Friday, February 26, 2016

The Yamaha YZ250F is a  motorcycle first released in 2001 by yamaha It has a five-valve. 4 stroke motor instead of a 2 stroke and initially had a steel frame and an aluminum subframe. which was replaced in the 2005 model with an all-aluminum frame. From 1974 through 1982 the engine sported a 70 mm bore and a 64 mm stroke. That will produce a displacement of 250 cc. In 1983, the bore was reduced to 68 mm and the stroke was increased to 68 mm producing a displacement of 247 cc. This is one of my favorite bikes of all time. They are super fast but still really good for trail riding and things like that. This bike might be older but it will keep up with the newer bikes that are in the same cc class. I would love to buy one of these i would probably get rid of my cr for it. 

Tuesday, February 2, 2016

I have a Honda cr 250 2 stroke. The bike used to be raced so it has hot cams in it and all decked out to be raced. Which can be a good thing but also can be a bad thing. Good thing about it being all decked out is that its a lot faster then a regular stock cr 250. Bad thing is if you do not put new pistons and crackshaft there will be to much power running to the stock parts an brake them. Like what happen to me we decked everything out and did not change the crankshaft. The crankshaft then decided to snap in half on my bike. Which really makes things difficult because i have to tear the whole motor apart once again. Now that i know what I am doing it wont take as long to take it apart.