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compression

  • 01-01-2008 6:16pm
    #1
    apmsystems
    Closed Accounts Posts: 3 ✭


    im thinking of buying a moto x
    alot of ads say the bike has good compression. what is this and how do you check it
    thanks in advance

    .


Comments

  • #2
    colm_c
    Registered Users, Registered Users 2 Posts: 2,032 ✭✭✭colm_c


    I would think it's to do with the shock absorber on it so if you're off-road you get better comfort and aren't rattled to pieces.


  • #3
    Pigeon Reaper
    Registered Users, Registered Users 2 Posts: 1,294 ✭✭✭Pigeon Reaper


    probably not to do with the shocks. If it's a two stroke they're referring to the engine compression to show it doesn't need new piston rings. If it's a four stroke it means the engine isn't shagged.


  • #4
    fdisk
    Closed Accounts Posts: 63 ✭✭fdisk


    Yes - it refers to the compression in the engine - how worn the piston rings and cylinder head are - you can tell when you kick start it - if it's very easy to turn over then it's worn and will need new rings at a minimum - they are fairly easy to replace though.


  • #5
    mastermind2005
    Banned (with Prison Access) Posts: 339 ✭✭mastermind2005


    if you wanna properly test an engines compression... buy a compression tester... unscrew the sparkplug... screw it in and open the throtle full and turn the engine 4 revolutions by the elec start..... will give you a figure in psi....


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