Motorcycle Club » Star 650 Classic & Custom

Can Running Lean cause Damage?

3 posts from 3 voices
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  1. twmohz
    #

    I bought my wife a new 2009 v-star 650 custom and hated the sound of the stockers, so I put on the cobra dragsters on and love the sound. My first question, Is the bike now running lean? and if so, what damage could be done?

    Second, should I spend the $$$ for a jet kit, would it run better? and how hard is it to Install?

    Thx for the info in advance.

  2. 4mrAkankmpr
    #

    It is common opinion that 650s with just slip on exhausts don't need rejetting unless the intake is modified. However, these bikes are setup from the factory to run a bit lean.

  3. girgnt1zbt
    #

    Since you only changed exhaust, you should be fine with stock jets. If you decide to rejet though, I recommend getting everything you need (including the stainless screws) from Ziv.

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