What else can be done to maximize shitty Chinese engines

Discussion in 'Performance Mods' started by 665 neighbor of the beast, Mar 23, 2018.

  1. 665 neighbor of the beast

    665 neighbor of the beast New Member

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    So far I’ve replaced every shitty, self stripping nut and bolt I can. I live in the US so finding metric bolts is sometimes a challenge. I reinforced the engine mounts and chain guide and placed make shift rubber shocks between the frame and the engine to stop it from shaking so hard the chain slips off. I went through and put gasket seal on the carb, head, and exhaust. I replaced the air filter and spark plug and sealed the line from the gas tank. I wanted to share everything I thought of that can be done and didn’t want to sift through forums to figure out if there’s anything else
     

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  2. 665 neighbor of the beast

    665 neighbor of the beast New Member

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    It’s a little janky, but everything seems to have helped
     

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  3. FurryOnTheInside

    FurryOnTheInside Well-Known Member

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    If you'd posted in the Introduce Yourself subforum first, you would have found these threads
    https://motoredbikes.com/threads/the-crash-course-for-motoredbike-noobs.10392/
    and
    https://motoredbikes.com/threads/what-every-noob-needs-to-read.34942/

    It is not possible to list everything that can be done to improve the generic 2-stroke in a single reply anyway. For one thing, there's choices for you to make based on your intended use for the bike. You really need to learn about the very basics and ask more specific questions.

    Go sift. ;)




    Also try holding the camera the other way around. :p :rolleyes:
     
  4. bakaneko

    bakaneko Active Member

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    i think the most popular is the chain tensioner. your rubber boot is not going to work. this things comes loose and hits your spoke at 20+ mph and thats your wheel or more destroyed.
     
  5. CrazyDan

    CrazyDan Well-Known Member

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    Try to get your carb to sit level, its in a horrid position in that picture.
     
  6. INTP_ty

    INTP_ty Member

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    Look at all these helpers! Be joyous young lad’

    Weld engine mounts & get rid of that tensioner. When you replace the hardware, keep the studs for both the intake & exhaust. -Do not use bolts as an alternative! Find a dremel. Clean up the casting sludge that’s usually built up in the intake and exhausts ports near the piston. I did not tell you to bore them out either -not even a touch. Make sure there’s no overhang in your ports. This includes your gasket.

    You feel like it, replace the gas tank. Make one. You don’t need two filters. Either pick up an in-line one at your nearest auto store or simply use the petcock that came with your tank -there’s a filter in there.

    Looks like a 700c. That rear sprocket clamp will most likely reign destraut on your rims/tires. Pick up a rim that includes a disc brake. Thread your sprocket onto that. I didn’t say to buy an aftermarket-motor-bicycle specific clambshell mount either. Save your money & just go straight for the rim.



    My first 700c HT did like 37 mph
     
  7. Brickyard

    Brickyard New Member

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    Remove rubber from motor mount, true motor, chain tensioner, and sprocket and keep chain tensioned with no more than 1 inch of vertical play. Now you won’t have to worry about the chain jumping.
     
  8. wheelbender6

    wheelbender6 Well-Known Member

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    Centrifugal clutch kit, if you ride in traffic.
     
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