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Thread: yamaha 125

  1. 01-07-2011, 12:11 AM #1
    evey91
    evey91 is offline Registered User New to the board
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    yamaha 125

    looking for some answers i just bought a 1981 yamaha two stroke had a few problems to work out but i can not seem to get it to stay running without holding the choke all the way open i cleaned the carb and still the same problem any ideas
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  2. 01-07-2011, 02:32 AM #2
    Chazz of Blades's Avatar
    Chazz of Blades
    Chazz of Blades is offline Power User Got the holeshot
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    Check your intake boot, make sure it's not cracked. Easy solution is to take carb cleaner, and while the motor is idling spray a bit on the intake boot itself and see if the motor smoothes and speeds up.
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  3. 01-07-2011, 04:43 AM #3
    bcredneck
    bcredneck is offline I can fit a square peg in a round hole. Just give me a hammer and duct tape! Arm chair racerJust too addicted
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    old yamaha carbs suck for that i had a mx 80 2 stork with a auto pop up choke never ran without it wired down even after a carb kit and difrent jets ran fine with the choke even right plug color
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  4. 01-07-2011, 11:45 AM #4
    200XMichigan
    200XMichigan is offline Roostin' Away Arm chair racerRoostin Away
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    probably richen it up a bit, my YT175 is way happier since I have done that.
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  5. 01-07-2011, 08:55 PM #5
    evey91
    evey91 is offline Registered User New to the board
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    I got the machine to idle without the choke on now, but when I throttle it up it sticks high idle if I pull out the choke it goes back to an idle. If i unscrew the choke can that also be cleaned what should I be looking for to see if the choke is bad or needs to be replaced .
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  6. 01-07-2011, 09:17 PM #6
    bcredneck
    bcredneck is offline I can fit a square peg in a round hole. Just give me a hammer and duct tape! Arm chair racerJust too addicted
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    exact same as mine did got new choke parts didnt help at all but my motor ran great with it so i left it
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