Engine problems after oil change

Discussion in 'Thumpers' started by juansg, Oct 21, 2013.

  1. juansg

    juansg n00b

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    I just finished changing oil and oil filter on my DRZ400SM. I've already done this a few times without any issues. However, after riding for 10 minutes after the oil change, I noticed how the engine would skip a beat from time to time at highway speeds. It's also easy to tell that there is something wrong because when trying to accelerate aggressively from low speeds, it feels jerky and is also easy to hear that the engine isn't accelerating smoothly.

    When I got home (20 minutes ride), I noticed that the engine was very hot, much more than usual.

    I'm not sure what's going on. I used the same oil filter and oil as usual (recommended Suzuki brand 4 stroke 10w-40 oil. The only thing I can think of is that, this time, I forgot to unscrew the oil dipstick before draining the old oil. Is it possible that because of that lack of vent (dipstick hole) I didn't drain all the oil before I added 2 quarts? would some extra oil have such a big impact?

    thanks
    #1
  2. Waco

    Waco Renegade Sickle Hound

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    Way too much oil can be bad. A little extra shouldn't hurt. How much does it show on the dipstick? If it's overfilled, you could drain a little, run it, and check it again. I don't know much about this particular bike. Is there any chance that the filter is installed incorrectly?
    #2
  3. festa

    festa out n about

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    Bad plug or faulty lead
    #3
  4. troidus

    troidus Long timer

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    Or a bad oil filter. Or if it has variable valve timing, a piece of crud is lodged in the cam mechanism.
    #4
  5. Switchblade315

    Switchblade315 Long timer

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    oil filter in backwards. seen people do it before. just not watching what they where doing picked it up and put it in the wrong way. cant flow oil to the top end.
    #5
  6. ohgood

    ohgood Just givver tha berries !!!

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    I wouldn't think the filter cover would fit on of or was backwards. does it really?

    wow
    #6
  7. baloneyskin daddy

    baloneyskin daddy bikaholic

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    I've seen it done on 4-wheelers a few times so it can be done and after 10 minutes it ain't gonna be pretty.
    #7
  8. 1P8RIOT

    1P8RIOT Been here awhile

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    I've seen it a few times myself on street bikes too. :deal
    #8
  9. kartl

    kartl Adventurer

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    I think its a dirty air filter or bad plugs. When was the last time you cleaned or replace them.
    #9
  10. troidus

    troidus Long timer

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    That's not going to bake the top of the engine. Dry cam bearings sure would, though.
    #10
  11. trailer Rails

    trailer Rails Long timer

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    It has been a while since I had a DRZ400 but I believe 2 quarts is too much. Also I seem to remember there was a pretty specific way to drain the oil from that bike, I can't remember right now. But not removing the dipstick may have held a lot of oil back.
    #11
  12. Switchblade315

    Switchblade315 Long timer

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    some bikes you can because of the indention in the filter for the spring that helps hold them in place.
    #12
  13. sailah

    sailah Lampin' it

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    The mention of those words makes me shiver
    #13
  14. Fixnfly

    Fixnfly Been here awhile

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    It's impossible to put the oil filter in backwards on this bike. The housing cover will not go back on. There are two drain plugs.
    Was the frame AND crankcase drain plug removed?
    #14
  15. ohgood

    ohgood Just givver tha berries !!!

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    That's what i was thinking...
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  16. NICO

    NICO Save the USA

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    Would an overfill cause the oil to foam, limiting the pump's ability to circulate it?
    #16
  17. joexr

    joexr Banned

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    Possibly. I could also be belching oil into the airbox and filter.
    #17
  18. Stan_R80/7

    Stan_R80/7 Beastly Gnarly

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    #18
  19. kartl

    kartl Adventurer

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    I would say yes that is very possible and due to this it can also increase the pressure that can cause internal damage. Running to much oil is almost the same with running with out oil at all.
    #19
  20. viverrid

    viverrid not dead yet

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    DRZ is dry sump and nothing to do with hydraulic valves or hydraulically driven variable timing.

    The bike needs to be recently run to check the oil level. The dipstick is way up on the frame that acts as the oil tank. It is not down on the case.
    #20