Replaces OEM Part Numbers:. Compatible with: Honda 1973-1975 ST90 Trailsport 90. Main Jet Installed: #65; Pilot Jet Installed #35; Air Jet Installed: #135. Body Material: Zinc Alloy; Input Port Size 35mm; Output Port Size: 48mm; Choke: Manual Operation. Engineered to meet or exceed OEM part specificiations..
