KTM 530 EXCR- More better!

Discussion in 'Thumpers' started by neduro, Apr 3, 2008.

  1. Bungholio

    Bungholio Been here awhile

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    That is the biggest problem; where to get the oil from and where to return it to the sump. I was thinking of 1/4-1/2 of the left radiator area used as an oil cooler and the remanning radiators with a thicker core. Or a Setrab behind the current left rad.

    I had a DR350 back in the day with a nice oil cooler and my current DR650 has one. I remember Honda had one on their XR's around the steering head but it was pretty small.
  2. Krazyjohnny

    Krazyjohnny Been here awhile

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    @HG,

    Yes, it is much better when warm. Only takes a slight bump of the starter.
  3. Double Moo

    Double Moo lookin' for adventure

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    My 530 tends to run hot... or so I think. The guys I ride with hardly ever seem to have their fans come on - mine is on just about every time we stop. Saturday we were riding in 38-40 degree weather and it was still coming on often. Runs awesome, just wondering if I should be concerned.

    I have the following setup:
    '08 530 - desmogged, JD Jetting kit installed, KTM fuel mixture screw - 1-1/2 out, hardparts fan set up, standard juice w/ water wetter, elevation 4,500' - 10,000' (come on often when riding desert at 1,500' also), occasional pop on decel - not bad, hardparts 13L tank (would this restrict airflow?)

    I don't know that it is a real problem other than drain on the Battery. Any clues... or leave it alone?
  4. Hodakaguy

    Hodakaguy NorthWest Adventure Rider

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    Check to see what deg thermo switch is installed on your setup. There are two different thermo switches that KTM supplied (can't remember right off hand what temp the two switches are), if you have the lower temp switch installed the fan will cycle a lot more often and run a lot longer than the higher deg switch. I run the hotter switch to keep the fan from cycling as much.

    It's possible you have the lower temp switch installed and your friends are running the higher temp switch.

    Hodakaguy
  5. Hodakaguy

    Hodakaguy NorthWest Adventure Rider

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    Sounds pretty normal. What weight oil are you running?

    Hodakaguy
  6. LukeDuke25

    LukeDuke25 Adventurer

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    The JD Jetting Jet Kit usually solved the heat issues from being too lean on the larger KTM's. It is a must-have if you are riding in the desert!
  7. Double Moo

    Double Moo lookin' for adventure

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    Good idea... didn't know they had differing switches. How do I know which I have?


    Just looked -side of the brass switch says 160.08 on one face and 85*80* on the other. 85C = 185F, 80C = 176F, (is this on at 85C and off at 80C?). Or 160.08 equates to 71C... or more likely a part number? What am I really looking for??
  8. Hodakaguy

    Hodakaguy NorthWest Adventure Rider

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    It will be stamped on the side of the thermo switch in Deg C.

    Hodakaguy.
  9. Double Moo

    Double Moo lookin' for adventure

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  10. Hodakaguy

    Hodakaguy NorthWest Adventure Rider

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    Yep sounds like you have the low thermo switch, replace it with the 95-100 switch and I bet the fan runs like your friends bikes. Napa has an equivalent switch that's a lot less $$, someone has posted the Napa part number in the past...I can't remember what it was though...I'd do a search but I'm posting from my phone :-).

    Hodakaguy
  11. Double Moo

    Double Moo lookin' for adventure

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    It's in the above post... 1984 BMW 318i fan control switch.
  12. Hodakaguy

    Hodakaguy NorthWest Adventure Rider

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    Great, I clicked on the link from my phone but it just took me to the NAPA home page with nothing showing, could just be the phone.

    Hodakaguy
  13. Yellow Pig

    Yellow Pig Allergic to Asphalt!

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    This iswould be the best solution if someone made an oil filter cover to connect to the radiator.

    [​IMG]
  14. jesusgatos

    jesusgatos fishing with dynamite

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    I can design whatever kind of adapter you guys want, just don't know enough about the oiling system in these engines to decide where the best place to tap in to pick-up and return oil might be. But if there's really a need for some kind of external oil filter adapter, let me know and am sure we can come up with something...
  15. Bungholio

    Bungholio Been here awhile

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  16. Bungholio

    Bungholio Been here awhile

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    Now the big question is thermostat or no thermostat.

    Good and bad of each choice?

    Is the sole function to warm the engine quicker after starting?
  17. Krazyjohnny

    Krazyjohnny Been here awhile

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    @HG,

    I am running the same as you HG. The Mobil 1 15w50
  18. scottmctag

    scottmctag Well travelled

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    OK since I have done the Water pump enlargement / Samco therm bypass / wetter water in the system the bike is running 10 or so degrees F lower according to the Pro circuit temp strip ( down from 193 F to 182 F approx) on the water pump housing and left radiator and the ambient air temp is up by a couple of degrees ( 75 F ) since my last experiment ( 69 F ) on the same run, however the gear box oil is showing same temp as before 193 F which I reckon is no bad thing !

    [​IMG]

    I check the strips on the water pump housing and radiator match temps when I stop riding if they dont then its a good early indicator there is a problem !
  19. ta2240

    ta2240 Adventurer

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    Just wondering how the 530 feels in the woods compared to a 450? I have a 2011 530 for dual sporting and I sold my 300 XCW which was my woods bike. I am looking for another woods bike and may buy another 300 or go with the 350 or 450 XCF-W. I was thinking of riding the 530 for a couple of races to see if I like the power if a 4-stroke in the woods. Just looking for opinions from guys who have ridden the 530 in the woods and single track.
  20. neduro

    neduro Addict Super Moderator

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