speed

  1. TheDullCarbide

    4 Speed Jackshaft Design

    I'm not sure if someone already thought of this one, but I thought I might as well get a laugh out of it. I dreamt this up a few years ago. Hope this diagram makes sense: J P A T C O K ---~~~~~~~== Fourth...
  2. B

    2 speed jackshaft won't shift

    I have 2 Trailhorse's one with a brand new 2 speed and one with the original 1970 2 speed and nether of them seem to shift. Not sure if the Rmp's or speed isn't getting up high enough to shift? Both have new predator engines. Any ideas. Thanks
  3. Baja_brandon96

    Doodlebug Predator swap....low top speed?

    Hey all! Forgive me for being spotty in my postings, i have rather poor internet here in camp. So after getting my Doodlebug running well, i enjoyed it for a bit with the stock 97cc engine. Was quite reliable, and easy to handle. Struggled with inclines, but it had a respectable 27mph top...
  4. S

    What is this mini bike with go power wheels & a 2 speed belt driven drivetrain

    Curious to find out what this is. The engine clutch is a dual pulley. the kick lever engages one of the two belts. The brake is an interesting set up as it has a belt wrapped around a pulley. any help would be appreciated
  5. J

    2 speed set up

    Hello, For sale is a complete 2 speed set up. Used for less than 1 hour then removed and stored a few years ago. Jack shaft mount is a heavy duty home made unit. 3/4 " max torque engine clutch & Comet 2 speed transmission. 12 tooth sprocket to rear wheel. $220.00 shipped. Postal Money order...
  6. Doodads

    Complete 2 speed with Adj. Jackshaft plates

    Bought 2 speed jackshaft and clutch separately, both as NOS here on OMB. Adjustable jackshaft kit bearings and collars all new from OMB WHS. Asking $250 for all including USPS. Prefer PayPal as a gift. Packed and ready to go. Ask any questions and I'll do my best to answer. Please PM only, per...
  7. J

    question on 2 speed

    Having owned several Honda 90's with a 2 speed hi/lo setting, I keep thinking a mini trail bike could use one. Only thing I see is a 2 speed clutch. I am hoping to build a bike with a TC and a jack shaft. I remember the early Honda 90's and some of the Suzuki 185's came with two rear sprockets...
  8. J

    1972 Honda ct-70 frame -4 speed clutch frame $195

    Frame has damage $195-original 4 speed clutch frame
  9. G

    New Old Stock Comet 2 Speed Clutch

    I have a new never used Comet 2 speed jackshaft clutch I bought for a project that never materialized. Price is $160.00 shipping from 90242 Torque converter shown in photos is available in a separate post and is not included in this sale. more photos here...
  10. C

    Reducing top end speed

    Good day all I need sounding board for my thoughts on how to reduce top end speed. Recently purchased what I believe is a doodle bug, and with the current gear and engine set up the online calculators show me a top speed of 31mph (stock tires, 1:5 ratio and 3600 rpms). Way too quick for my 8...
  11. Not so mini bike

    NOS Comet 2 speed jackshaft setup

    Like it says up there. $158 shipped
  12. markus

    Lil indian 2 speed engine clutch wanted other LI parts as well buy/trade

    I have an NOS driven assembly on the way and would like to find the correct 2 speed dual sprocket clutch if possible only because If I go original Its exposed so its gotta be the right clutch. complete clutch in good shape only though please. Also want/need an original 1968 only chainguard...
  13. Woody212

    Sears Super 2 Speed resto

    Bought this basket case last June. I just finished it today and took the first ride!
  14. Jockey

    Need stock predator 60363 carb low speed jet

    I am in need of a stock low speed/idle jet for a predator SP 60363 carb.
  15. james ackerman

    Comet 2 speed jac-mount help

    I bought this comet jac-mount just like it is, I know it's for a 2 speed setup, but I'm confused on how the setup is aranged on the jackshaft. In the the ad it say's manual shift. I'm use to the automatic shifting 2 speed setups. Any info appreciated. Hopefully someone has a photo of a...
  16. Woody212

    2 speed engine clutch 5/8" shaft

    Rebuilding a Super 2 Speed and need the engine clutch. Not pick on brand/style. Thanks
  17. B

    1969 Rupp 2 speed slipping-need help

    i have a 1969 all original Rupp Roadster. I have issues with the transmission slipping going from 1st gear to 2nd gear. I replaced the spag bearing the first time and it was perfect. 6 months later it was doing it again so i replaced again. It is better but still have to feather the gas to get...
  18. B

    1969 Rupp 2 speed slipping-need help

    i have a 1969 all original Rupp Roadster. I have issues with the transmission slipping going from 1st gear to 2nd gear. I replaced the spag bearing the first time and it was perfect. 6 months later it was doing it again so i replaced again. It is better but still have to feather the gas to get...
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