2 stroke

  1. Vendedda

    A few questions from a new Builder...

    So I purchased an older used 2 stroke bike from a guy. First time ever riding one of these things, and sooo much fun 👍😁 Worked pretty good for a while, but now its having some issues. So I decided to try to build one on my own for the first time brand new. Ordered an 80cc PK80 off Amazon. A...
  2. P

    Motor mount problems

    I have a question about how I can mount my motor to my 26 inch mountain bike, the rear mount works fine but the bottom mount is far too small, I’m sure some of you have ran into this problem I’ll post pictures in a bit.
  3. Astraeus

    Where to order and what is the best high compression racing head to get? (66cc)

    anyone have a recommendation of a site i can order a good high compression head for my 66cc 2 stroke? i ordered the thunder shark pro racing kit but there was so many things wrong with the kit and the company refused to fix any of the issues so am here asking for some help when i finally got it...
  4. C

    best 2 stroke spark plug?

    Hello.I just bought a new Chinagirl 2 stroke 80cc(actually a 66 cc) and i read that the spark plugs are a problem. I will buy the best oil to mix with the fuel...so 32:1 for break in and 40:1 after break in ratios are good?I want it to be very reliable since i will ride it like 130 km a day.i...
  5. C

    what 2 stroke engine tu buy?

    Hello i had a lot of problems with a 4 stroke huasheng....so change of plans i want to buy a new 2 stroke kit and i need your advice please.What kit is reliable?how to maintain it?what cilindrical capacity is the best?50,80?i want to deliver food with it so i need it to be reliable and ,if...
  6. Motorized Neo Cycles

    My ultimate build!!!

    So stoked to finally be practically done with this build. I ordered all the parts individually from Amazon and Zeda Motorsports. I've named her El Diablo. 9.5 Hp Case Reed FRANKENSTEIN motor BBR Tuning gas tank frame CDHPower Triple tree forks CDHPower Mag Wheels w/rear disc brake adapter & 36...
  7. A

    Tips for better control over bike

    My friend just completed his build. When i tried to ride that that was a lot of power for me and hard to control. I am just wondering how to release clutch and how to give it takeoff correctly? Any tips n tricks will be very appriciated.
  8. C

    motor bike won't spark

    hello, my bike won't start. as far as i can see, the bike will not spark. i checked the CGI and the magneto coil and the wires. only thing i can see is that the thing wont spark and i cant figure out how to fix it.
  9. Sharif

    Motorized Bicycle power output going on and off (Noise)

    Was going off to work today all happy after I sorted few more things on my bike today all for another issue to arise, but this time worried it may be something serious. Some background info first. Engine is on roughly 300 KMs (+-50KM) . Stock kit NT Carb, no aftermarket parts yet, apart from...
  10. B

    Why the price difference

    Why does a black engine kit cost more than a siver kit and they both come with same parts nothing more or less
  11. Jag

    Carby Zeda Dio Reed Tuning, Backfiring

    I have a 66cc BikeBerry bottom end and a Zeda DioReed top end, ported W/ high compression head and expansion chamber. (Just Rebuilt) Can only get it running for a few minutes before it dies, hardly any throttle response and won't really rev, and lots of oil spitting out the exhaust. Its also is...
  12. B

    Bikeberry Builds Complete Motorized Bike Giveaway

    Welcome to BikeBerry Builds! The show where we take new or old bicycles and overhaul them with the latest engine kits and performance parts. But that's not it, don't miss out on this awesome opportunity to take home your very own Micargi Pantera Motorized Bike Build because at the end of the...
  13. N

    Need help with idle

    I just got my bike back up after a few years and it runs fine. However when I pull the left lever and stop the bike so it idles, the engine gets incredibly loud and starts vibrating hard. I've adjusted the idle pin thing in the carb in a few positions and it's the same. Any advice for getting my...
  14. Rin

    Which 2 stroke motor is better ?

    Going to get zio reed and carburetor, expansion chamber, high compression head and high performance cdi, which of these motors will be better for these modifications? https://www.bikeberry.com/flying-horse-66-80cc-epa-approved-black-angle-fire-2-stroke-bicycle-engine-kit.html...
  15. J

    Bucking bar sticking out too far......?

    It started yesterday, I put around 20 miles on the bike throughout the day, everything was running perfect. When all of a sudden the bike began to high rev and I lost power. The clutch would not engage with the handle released ( and all was adjusted fine). The rear wheel was free spinning...
  16. J

    Missing clutch cover spring....? needed or not?

    So I've put near 2000 miles on this motor in the past. It has been sitting for about a year until this new bike build. I opened the clutch cover to grease and adjust the clutch as needed. And I noticed the spring under the clutch pad cover is missing. Now obvously, the spring is not completely...
  17. Will'smotobikes19

    Best carb for 74cc stroker engine?

    Hey guys just wanted to ask what carb setup you guys recommend for a 48mm bore x 41mm stroke engine I'm building. The ports are 40mm. Would a 19mm delorto clone with a #90 jet be good? it is a iron lined cylinder.
  18. Will'smotobikes19

    New performance build questions

    Hey guys I just purchased some parts for my next bike build. I got a 48mm iron sleeved cylinder, windowed flat top piston, 3mm stroker crank, an ebay 66cc/80cc kit also the smaller saucer style high compression head, regina chain #415 and some cnc aluminum grips. An ngk b5hs as well. Since I'm...
  19. K

    Engine Trouble Cylinder coating question

    Can anyone tell me whats going on here what is that residue on the cylinder ,also is this cylinder coated, and if it is how thick is it, can it be bored to remove the old coating and re-coated ?, its a Kawasaki cylinder from the 70s , were they originally coated from the factory ?
  20. Will'smotobikes19

    Belt drive 2 stroke budget build

    I've just been going through ideas I had after looking at a few old weedeaters, of course these engines are very small I wouldn't go under 25cc and pedalling would be neccesary. If you could attach a pulley to the shaft while still keeping the pull start then you could build a mount for the...