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  1. vegetable

    Crankshaft drill and tap

    hey all, just a quick question, am I able to drill out a hole and tap it to accept a bolt in my crankshaft? the shaft doesnt have a hole for one and I want to use a cvt drive with this engine. attached is the shaft, i do have a drill press if that makes things easier to start the drill
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    snowblower 2 stroke modifications

    Hey all, I recently picked up a 2 stroke motor from a snowblower to use on one of my projects. Rated at 6.5 hp with 141cc, what size carburetor should i run and what kind of pipe? I was thinking a 24mm carburetor and i recently picked up a world circuit pipe from a kx250 that im going to cut and...
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    How to fix an untrue wheel

    every time i buy a wheel from gopowersports this always happens https://streamable.com/ryc4av getting a bit tired of my drive wheels doing this, i have no money to buy another (and it probably will be the same), how can i fix it?
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    my motovox project

    finally time i posted something like this, wanted to show through what has been a huge learning experience building my motovox. I still have loads to learn but its come so far from when I first picked up the roller a couple years ago. 10/06/21 - frame acquired and test engine mocked up at my...
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    how to fit cvt without engine risers

    trying to figure out how to fit a torque converter to my 212 without raising the engine, i have the adjustable motor mount plate from GPS, i tried cutting the metal between the holes but its too slow, the only way i see fitting it with just a half inch of height. slotting the holes will let me...
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    How to adjust float height?

    I have a 24mm mikuni on my setup and cant seem to fix a leaky fuel bowl. It drips gas a little bit out the overflow when i start to ride the bike, and dont know why. I had to replace the needle a couple times due to running a fuel pump and attempting to adjust float height. Im not sure if i did...
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    ec 263r... worth it for big power?

    been looking into the 263r rotating assembly on their website. I want to build a 3" block at some point and found these kits for sale on EC's website. Is it all drop in or do i need to machine the piston to compensate for the 58mm stroke? I dont want that high of a compression ratio (10:1 is my...
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    piston to valve clearance

    Would I be ok running a .308 cam with 1.2 ratio rockers, .065 milled head and a .032 head gasket? I want to make sure the valves wont be able to hit the piston but since this is my first time doing up a head like this how can i check
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    Tillotson 212 seems to be cutting out around 6000 rpm and not revving further

    Hi, I have a stage 2 tillotson and it seems like when i get to around 6000 rpm the engines cuts out a little and will prevent me from revving out the engine even more. Any ideas? Here is a video showcasing the issue. https://streamable.com/8jnn0f
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    anyone know how to replicate this setup?

    I've been researching on how to do a charging system with a strong aluminum flywheel just like in Red Beard's video? reason why is I have electrics on my bike and dont want to constantly charge my battery, and as well as running cdi ignition (i also do not have electric start)
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    420cc turbo oiling

    At moment planning to build a powerful 420cc with those cheap vz21 turbos and have a question about how i would get oil to the turbo. could I run bungs off the OEM drain bolts and use an electic oil pump to get oil pressure through the turbo? or should I have a separate tank for the oil and oil...
  12. vegetable

    tillotson 212 billet flywheel installed ran for a bit and now only pops a few times

    i have a tilly 212 on which i just installed a billet flywheel, it ran great for a few lapd around my yard before dying and unable to be restarted. every time i try to restart it, all it does is run for a half second and then immediately die. if i get throttle on it, it backfires through the...
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    minibike drive wheel has a lot of drag

    Hi all, my wheel seems to drag a lot when i was lubricating my chain today. I was spinning the wheel around and it just barely went around 1.5 times before stopping. Is this normal chain drag or is it drag caused from the brakes? I will try to get a video of it sometime tomorrow
  14. vegetable

    Tillotson 212 22mm carb bolts loosened while riding, now wont start

    I was riding my mini when i suddenly lost power and when i pulled into my garage i saw my carb manifold bolts on the head were loose. took engine off cause I needed to do an oil change anyway, when i finished reassembly of the carb bolts (tightened down), replaced the gasket on the surface where...
  15. vegetable

    header wrap?

    I want to get a center exit style pipe for my mini bike to improve the way it looks, but the only issue is that I am running a taillight that goes right below where the exhaust will sit. I don't want to fry my taillight so I decided that wrapping the exhaust would be the best way. But, this is...
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    swing arm questions

    looking to build a rear swing arm for my motovox and i have a few questions 1. what is a sutable amount of tube to get for making one? 2. how can i keep the chain tight with a clutch to accommodate for the swing arm travelling? 3. how can i make the rear axle brackets? is there tube that looks...
  17. vegetable

    Not sure if i should be worried... but

    my brand new tillotson 212cc i just finished building (billet rod, 22mm mikuni, header, air filter, <1hr run time) runs perfectly fine, but when i rev it up it puffs blue smoke. Should I be worried, or is this normal for not broken in engines? I can get a video if need be on what it is doing
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    Help! not sure if my wiring is wrong or its that the connections arent permanently secured

    I have a minibike and ive been wanting to put some lights on it dor a while now. once i did get all of the parts (except for fuse block, still being shipped) i wired it up to teo pigtails and they seemed to work on their own. now when i touch the wires to each terminal (two separate ground wites...
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    Help! Predator 212 won't start no matter what I do

    So I have a non-hemi 212 predator, and it ran fine before I started doing mods to it. When I installed the stage 1 kit from GPS, I couldn't run the engine off of choke for more than a few seconds, and it would eventually die out anyway. I replaced the stock carburetor and it still did the same...
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