The Yamaha TTR 250 is great bike. It’s a nice little trail bike that allows the rider to do quite a bit. It’s built a medium stage for bikers, simple enough for novices to get going and trick enough for experts to have a little bit of fun with it. It’s compliant with California’s green sticker laws, and is built for easy maintenance. It even allows the rider to compete in enduro events, with the lights and tripmeter standard. It’s a great bike for someone who is interested in doing things on the trail.
However, this doesn’t mean that the bike is perfect. Far from it. Like any other piece of mechanics, it does occasionally break down, and when it does, you need a way to fix it. That’s when you pull out the Yamaha TTR 250 service manual and start leafing through it. Not only does it show you how to maintain the bike, but also allows for slight modifications (while warning you not to modify it further, of course). It also allows you to deal with problems that can stump even advanced mechanics.
For example, it has a problem with an occasional problem with starting. It sounds like it is out of gas, even with a full tank. The problem is usually the petcock (a small valve used to control fluid to the carburetor). Sometimes its screen is covered, sometimes the lines are clogged or contains holes, and sometimes it is the petcock feed itself. As bikes feature both a vacuum pump version and a gravity-fed version, and solving the problem requires knowing which is which, and how to solve the problem for either one. By looking up the problem in Yamaha TTR 250 service manual, several solutions present themselves.
The Yamaha TTR 250 service manual. Don’t go into the woods without it.
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