2 Stroke Scooter Cylinder Break In

Discussion in 'OT Driven' started by RalphL, May 27, 2008.

  1. RalphL

    RalphL Active Member

    Joined:
    Nov 13, 2004
    Messages:
    14,951
    Likes Received:
    1
    Location:
    CT/Philly
    I got a 70cc kit for my scoot and was wondering how to break it in. I was thinking of running it a little rich (pre mixing 50 or 75:1 in the tank in addition to the oil injection) with a non synthetic. Then riding it for about 10 minutes then letting it cool only driving half throttle and not accelerating hard. ill do this for the first tank then drive it normally.
     
  2. PEnGUiN188

    PEnGUiN188 New Member

    Joined:
    Mar 28, 2007
    Messages:
    5,835
    Likes Received:
    0
    Location:
    Cincinnati, Ohio
    Just make sure you let it warm up before you start riding it.
     
  3. 3x

    3x New Member

    Joined:
    Jan 3, 2005
    Messages:
    22,070
    Likes Received:
    0
    Location:
    hella bro*cal
    First of all, how big is your tank? Id say use atleast a gallon to break it in riding no more than half throttle, letting it cool every half hour atleast.
     
  4. RalphL

    RalphL Active Member

    Joined:
    Nov 13, 2004
    Messages:
    14,951
    Likes Received:
    1
    Location:
    CT/Philly
    a little over a gallon
     
  5. ericande

    ericande Active Member

    Joined:
    Feb 9, 2007
    Messages:
    1,294
    Likes Received:
    0
    My gf just bought a 150cc 4 stroke and I broke it in by testing it's top speed most of the way home. Then we rode it two up and tested it's top speed again, then I changed the oil. Done.
     
  6. XR250rdr

    XR250rdr OT Supporter

    Joined:
    Mar 1, 2004
    Messages:
    24,469
    Likes Received:
    21
    Location:
    Ca
    Just warm it up and go ride it hard. Don't mess with the oil mixture ratio.
     
  7. squid

    squid braap

    Joined:
    Sep 3, 2007
    Messages:
    4,148
    Likes Received:
    0
    Location:
    91403
    Have you consulted the owners manual for break-in procedures rec'd by the factory?
     
  8. RalphL

    RalphL Active Member

    Joined:
    Nov 13, 2004
    Messages:
    14,951
    Likes Received:
    1
    Location:
    CT/Philly
    should be here tomorrow or the day after :/
     
  9. 1stgenrocks

    1stgenrocks New Member

    Joined:
    Oct 30, 2006
    Messages:
    1,345
    Likes Received:
    0
    Location:
    PA
    look up the motoman break in. its based on racing bikes but will work for anything. basicly since all the parts are machined more better nowadays then they used to be a "soft" break in period isn't required and can actually hurt the motor more then help it. just let it warm up then take it out and run it hard.
     
  10. squid

    squid braap

    Joined:
    Sep 3, 2007
    Messages:
    4,148
    Likes Received:
    0
    Location:
    91403
    Not true. My Husky blew up because the previous owner bought into this theory. I rebuilt the motor and broke it in soft (the way a 40-year Husky mechanic and racer recommended) and it's far healthier and coughing up much less metal. The motoman breakin was designed for sportbikes and even there there's some debate on the matter.
     
  11. RalphL

    RalphL Active Member

    Joined:
    Nov 13, 2004
    Messages:
    14,951
    Likes Received:
    1
    Location:
    CT/Philly
    ill run it light for a bit
    let it cool
    run it with very short WOT bursts
    let it cool
    run it with longer WOT burst
    let it cool
    beat the ever loving piss out of it
     

Share This Page