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Thread: How to Slow Down My ATC 70

  1. #1
    Join Date
    Mar 2006
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    Michigan
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    How to Slow Down My ATC 70

    I have a 73 ATC 70 that I have for my grandson. The problem is he is 3 1/2 years old and wants to go fast and this is his first riding experience. I have put some stops in the throttle but even with it only moving about 1/8 of an inch it still goes to fast in 1st gear or even 2nd or 3rd. Any ideas on how to make it go about a fast walk. He is not able to pull the hand brake and isn't real good at steering yet, so I want to be able to keep up with him without killing my self running. lol
    85 Big Red
    83 Big Red
    84 125m
    85 TRX 125
    73 ATC 70

  2. #2
    Join Date
    Apr 2011
    Location
    Mexico
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    9,019
    Chain the trike to your car, he can tow you and you can use your brakes to set the speed limit. As an added bonus you'll never be too far behind him and you can use your A/C and listen to the radio.

  3. #3
    Join Date
    Dec 2004
    Location
    Baltimore, MD
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    6,088
    Gearing, would be my best suggestion. You should be able to change the front and rear sprockets.
    Nicholson 500x (Project)
    Nicholson 185s
    Nicholson 110 (That takes an atc70 tank)
    Ascott 500 head/350x (Project)
    Homebuilt Racer Chromoly Suspension 110 (Ragin Runt)
    PK Racing Suspension 70
    A+ Inc Suspension 70
    AWS Aluminum 90 frame
    Hi Performance ATC Suspension frame rd350
    Hi Performance ATC Suspension frame 90

  4. #4
    Join Date
    Mar 2006
    Location
    Michigan
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    1,144
    Quote Originally Posted by Vealmonkey View Post
    Gearing, would be my best suggestion. You should be able to change the front and rear sprockets.
    I never thought of that. I will have to see what is on it and go from there. Thanks for the idea.
    85 Big Red
    83 Big Red
    84 125m
    85 TRX 125
    73 ATC 70

  5. #5
    barnett468 is offline FACT ! I have no edit button Arm chair racerThe day begins with 3WW
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    Jan 2013
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    .
    OMG…I almost spit my Cap’n Morgans and Tecate Beer boiler maker all over my computer. I’ve been laughing for 5 minutes straight now. I can’t even look at these posts anymore.


    Ok, some other far less entertaining options are:

    1. Use the suggestion above but use the cruise control instead of the breaks so they don;t overheat at these high speeds.

    2. Loosen the throttle cable so there is more play in and put it in first gear then remove the shifter so he can not shift it.

    3. Lower the gearing and remove the shifter.

    4. Put one of these on it and just pull him around the yard.




    5. Or simply give him away.


    Holy cr_p!

  6. #6
    Join Date
    Jul 2012
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    Seattle, Washington
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    You forgot about filling all 3 wheels with calcium chloride, must be all that captain morgans...

  7. #7
    Join Date
    Mar 2006
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    Michigan
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    Quote Originally Posted by barnett468 View Post
    .
    OMG…I almost spit my Cap’n Morgans and Tecate Beer boiler maker all over my computer. I’ve been laughing for 5 minutes straight now. I can’t even look at these posts anymore.


    Ok, some other far less entertaining options are:

    1. Use the suggestion above but use the cruise control instead of the breaks so they don;t overheat at these high speeds.

    2. Loosen the throttle cable so there is more play in and put it in first gear then remove the shifter so he can not shift it.

    3. Lower the gearing and remove the shifter.

    4. Put one of these on it and just pull him around the yard.




    5. Or simply give him away.


    Holy cr_p!
    I don't see what was so funny. To bad when you enter a reply to a post you can't use proper grammar. It should be brakes not breaks.
    85 Big Red
    83 Big Red
    84 125m
    85 TRX 125
    73 ATC 70

  8. #8
    Join Date
    Apr 2002
    Location
    s.w. michigan
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    6,498
    Gearing is a great idea but I was thinking rev limiter. I done some searching around for small engine rev limiters,,, did not really see anything I would use if in same situation but I got to believe there has to be a adjustable rev limiter out there some where.

  9. #9
    Join Date
    Nov 2013
    Location
    Benson, AZ
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    147
    A pair of eyes goes a long way toward solving this problem....as well as the threat of ending the riding session if the youngsters get going too fast.

    My 4 year old rides a 110 after she demonstrated the ability to apply the brakes. I put in in 3rd gear, low range, and off she goes. Until then, she'd been riding in front of me (on my lap) for the last 6 months. I only had to boot her off once or twice before she figured out not to get on the throttle too much or go up on 2 wheels. No throttle stop needed. Since I like riding anyway, it's no problem to follow her around on my 200 to make sure she's staying safe.

  10. #10
    Join Date
    Dec 2004
    Location
    Baltimore, MD
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    6,088
    You can always install a dead man switch and a long string teather,sort of yt60 like. Maybe adjust the idle down low. And don't worry, we'll make some more Capt'n Morgan for you. We were just doing a run of it today.
    Nicholson 500x (Project)
    Nicholson 185s
    Nicholson 110 (That takes an atc70 tank)
    Ascott 500 head/350x (Project)
    Homebuilt Racer Chromoly Suspension 110 (Ragin Runt)
    PK Racing Suspension 70
    A+ Inc Suspension 70
    AWS Aluminum 90 frame
    Hi Performance ATC Suspension frame rd350
    Hi Performance ATC Suspension frame 90

  11. #11
    Join Date
    Apr 2011
    Location
    Mexico
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    9,019
    Quote Originally Posted by barnett468 View Post
    remove the shifter
    That's not a bad idea. Coupled with a throttle stop and a dead man's switch to the kid's shirt and that would seem pretty safe.

  12. #12
    Join Date
    Apr 2010
    Location
    Cold Lake, Alberta, Canada
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    Did everyone forget about the limiter on the 78 and up throttles?

    Get an older throttle with the screw hole on the front side... You just need to screw in and tighten the nut to adjust the speed.
    He can then punch it and it won't matter.

    Click image for larger version. 

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  13. #13
    Join Date
    Dec 2009
    Location
    Oklahoma
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    My son started on a 50cc dirt bike with training wheels unter the footpegs that were 36 inches wide. It had a washer in the header pipe to restrict flow and also the throttle screw but this still was to fast so I would tie a rope to the grab bar and the other end to my Mountain Bike and I was the brakes when I needed to be. My rope was like 12 ft long so we had 10 ft or so between us. It worked great and no accidents.

  14. #14
    briano is offline Got The Holeshot Arm chair racerJust too addicted
    Join Date
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    If your throttle only moves an 1/8 and it's still to fast I would also check into gearing it down.


    Nice job Barnett, he is trying to get his grandson into trikes and you find it funny that he wants to do it safely. What a pen!s

  15. #15
    Join Date
    Oct 2013
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    No offense but the mental picture of grandpa gasping to keep up with the little guy when all he wants do do is go fast, is actually pretty funny, and so was El Camexicans post

    I like mattdragontamers throttle idea, all these ideas are good ones and then i would just add....necessary riding gear and a wide open space to start.

    Cool thing to be doing

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