Honda CR125 1988-1991 Phathead cylinder head kit cobra 2cc (105+ octane) CR125R9299 KX500 and CR500 CR85 big bore kit Chamber selection:FX144 - (91+ octane)

2cc (105+ octane)

Suggestions : Swap chambers to adjust performance for a variety of riding conditions and track types or keep a spare in case of engine failure

CW297 72mm 105+ octane

TTR250 WR400F YFM250 Bear Tracker YFM350F Wolverine 4x4 YFM350X Warrior YFM400 Big Bear 4x4 YFM400A Kodiak YFM400F Kodiak 4x4 YFM600FW Grizzly 4x4 YFZ350 Banshee YZ125 YZ250 1999

YFM200 Moto-4 YFM350FW Big Bear 4x4 YFM350X Warrior YFS200 Blaster 1988

Honda CR125 1988 1991 Phathead cylinder head kit cobra 2cc (105+ octane) CR125R9299 KX500 and CR500 CR85 big bore kit Chamber selection:FX144 (91+ octane) 2cc (105+ octane) Suggestions : Swap chambers to adjust performance for a variety of riding conditions and track types or keep a spare in case of engine failure