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

Athenaacapella · Newbie

Where can I find a new 2005 carburetor?

Jeff B · Senior Member

Why do you believe its shot? Unless it has been physically broken or is severely worn, a thorough cleaning and rebuild usually brings them back to life.

JOHNYBOY · Super Guru

i think our ttr god brian ttr fan overhauled some carburettors recently he may do a exchange unit for your old carb but may sell you one outright

Athenaacapella · Newbie

Hey Jeff so I took the whole carb apart and cleaned it up. The only thing I can’t get in with the rebuild kit is the Pilot screw at the bottom of the bowl. It threads but when I put the spring, washer, o-ring I can’t get it to thread. Any advice?

Thanks

Athena

-- Edited by Athenaacapella on Saturday 22nd of May 2021 05:12:46 AM

TTRfan · Super Guru

Hi Athena and welcome to the forum!

The O ring on your air screw doesn't look right. This is how it should look when fitted.

If you are using an All Balls kit that wasn't puchased through Totally TTRs then the O ring will be too small. Steve includes the correct O ring with the kit he sells - see here

Brian

Jeff B · Senior Member

Hey Athena.

Steve at Totally TTR's is a godsend for our beloved TT-R250's. He has all the specialty parts that the retail shops in the states do not carry such as these pilot screw O-rings, oil filter housing O-rings, and decompressor plug replacements.

In the meantime, if your original pilot screw and O-ring is in decent shape with no cracks, you can re-use the original pilot screw assembly until your new O-ring arrives.