A forum for owners of Yamaha TTR250 trail and enduro bikes!

md · Newbie

1999 TTR250 use reverse thread mirrors

TTRfan · Super Guru

md wrote:
Does anyone know if the 1999 TTR 250 use reverse thread mirror for the right hand side? Does left hand side use a mirror with normal thread?

All TTR250s use the reverse thread on the RHS - stops the wind blowing them toward you apparently wink

LH mirror is normal thread.

Brian

md · Newbie

Thanks Brian!

I can't get my new BikeMaster mirror to screw in. It's a left hand yahama reverse thread mirror that I'm try in install on the right hand side to make it street legal.

It should be 10mm right?

-- Edited by md on Wednesday 16th of May 2012 07:04:42 PM

-- Edited by md on Wednesday 16th of May 2012 07:06:13 PM

md · Newbie

It is 10mm thread for the mirror. You were right it is reverse on the right hand side.

I took a part the BikeMaster mirror from the post to screw in the bike with a boxend wrench.

Then I used a 17mm socket (had to buy one) & wrench to screw in the post first. The I was able to attach or screw down the part with the mirror and use the boxend wrench to tighten and adjust.

Thanks for your help. I couldn't have done it with out knowing what was correct. Now I get to buy & put on the left hand one.

-- Edited by md on Wednesday 16th of May 2012 10:07:50 PM

-- Edited by md on Wednesday 16th of May 2012 10:08:27 PM

-- Edited by md on Wednesday 16th of May 2012 10:09:37 PM

TTRfan · Super Guru

10mm is right

colin13846 · Senior Member

Its also likely to be a metric fine thread, so be careful if tapping it out with a thread cutter that you use the correct tap.