new front pads. I need to remove, clean and paint the exhaust system as well as make up something to replace the missing heat shield. I have the missing side cover to install once the heat shield is on.
    The seller only had the bike a short time and never rode it. He has little knowledge of the history. The odometer shows 47000 kilometers so I'll go through everything before riding too far.
    The good news is with the seat rubber dampers removed I can touch the ground, (barely) so I've managed a little ride around my back yard but no further yet. :clap
    First question I have --- should I be checking the balancer chain adjustment at this age?
    I'll have many more questions for you I'm sure and will keep you updated with any progress or problems.

    thanks for an excellent thread and I look forward to learning more about my new bike.

    Relic
  18. Old Fart At Play

    Old Fart At Play Mad about thumpers

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    May 24, 2008
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    176
    Location:
    Murillo & Pass Lake, Ontario
    Congratulations Relic on the new-to-you DR BIG. Between you, North Rider and Finndian there is now a complete set of Canadian-spec BIGs in Northern Ontario. Maybe all 3 will make it to next year's NOFAR rally! If I hadn't sold my 800 we would have 13% of all the BIGs ever sold in Canada in our little group.

    Steve
  19. guzzirelic

    guzzirelic Been here awhile

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    Nov 15, 2008
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    near Espanola Ontario Canada
    Thanks Steve. I wasn't sure if you had sold yours or not.
    So 13 % eh? My math is not that good...you know how many Bigs were sold in Canada? 54? Is that all?
    Nearly as rare as my Panther!:D
  20. Old Fart At Play

    Old Fart At Play Mad about thumpers

    Joined:
    May 24, 2008
    Oddometer:
    176
    Location:
    Murillo & Pass Lake, Ontario

    I've read 30 to 32 in total over the 3 years.