Pablo's DR350

Discussion in 'Thumpers' started by Pablo83, Sep 14, 2010.

  1. Pablo83

    Pablo83 Sleep, Wrench, Ride

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    That's what I thought. :D I was assuming your "hi vis" comment was sarcasm.

    So are you looking to build a supermoto out of your bike?
  2. plugeye

    plugeye unforgiven

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  3. MrPulldown

    MrPulldown Long timer

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    I'd call this bike the: exhaust crusher!!! Just looking at that gives me the willies. I had my stock skid on the DR most of the summer, as I was trying to get the aftermarket skid welded up with lower mounting tab. I think pablo did the same. Went for a ride and took a big hit that folded the stock skid. The skid was almsot touching the case. I must have bounched off the rock hard as I am surprised I missed the lower rear portion of the case that was unportected. Good time!!
  4. Pablo83

    Pablo83 Sleep, Wrench, Ride

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    My skid plate has conformed to the case as well. The drain bolt is now exposed. Another winter project will be to re-shape the plate and add some reinforcement.
  5. MrPulldown

    MrPulldown Long timer

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    I notice that my top mounting bolts fit the same way on my bike; over to the side of the slot. This was in order to get the skid centered when fitting the tabs. These tabs are a must, after only a few rides, I had smashed the head of the allen srews in the j-hook mounting system. I had to grind the allen socket holes out with a pointy dremel and hammer in an old allen wrench to get the bolt out. This would have been impossible to do in the field, and took the better part of an evening to do, when removing the skid shoudl take about 1 min.

    I looked up this picture cause I wanted to see where you drilled your lightening holes. I will be drilling some holes in my skid too. However my reason is that I need a hole to fit my jack stand, as this skid is too smooth and there is no where for the jack stand to hook into.
  6. loosenoose

    loosenoose b00n

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    Eventually I'd like to get some sm wheels and street tires, but for now im just trying to make it dependable transportation
  7. Pablo83

    Pablo83 Sleep, Wrench, Ride

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    I think I posted recently that the bottom of my skiplate was starting to conform the the engine. My biggest concern about this was that the oil drain bolt was starting to become exposed. So I removed the plate to reinforce it.

    This pic shows the shape of the dent in the plate.

    [​IMG]

    I hammered the plate flat, cleaned the area to be welded, and cut a piece of aluminum for reinforcement. I had to leave enough room on each side of the reinforcing rib for the frame rails.

    [​IMG]

    It was pretty difficult trying to get something as dirty as a skidplate clean enough to weld it, but it worked out. We'll see how well it holds up.

    [​IMG]
  8. Pablo83

    Pablo83 Sleep, Wrench, Ride

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    I shouldn't have gotten the oil temp gauge. Sometimes ignorance is bliss.

    [​IMG]

    This only happens on extended technical uphills, but still, that can't be good. I change the oil every 1000 miles, so I hope that helps.
  9. BAD-MOD

    BAD-MOD professional fiddler

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    it would be interesting ti see how much an oil cooler would help.
  10. marksbonneville

    marksbonneville Been here awhile

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    I must me reading the pointer wrong so the arrow is not pointing to 60 celsius (140 degrees)? Also have you checked the thermometer for accuracy?
  11. Pablo83

    Pablo83 Sleep, Wrench, Ride

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    The needle has gone all the way through the red zone; past 140 deg C (284 deg F). I have two different brands of oil thermometer for the bike. The other one shows the same results, but it has a pin at 140 which prevents the needle from going any higher.
  12. marksbonneville

    marksbonneville Been here awhile

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    I have checked my DR oil temp with an infrared temp gauge after a good hard run and it did not get that high. As you say it only gets that hot on occasion, look at the bright side...KLR's run that hot all the time. :rofl
    Are you going to consider installing an oil cooler?
  13. BAD-MOD

    BAD-MOD professional fiddler

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    could be leaning out , ??
  14. Pablo83

    Pablo83 Sleep, Wrench, Ride

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    Yes, probably. I was hoping to do it this winter, but I've got a lot of other projects in front of this one, so it might be another year.
  15. Pablo83

    Pablo83 Sleep, Wrench, Ride

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    I doubt it. I've messed around with the jetting a whole lot. As far as I can tell, it's currently at the right mixture, but without and air fuel ratio gauge, I can't know for sure.

  16. saddlsor

    saddlsor my butt hurts

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    so, what is a normal reading, say going down the road at 55 or 60? also on gravel roads at lower speeds. does iit vary much with air temp....thx
  17. Pablo83

    Pablo83 Sleep, Wrench, Ride

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    The following are on flat trails on a 70 deg F day:
    Open road cruising: 90 C
    Quad track with whoops: 110 C
    Technical singletrack: 120 C

    lean jetting: add 10 C (this is with a main jet that causes a very slight amount of decel popping)

    Warm weather (90 F): add 10 C.

    Long uphills (+500 ft): add 20 C. This seems to be the biggest factor. I can be open-road cruising on a warm day (90 F) and the engine will be at 100 C, then I start to climb a mountain (even on easy jeep roads where I can keep the revs low) and the temp goes up to 120 C (redline).

    It's only gone above 140 C twice, both times were on really steep (uphill) singletrack with obstacles that required lots of clutch slipping.

    I'd really like to know how much ethanol blends contribute to high engine temps. If anyone knows where I can find solid info on this (not just people bitchin about change), I'd like to read more about it.
  18. MrPulldown

    MrPulldown Long timer

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    I wonder if higher octane gas will cool things down.
  19. Pablo83

    Pablo83 Sleep, Wrench, Ride

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    I run 91
  20. MrPulldown

    MrPulldown Long timer

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    Oil Changes every 1K miles?

    What are your thoughts of every 500. That seems like a number that more people report their intervals at. I shot for 500 but I currently have 700 on this batch of oil.