DR350 Thread

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

  1. mentolio

    mentolio King of the island of unwanted toys...

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    I think there were bikes from the 80s that came equipped with oil LEVEL sending units, though I'll be damned if I can remember what models (want to say small Viragos, 535/250, but am likely wrong). I do remember them being small, though (the switch, I mean). Find your minimum comfort zone for oil level, weld a bung in the reservoir, add a light, and done...maybe...don't remember how they worked, just remember replacing quite a few of them, so maybe not a great idea to begin with?
    hellotimmutton likes this.
  2. turboguzzi

    turboguzzi Casual rooster

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    A DR350 is not for you IMHO. I bought mine for my girlfriend but ride it quite a lot. I am not even as tall as you (1.88m) certainly nor as lardy (84kg.) and the bike feels OK, but already on the limit of being too small to me. In tight and technical enduro it works fine but if im doing any highway miles or long fast gravel, my ass is usually found on the passenger seating zone, it's that short. So get a 600.... XR600, TT600, or if you dont mind doing a bit more maintenenace a KTM640. Im mentioning this older stuff as it sounds like your budget is under 2K euro or so.
  3. Andreim92

    Andreim92 Lost

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    Around there yea, regarding the budget. I also thought it was too little, I need my room haha. Sat on an XR650R, was ok, but hard to get because they're rare as ....
    Thanks for the reply ! P.S. Heres me on the XR !:rofl
    A19A1EB8-369A-4F94-A03A-6B55EBF6CDCE.jpeg
  4. turboguzzi

    turboguzzi Casual rooster

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    from the "RO" i take it you are in Romania? Guess not much second hand choice there.... If you can import from EU, then autoscout24 is an excellent place to look in. But that XR650s would be a rare beast also here in italy.... I think you have more chances finding a nice KTM from the LC4 series (600, 620, 640) than an XR650...
    law1200 likes this.
  5. Andreim92

    Andreim92 Lost

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    Yes....yes...and yes....will also keep an eye on xr600r s
  6. law1200

    law1200 Adventurer

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    I have 2 buddies your height and weight they both went with the XR650L due to their size. Wanted KTM but didn't want to have play the wait on parts game when in need of them. The only issue they have had is with the weird carburetor that Honda put on those bikes.
  7. Andreim92

    Andreim92 Lost

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    I d rather stick with the AT than getting a L, dont really like it although I heard its a good bike . Thank you for the reply !
  8. plugeye

    plugeye MC rescue

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    yep, i've seen this in the past on an XR650
    [​IMG]
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  9. buzzword

    buzzword Been here awhile

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    what’s weird about the carburetor? It’s a CV carb that’s not too dissimilar from the BST on a DR - just made by keihin instead of mikuni.
    Jeff@TheQuadShop likes this.
  10. MrPulldown

    MrPulldown Long timer

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    You can not get 100% throttle pull with th e S/SE throttle tube. The dirt throttle tube is different. If you shave the stops you can get 90ish%.
  11. slartidbartfast

    slartidbartfast Life is for good friends and great adventures Supporter

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    My GTS1000 had a low oil level lamp. Scared the crap out of me the first time it came on when I had been cruising at 110+ for about 50 miles. Turns out when the oil gets lowish and you are at high rpm, the oil begins to froth and you get a false warning. Backed off 10mph and it went out.
  12. turboguzzi

    turboguzzi Casual rooster

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    brilliant idea! from the school of keep it simple....problem is some people will forget to even look at that clear tube...
  13. V-Stormer

    V-Stormer Bush Basher

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    Thanks for the feedback. I heard back from Mikunioz and they didn't mention the throttle tube being a limitation on the SE, but suggested adjusting the push cable first, then the pull cable. I might try that sometime and provide the outcome. However, I can believe that the SE throttle tube is not going to be as aggressive as a dirt model and might be a limiting factor. I'm shy of the stock stops now, so shaving anything off the stops won't really gain me anything. But it sounds like you're saying even if you hit the stops, it's still not a fully open throttle. I don't think I need to be up there as I'm not racing or anything. If I could even go from stop to stop I'd be happy. But I'm actually happy with it only going 80% right now based on my style of riding. I might end up just leaving it in favour of other work I'd like to get done on the bike.

    I'm completing a fan kit mod on my custom oil cooler right now using a Trail Tech controller and sensor with a 3" IP67 waterproof and dustproof fan with dual ball bearings. Prototyping it right now, but it seems to operate as expected. Just not sure how well it might help cools things down yet. It's interesting to see the temp changes as I'm riding around though. (The temp reading on the dash-addition pic isn't showing temp yet as that pic was taken before the sensor was hooked up.) The red LED in the center of the dash addition pic is the oil pressure light.

    Attached Files:

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  14. V-Stormer

    V-Stormer Bush Basher

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    On the DR350se with a Clarke tank, I wouldn't be able to see the tube easily as the fuel tank covers up a lot of the oil tank surface. But I agree, it's a simple but brilliant idea if there is an area that's viewable.
  15. mentolio

    mentolio King of the island of unwanted toys...

