Sputtering Problem?
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  1. #1
    Senior Member thumper's Avatar
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    Oct 2010
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    One of my 2008 TW's has started sputtering when taking off from a stop sign.

    It revs cleanly from mid-range on up, its just that if feels like its bogging down and stuttering when I take off.

    I raised the Idle a little bit and that helped the sputtering, but now it takes 2 or 3 seconds for the idle to drop back

    down to normal when I stop.

    I've got the idle set at approximately 1300 rpm per the manual.

    Any suggestions?

    I opened the float bowel and it was clean with no signs of water or debris.

    I may try some sea foam tonight.

    Just overall feels like its loosing power compared to my other identical one.

    I recently rebuilt the top end and had everything apart so I already checked the carb boot and the intake

    boot areas for air leaks, and they all look ok.

    Thanks for any suggestions.

    Igofar

  2. #2
    Senior Member thumper's Avatar
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    Turns out I was over thinking this again....

    I poured in 2 oz of seafoam and rode it 20 miles on the hwy.

    By the time I got home, no more sputtering, hesitation, or bogging.

    +10 for Seafoam!

  3. #3
    Senior Member Henrici's Avatar
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    Was that 2oz to a full tanks?

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  5. #4
    Senior Member thumper's Avatar
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    Quote Originally Posted by Henrici View Post
    Was that 2oz to a full tanks?




    1oz per gal. since my tank holds 1.8 gal, I simply rounded off at 2oz per tank. works great.

    Now every time I do an oil change (1K) I add 2oz of seafoam.

    Everytime I fill the tank when riding, I add 1/2 oz of marvel mystery oil to keep the top end

    clean and lubricated.

    hope this helps.

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