watch?v=SRC4jYbq_ko

I have a 2002 honda cr125 with a problem. Watch this vid and tell me what you think it is. The stock main jet is a 400, i have a 350 in it now so i think there is something else wrong with it. Practically new top end, bored carb, ported exhaust, fmf gold series with shorty, power valve is clean. !!!Please help!!!

watch?v=7xAOr_iuNl4

How many components make up your bike? Think about it. Now, which part is the most important? Unless you're very biased, you'll have to admit that most parts, no matter how small, are important to the overall operation. So let's look at just one item – your tires.
Unlike many other components, tires are very responsive to the environment. The internal pressure increases with use (friction) or warm weather. Likewise, it decreases in the opposite situation. But at only one pressure will you get op… Continue

You may be feeling pretty proud of yourself since you’ve got your riding technique down pat. You can fly around the track like superman, through deadly turns and the muddy bogs. The embarrassing crash and burn episodes are almost non-existent. But just because your physical therapist has forgotten your name, it just means that the learning curve isn’t quite as steep as it was.

You must now delve in a bit deeper to keep putting the razor to lap times. Read on and improve your game!

Fine Tune… Continue