Results 1 to 11 of 11

Thread: boring question?

  1. #1
    DarkestGKnight's Avatar
    DarkestGKnight is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Nov 2006
    Location
    Babylon
    --
    448

    boring question?

    how long does a top end last when u get it bored? like only if u ride it twice a week and dont beat on it?
    1982 yamaha rx50.
    2001 murray minibike with 5hp.
    fully modded goped.
    250cc 4 stroke shifter kart in the process.

  2. #2
    Join Date
    Oct 2002
    Location
    Northeast
    --
    17,493
    There are allot of factors in that. How it's ridden, what type of oil or premix is used and what ratio, how clean the air filter is kept, how tight the boots seal to the carb, what displacement, who put the top end in and on and on and on.

    If it isn't raced and well maintained it can last well over a year by the casual rider. Think about how many 20yo machines are on the original top end??
    All our government does is distract us while they steal from us, misspend our tax $ and ruin our country

  3. #3
    DarkestGKnight's Avatar
    DarkestGKnight is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Nov 2006
    Location
    Babylon
    --
    448
    tru i dont wanna spend alot of money just for something that will need a new top end soon, well i heard about replateing i think its called, is that when they put the orignal chrome or steel on the cylinder so the orignal piston fits?
    1982 yamaha rx50.
    2001 murray minibike with 5hp.
    fully modded goped.
    250cc 4 stroke shifter kart in the process.

  4. #4
    Join Date
    Jul 2006
    Location
    United States
    --
    7,765
    replating is for nikasil or chrome bore cylinders, its not cheap, if you have a machine that has a borable cylinder your better off, the nikasill is great but if catostrophic failure happens and it scares that cylinder your in for a treat!

  5. #5
    DarkestGKnight's Avatar
    DarkestGKnight is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Nov 2006
    Location
    Babylon
    --
    448
    ok so boring worth it then, i might take up racing on a track tho so like ill have to get it bored every year until the cylinder is crap, then get a new cylinder?
    1982 yamaha rx50.
    2001 murray minibike with 5hp.
    fully modded goped.
    250cc 4 stroke shifter kart in the process.

  6. #6
    Join Date
    Jul 2006
    Location
    United States
    --
    7,765
    well if it IS a nikasil plated cylinder then it cannot be bored and will have to be rechromed

  7. #7
    DarkestGKnight's Avatar
    DarkestGKnight is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Nov 2006
    Location
    Babylon
    --
    448
    ok its not but ill price a boring within the week. thanks
    1982 yamaha rx50.
    2001 murray minibike with 5hp.
    fully modded goped.
    250cc 4 stroke shifter kart in the process.

  8. #8
    Join Date
    Jul 2006
    Location
    western ny
    --
    3,366
    my 200s was bored about 3 or 4 years ago and i just put new rings in. the piston is the same one that was in it. may i ask if its a 4 stroke or 2 stroke ? that also has allot to do with the how long it lasts. ive herd that a small bore job wont do ya much good. if you are boring to get performance get yourself a high compression piston.
    down to parts because i no longer have a place to ride trikes.

    GIT IT RAAAGGGGG !!!!

  9. #9
    DarkestGKnight's Avatar
    DarkestGKnight is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Nov 2006
    Location
    Babylon
    --
    448
    hi its a 2 stroke and no im doing it casue the cylinder is scored and the piston is crap.
    1982 yamaha rx50.
    2001 murray minibike with 5hp.
    fully modded goped.
    250cc 4 stroke shifter kart in the process.

  10. #10
    Join Date
    Jul 2006
    Location
    western ny
    --
    3,366
    ok i dont know how long a atv pinger bore job lasts but i can tell ya my bored out ski doo blizzard was bored in 87 and hasnt bin redone since. i was sad to sell it. anyways man as long as you dont abuse the thing it should last you a while.
    down to parts because i no longer have a place to ride trikes.

    GIT IT RAAAGGGGG !!!!

  11. #11
    DarkestGKnight's Avatar
    DarkestGKnight is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Nov 2006
    Location
    Babylon
    --
    448
    hey its a vintage dirtbike so im not gonna be beating it or riding much till maybe the summer ill take it to the track but even then im gonna basically cruise not beat the hell outta it.
    1982 yamaha rx50.
    2001 murray minibike with 5hp.
    fully modded goped.
    250cc 4 stroke shifter kart in the process.

//ArrowChat Integreation Code //