Baby Ninja Testing

[greenjoe]

2 mill 11:1 piston and HOT CAM installed today, rejet and test run coming for the weekend between the snow. If your'e wondering the GN is the base motor for the DRZ/KLX 125 so some perfomance parts are avaiable. Some claiming up to 16 Hp with this and exaust, but not hoping for anything but positive results.

[bennelson]

[QUOTE=Ryland;212294...don't interstate highways require that motorcycles be at least 250cc or larger?...[/QUOTE]

I've never heard of any laws REQUIRING a specific size engine to use a certain road.

There are laws to MAXIMUM engine size in other uses.
Typically, a "moped" is required to be less than 50cc (which is why there are so many 49cc scooters.)

Bicycles with a motor or engine on them are considered (at least in my state) to still be a bike as long as it can't do more than 20 mph under its own power and still has pedals. I sort of like the speed rule, because it covers both gas and electric. This legally allows you to still use bike paths.

I would imagine that the only legal reference to an engine size for the interstate would be 50cc minimum, as scooters are not legally allowed.

As others have said, as long as it looks nice and doesn't hold up traffic, you're golden!

PS - Love the concept of a light cycle with an even SMALLER engine installed.

[kawboyCAFE]

I've never heard of any laws REQUIRING a specific size engine to use a certain road.

here in arkansas the law requires atleast 250cc or larger to legally ride on the interstate. now, that being said, they dont push it too much. i use to ride my zuma 125 scooter on the interstate everyday, and never got stopped once. but it is the law here, so they could enforce it if they wished. but i dont think they would stop anyone for it unless that person was driving irresponsibly.

[greenjoe]

I don't know what all the fuss is about being legal? It's more legal than 90% of most cruisers and sportbikes on the road, and I hope to get a ticket for speeding.

[kawboyCAFE]

yours is interstate legal because it is a ninja 250, regardless of the actual engine in it. it is titled as a ninja 250, period. i was merely refering to the actual 125cc bikes, such as the eliminator 125. your bike is no different than someone putting a 4 cylinder engine in a mustang gt, because it doesnt change the paperwork at all. so ride and enjoy.

[greenjoe]

Engine work done and sounds grreat! Hoping the plow trucks will run tomorrow so we can get in a test run. Quick specs... 133cc, 260lbs, chain= 428/16x42.

[bennelson]

EXCITING!!!!

Can't wait to hear the results of a test run!

[greenjoe]

Thanks Ben, it ran 70.4 mph. Why does improvement often feel like a dissapoinment? I lost the tach do to the cam swap(org. was mech. drive) but feels like I need a little more gear. It's looking like a long winter, so the drawing board will get plenty of use.

[bennelson]

How about getting an optical aftermarket tach?

Cool to hear about 70 mph with an engine half the size of the original. I don't imagine you were able to collect any fuel economy data yet, but it will be interesting to find out what that comes to as well!

[greenjoe]

The 125 Ninja got pulled out of the corner a few months back to give it one more try. Have still been working on top speed issues, but very close to what it needs. These are pictures of the new body that will be tested soon. The frame is 1/2 conduit with aluminum sheating from old rain gutters. Thanks again to Low&Slow for giving me the "I can do that too" inspiration to get back to work.