After I re-geared my minibike top speed measured with a portable GPS is 42 MPH. That engine has loads of power, next I will try a couple of teeth smaller rear sprocket and see how fast is goes then.
John
It took me a while to find this, brings back memories. I had one of those as kid, I was like 12. The family had a cabin in at Lake Tahoe and I used to ride it all around there. It was a great minibike.
I bought an Azusa kit from the same people who bring you this website. It was easy to put together, I originally used a "Harbor Fright Preditor" engine, worked great and the price was right, but then swapped it out with an old classic Briggs & Straton 5 HP engine. With the Briggs I used a CVT...
That is a 1968 (K1 model in Honda Speak.) Z-50A, 49cc's of fun. Later modles has rear shocks, the K-1 is a "hard tail" model with outsprings. Tn recent years these have become collectable so the value has gone up, if it's nice $2000 or more isn't unreasonable. The low end of the scale for an...
I am a 230 pounder, never had any probles with my Azusa frame deforming or bending. But, yea, the word minibike has the name "mini" in is so it is supposed to be small. Minibikes are intended for kids. If you are a 400 LB "El Blotto Maxo" even a 350 LB'er you may just be too big for a...
I had one of those. Problem is I didn't know what I had until it was gone. (I sold it) I had much fun riding it on the street and getting pulled over by cops who just KNEW is wasn't street legal, although it had lights and a license plate. After showing them the registration and insurance...
Yeah, the engines we use are intended to run at 3600 RPM and aren't all that well balanced. You can get them to run a lot fastser, but you run the risk of, well, this. Good news is the parts for these engines are plentiful and not expensive. Now you have a fun project!
Bumblebee
https://azusaeng.com/product/azusas-ten-incher-steel-wheel/
Azusa's 10" steel wheel. The link to take you there is above. Available in chrome or black, so far no complaints. Just be careful when mounting the sprocket it's true with no runout. When I first built this bike I didn't check that...
Back in the day when I was still in high school and I was working at a dealership, we called the Express a "Noped" rather than Moped. Our customers couldn't seem to get it through their head it didn't have any petals, therefore California law considered it to be a "motor-driven cycle"...
On mine I used an aluminum pan, 1/4" thick. I had it cut out my a local surplus metal sales shop here in town and drilled the necessary holes, then had it upholstered by a local motorcycle seat guru.
Bumblebee.
The Yamahopper! Had one back when and used it as a pit bike. 50 MPH? Don't think you can get to go that fast, they are geared pretty "low" for a top speed of just under 30. At 50 that engine would be wailin'. Have fun. It's pretty good for what it is. Lately I have been using that Azusa...
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