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  1. #1
    Ultra250XRider's Avatar
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    A Few Questions About Timing Advance

    There are a few threads here about timing advance, but some of my questions may be spread out all between long multiple threads over this forum. So here are my questions.
    • Is there a thread that shows step by step how to do the mod? (Like Skip has done on other modís.)
    • Does this void the warranty?
    • I know the pros, but what are the cons?
    • What about fuel octane?
    • What does this do to fuel usage?
    • Is this ok to do to 07 and 08ís?
    • Anything else I need to know?


  2. #2
    benjahw benjahw's Avatar
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    Quote Originally Posted by Ultra250XRider View Post
    There are a few threads here about timing advance, but some of my questions may be spread out all between long multiple threads over this forum. So here are my questions.
    • Is there a thread that shows step by step how to do the mod? (Like Skip has done on other mod’s.)
    • Does this void the warranty?
    • I know the pros, but what are the cons?
    • What about fuel octane?
    • What does this do to fuel usage?
    • Is this ok to do to 07 and 08’s?
    • Anything else I need to know?
    Ive just read up on this over at 250xtech.com...

    I didnt really see a step by step. but there is a parts breakdown on that site, or you can see the parts breakdown on kawasaki.com then go to parts diagrams. All you really do is take the cover off on front side of engine (4 12 mm bolts. ) then take out the 14 mm bolt that holds the timing wheel on (DONT DROP THE WASHER IN YOUR ENGINE W/ THE COVER OFF!). once you have the timing wheel you grind the part in the picture thats red. 1mm for 6 degree timing advance (recommended) I ordered a new timing wheel from r & d for 20 bucks shipped so i still have the old one. once you grind it with a dremel then put her back together. make sure you rotate the wheel to new position tho. i have not done it yet but will when i get my ski back.


    sounds like it....

    -might void warranty, however i doubt your mechanic will ever see it.
    -cons - engine turning higher rpm. may not last quite as long
    -must use 93 octane to be safe.
    -some say improves fuel efficiency
    -sounds like it works great on both. i would say it is safer for an 07 because they run richer.

    Hope this helps. anyone chime in if ive read stuff wrong.

  3. #3
    benjahw benjahw's Avatar
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    oops. pictures!
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  4. #4
    benjahw benjahw's Avatar
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    better pic
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  5. #5
    AaronC's Avatar
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    Is anyone running more timing than 6? Has there been any gains over 6? I'm not opposed to mixing in some race gas.

  6. #6
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    If you don't know what your doing than advancing timing is like playing with fire in a novice tuners hands.

    But, here is what your tying to achieve:

    You want to put as much timing lead into the motor to obtain MBT (Maximum Brake Torque) more than this and your torque drops off dramatically and you start to detonate the motor. Less than MBT and you lose (give up) power.

    What you need to remember this is all FUEL DEPENDENT! higher octane = higher advance (ignition lead) allowed before detonation.

    Hope that help ya.

    Shawn

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