125-200cc 1st gear, knocking.

Hi Guys,

So my WR250, stated giving me some issues the weekend. When in first gear the bike will hve its normal pull, then a loss of power for a second with a knocking feeling, and then on the power again. This doesnt happen in any other gear but 1st.

Any ideas ?

Should i replace the 1st gear and the gear it meshes into ? If so, has anyone done that ? can you maybe explain me through the steps ?

Thanks!

Regards.

I'm no gearhead, but it seems your describing a shift fork issue. If the gear engages and eventually runs out it would seem that the gear itself is ok.

Can you feel a ratcheting sensation like it is the gear slipping? If so, you will probably need to replace several gears and also ALWAYS replace the shift fork that controls that gear.

ahh ok, ya it is like a slipping feeling, Is this a difficult job, as I am no mechanic but have fiddled with the engine before. ?
Thanks!