Yamaha XS850 (1980) — Carburetor Rebuild

Yamaha XS850 Triple (1980) — Carburetor Rebuild Engine would not start. Compression and spark were verified. The bike sat for years with fuel degrading inside the carburetors, so a full rebuild was required. Table of Contents 00:00 – 01:17 Removal 01:17 – 15:07 Disassembly 15:07 – 28:00 Assembly 28:00 – 29:25 Synchronize 29:25 – 30:18 Pre‑loading; Float valve function test + Carburetor leak test 30:18 – 35:30 Install 35:30 – 36:35 First start after many years, initial adjustments 36:35 – 42:00 Test drive 42:00 – 42:46 Warm idle adjustment A proper rebuild is essential on these triple Mikuni carbs — clogged pilots, stuck floats, and varnished passages are common after long storage. This walkthrough covers the full teardown, cleaning, inspection, reassembly, and post‑install tuning. #xs850 #yamahaxs #motorcyclerepair #serviceseries #stepbystep #vintagemotorcyclerepair Subscribe already. #vintagemotorcyclerepair