2018 Yamaha YZ250F part

Rebuilding the top end on my 2018 Yamaha yz250f.  I have most of the bike apart, but engine is still in the frame. Does anyone know where this spring might go?

12284.jpg?VersionId=anPXyDMmPDCyq
|
walent215
Posts
2526
Joined
12/6/2014
Location
Ridgecrest, CA, USA
2/9/2026 3:20am
Rebuilding the top end on my 2018 Yamaha yz250f.  I have most of the bike apart, but engine is still in the frame. Does anyone know...

Rebuilding the top end on my 2018 Yamaha yz250f.  I have most of the bike apart, but engine is still in the frame. Does anyone know where this spring might go?

12284.jpg?VersionId=anPXyDMmPDCyq

Brake pedal pivot bolt 

2
2/11/2026 3:18am

It is much smaller than those parts. To give some perspective, here is a picture of the spring next to the throttle body.12321.jpg?VersionId=AW0NVctwHcxF3M6rJGe3zbFrU.drj

3strokemx
Posts
2814
Joined
9/2/2010
Location
USA
2/11/2026 6:50am

I don't think it's a Yamaha part.   But I'm following along until the mystery part is identified.

1

The Shop

2/11/2026 7:13am

I'm also wondering why Yamaha would put tamper proof screws holding the fuel injector on?

Post a reply to: 2018 Yamaha YZ250F part

The Latest