wr400f trouble


im relatively new to the dirt bike scene, i have been riding for about a year now.

I have a 2000 WR400 i have found it to be an extremely tempermental bike. it will start from cold nine times out or ten, but when the engine is hot it seems to be a different story. i've had the valve clearances checked and altered by yamaha, and they showed me the correct way to start it in terms of the decompression lever. a friend suggested playing with the 'butterfly', i think that the thing that adjusts the revs??

just wondered if anyone had any suggestions or tips. would be much appreciated.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now