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Thread: Anyone know about Two-stroke engines?

  1. 01-25-2010, 06:56 AM #1
    chipper3663
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    Default Anyone know about Two-stroke engines?

    I was trying to start my 2stroke pocket bike and the pull cord was completely stuck and few days before i ran straight gas in it. do i need need a rebuild? how would i go about solving this?
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  2. 02-03-2010, 04:10 AM #2
    chipper3663
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    anyone?
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  3. 02-03-2010, 05:41 AM #3
    tnomud
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    is the motor turning?

    Pull the plug and put a squirt of oil down in the cylinder. Put the plug back in, and try to push start it. I can't speak for you scooters motor, but I did about 50 laps at Tally (at 110MPH on a 100 degree day) on my KTM 2 stroke before I realized I didn't add oil to the tank on the way out.
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  4. 02-03-2010, 10:37 AM #4
    chipper3663
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    ill try and get back to you
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  5. 02-03-2010, 08:07 PM #5
    LilToySupra
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    sounds like an oil/fuel ratio screw up somewhere... might need to tear it down and look at the pistons just to check...
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  6. 02-03-2010, 10:03 PM #6
    chipper3663
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    yeah i was running 100% GAS not even a ratio of oil so i guess thats why its stuck but ill try to squirt oil and if that does nothing i guess ill have to take it apart and see the internals thanks for the advice
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  7. 02-03-2010, 10:24 PM #7
    Elbow
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    Yeahhhhh....may want to start running a mix...lol.
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  8. 02-04-2010, 03:00 AM #8
    slostang
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    sounds like its locked up. lulz
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  9. 02-04-2010, 03:54 PM #9
    LilToySupra
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    oh yeah!!!! imagine running your engine without oil..... whatcha think is gunna happen?
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  10. 02-04-2010, 04:42 PM #10
    chipper3663
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    You save oil? haha but yeah i need a rebuild fosho its seized
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  11. 02-04-2010, 06:35 PM #11
    boost-freak
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    straight gas in a two stroke not good, will lock up piston
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  12. 02-04-2010, 06:37 PM #12
    boost-freak
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    and shred the crank, and rod bearing crank end
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  13. 02-05-2010, 12:46 PM #13
    chipper3663
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    Anybody knoe where i can get some info on rebuilding little 2 stroke engines?
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  14. 02-05-2010, 12:50 PM #14
    teh_mugen18
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    Quote Originally Posted by chipper3663 View Post
    Anybody knoe where i can get some info on rebuilding little 2 stroke engines?

    Its kinda easy... new ring, hone cylinder, usual engine rebuild stuff.

    I used to play with building/rebuilding these little motors back before i got into cars. Built a 36cc scooter and had it walking circles around a 50cc pocketbike that some kid had who lived up the street from me.

    If you want some more info...i would check out Gopednation.com, its kinda like the H-T for small 2stroke/4stroke engines/pocketbikes/scooters n' whatnot.


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