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    Oooh, I like the oil cooler! Mind taking pictures/giving details as to how it's plumbed? I'd like to add a small one, but they're all "universal," and I'd prefer not to ruin my existing lines if I don't have to.

    Oh, almost forgot! Scored this on eBay last Friday for not a lot-o-moolah!

    IMG_4920.PNG IMG_4921.PNG

    According to the seller: 1990 DR350 bottom end. Looks mostly there (no clutch cover, clutch assembly, or oil pump drive gear), and no balancer blasted through the front (which is likely not an issue with an older one anyway, right?). Cases appear to be in better shape than my 250 cases, and seller says crank turns smoothly. Only problem he knows of: shifting problems, which could be something super-simple (or something catastrophic, time will tell). Should be waiting for me when I get home from work next Tuesday! Very exciting! Maybe the 250 will get a winter engine upgrade? Just need a jug (easy) and a head (not so easy).
  16. V-Stormer

    V-Stormer Bush Basher

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    I'd be glad to, but this is a "universal" cooler and I had to cut the existing OEM oil lines to make it work. The space is really limited and I tried numerous combinations until I came up with this one. It required drilling out and tapping the inlet/outlet on the cooler with a pipe thread (tapered) so I could make some fittings work. Finding fittings was one of the most frustrating aspects of the job. Then I had to run the stainless braided lines opposite to how it would normally be connected . . . out of the bottom of the engine into the top of the cooler, then out of the bottom of the cooler up into the oil tank. I cut the stock hoses off and re-used the pipe/connector sections on the lines. I had to flare the ends of the pipe too so it would seal better and not work it's way off. That was a challenge due to the thickness of the steel. I could have used non-stainless braided, but besides the extra strength, I thought it might look cool. Then I had to mess with the mounting bracket to get it placed just right without the hoses interfering. Took two tries of the bracket until I got it to work and there are still little things that could have been better.

    If a cooler was available that had the OEM style connectors, it would have been a breeze if you could find the OEM lines that were for the cooler. But all that stuff is long gone from suppliers. So you have to get creative and take some risks.
  17. turboguzzi

    turboguzzi Casual rooster

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    Just of curiosity, you live in Canada but nevertheless have oil temp issues?
    Asking because although it was twenty years ago, i clearly remember plenty of day long desert rides on DRs in +100 temps and no issues whatsoever in the Middle East region.
    Nowadays i live in northern italy, here high oil temp is not even an issue.
  18. thump!

    thump! Adventurer

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    You might be surprised. Since the stock machine has no oil temperature gauge, we tend to ride in blissful ignorance. High oil temperatures can occur anywhere when moving slowly. Stop and go city traffic, long slow climbs in 1st gear and the like. I added a fan to the cooler on my DR650 after seeing 300+ F oil temperatures under these conditions on several occasions. FWIW, I first tried a computer cooling fan like the one used by the OP. It didn't move enough air to have much effect and eventually warped beyond use from heat exposure. Those little fans are designed for much lower temperatures than they will see in this application. I ended up buying a SPAL 4" puller fan which works great. It moves a LOT of air and is tolerant of the oil cooler / cylinder proximity temperatures.

    Idling - the SPAL was switched on at the 17 second mark.
  19. Jeff@TheQuadShop

    Jeff@TheQuadShop TAT survivor

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    Those SPAL's are bad ass, I have one on my 2 stroke.
  20. V-Stormer

    V-Stormer Bush Basher

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    As "Thump!" points out . . . overheating isn't just a matter of ambient air temperature. One person on this thread quite a while back showed a temp of 140 C on his analogue oil-dipstick temp gauge, which is 284 F after a long uphill climb. Here in western Canada and the US there are lots of those! Could have been even higher because 140 C was the max the needle could go. I also go to Moab, Utah where the ambient temps are in the 100 F range and recently did the WABDR which was 650 miles of slow long up and down riding in sunny warm temps through desert like conditions for almost half of it.

    Overheating is harmful to engines, even if it doesn't cause them to fail at the time they overheat. A cooler was an option on the DR350 and I believe it's standard now on the DR650, R1200GS (pre WC), etc. So it's obviously something the manufacturers think is necessary. Is it absolutely necessary? . . . Maybe not if the type of riding , the ambient air temps and terrain aren't that demanding. But I'd rather have the insurance of having tried to do something to help keep the temps down. Not everyone would go to the extent I did, but my friends don't call me "The Fearless Mechanic" for nothing. :) I also run synthetic to help with the heat.

    @thump! . . . thanks for the confirmation re the fan. I'll give this one a shot for a bit and although it is the best I could find for the job, I suspected even after the first run that it's not going to pull enough air. I could add two (if it doesn't fail due to the heat), but even doubling the CFM that's only 88 cfm comparted to 124 cfm of a SPAL. I'm wanting to make a cooler guard anyway, so I'll probably do that and design it so I can mount a 4" SPAL fan on the guard. The cooler is only 3" wide, so bolting a 4" wide SPAL it on the cooler alone would look kind of dumb. But a guard would widen things in that area anyway and it would probably look more appropriate . . . Two birds with one stone. :photog