So what exactly does 4 stroking mean?

Discussion in 'Motorized Bicycle General Discussion' started by jtgolden, Jul 16, 2011.

  1. jtgolden

    jtgolden New Member

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    I have read on here a lot of people saying the 2 strokes are 4 stroking. What does this mean?

    Thanks
     
  2. Allen_Wrench

    Allen_Wrench Resident Mad Scientist

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    Sometimes, under certain conditions, the HTs fire on every other stroke, rather than every stroke. It happens.
     
  3. Wm Holden

    Wm Holden New Member

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    alot....................
     
  4. Allen_Wrench

    Allen_Wrench Resident Mad Scientist

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    Yeah...sometimes alot. I suppose it does. So don't freak out.
     
  5. ddesens

    ddesens New Member

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    I wanted to ask this same question. Why does it do it and how do you correct it? I think mine does it also. Kinda goes in and out depending on amount of throttle. Kinda feels like a twin cyclinder 2stroke running on 1 cylinder for a few seconds then goes back in.
     
  6. Wm Holden

    Wm Holden New Member

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    Remember...the metals are not of the highest quality....heat is your enemy...gas is the lubricating delivery system....it's really not the end of the world to have it run cooler and with extra oil for a few seconds every now and then.

    as long as the top end is right and the power band is acceptable...run with it.

    JMO



    [​IMG]
     
    #6 Wm Holden, Jul 16, 2011
    Last edited: Jul 16, 2011
  7. biknut

    biknut Active Member

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    I think it's most likely caused by a rich condition.
     
  8. 2door

    2door Moderator
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    And that is the correct answer. Anyway, it's the most common cause. Try going one notch leaner on the needle.
    Tom
     
  9. Goat Herder

    Goat Herder Gutter Rider

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    For me perfectly tuned it will 4 stroke at WOT a little tiny bit on a straight away. Go into a hill at WOT it will not. That is where my hill climbing power is.
     
  10. Allen_Wrench

    Allen_Wrench Resident Mad Scientist

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    Yeah, if it does it too much, you could be running richer than you need to. If you're still in the break-in period though, you may have to expect a bit of this. Indiana's mostly flat, but a twisty street I like to ride on has a bit of the up-and-down. During break-in I would get some 4-stroking through there.
     
  11. ddesens

    ddesens New Member

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    I just hit 100 miles on my motor today. Do you think its broke in yet?
     

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