1. 

   dan1dms Member

   Messages:

   42

   Rides:

   gilera runner 172

   after rebuilding my 125/172 engine and fitting a pm tuning 52mm crank.. Do you need to run the engine in or will it be fine?

    

   dan1dms, Jun 15, 2011

   #1
2. 

   tErr0 Administrator Staff Member

   Messages:

   5,816

   So you are asking if you need to run in the crank and main bearings?

    

   tErr0, Jun 15, 2011

   #2
3. 

   dan1dms Member

   Messages:

   42

   Rides:

   gilera runner 172

   ye do i need to rejet my carb after putting in the pm 52 crank?

    

   dan1dms, Jun 19, 2011

   #3
4. 

   tErr0 Administrator Staff Member

   Messages:

   5,816

   You may have to. Every time you fit a new part you should check your jetting just in case.

    

   tErr0, Jun 20, 2011

   #4

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