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  1. #1

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    May 2005
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    97 speedster motor issue ??

    Just rebuilt one motor - ran great for a short while - 1/2 hour - now runs like crap - 150 psi - seems like it is out of time? Other motor runs great - swapped coils - no change - is it possible that the mpem can cause an issue with one motor and not the other ?

    otherwise I think I have a crank seal issue - starts really hard - runs rough in the middle - seems to be backfiring somewhat

    I would appreciate any help

    Thanks

    Tim


  2. #2

    Join Date
    May 2005
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    took motor out - the rotary valve gear is slipping - so fuel timing was going all over.

  3. #3

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    back together - running great....

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