Cork atelier · Softwood workshop edits · Shop the bench
Free shipping over $85 · Washi-tagged parcels
Perforated stubs · Studio-made finishes · New arrivals weekly
Cork atelier · Softwood workshop edits · Shop the bench
Free shipping over $85 · Washi-tagged parcels
Perforated stubs · Studio-made finishes · New arrivals weekly
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Yamaha YZ250 YZ250X WR250 Phathead cylinder head kit 1999-2026 Chamber selection:Y22 - 20.1cc (100+ octane) We like cool stuff and

USD175.00 USD201.00
SKU 89208100345 4.1 jo-in.it

Pay in 4 interest-free payments of $43.75 Learn more

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 14 - Sep 19

Workshop ticket

Tear along the line
Description

We like cool stuff and so do you

Chamber selection:Y01 - 6

6cc  (100+ octane)K53 - 38

HF22  - 16

5mm (105cc) big bore chamber 100+ octane - for use with big bore piston

Yamaha YZ250 YZ250X WR250 Phathead cylinder head kit 1999-2026 Chamber selection:Y22 - 20.1cc (100+ octane) We like cool stuff andYamaha YZ250 Phathead cylinder head kit 1999 2026 Chamber selection: Y20 22cc Stock compression for the X model Y21 21. 1cc Stock (91+ octane) Y22 20. 1cc (100+ octane) Y23 19. 1cc (105+ octane) YZ295 72mm 91+ octane 23. 8cc YZ296 72mm 100+octane 23cc 72mm chamber Does not fit Athena Phathead Kits include a head shell with one combustion chamber, two sets of o rings, cylinder head nuts, copper washers, some stickers for your bike and tool box and

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  • Final sale items are not eligible for returns or exchanges.
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