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10 Φεβ 2003 · HSR TUNING SYSTEMS: The HSR carburetor is divided into four interdependent systems: 1. Choke system 2. Idle system 3. Main system 4. Accelerator pump system Each of these systems has its major effects in a different throttle range. While there may be some overlap, each system can generally be treated as though it is completely responsible for ...
24 Ιαν 2006 · The jetting i`m looking for is: (Mikuni HSR45mm) Which ---> Pilot - Main - Needle - Pump nozzle & "E" clip position - Idle screw mixture turns from seated...???
MIKUNI HSR42/45/48 JETS/NEEDLES/ACC PUMP NOZZLES. Genuine Mikuni! Don't settle for cheap replacements, get the part/kit that lasts! Fits all HSR series carbs. Rebuild kits available here! Made in Japan. Click here for a HSR tuning and initial set up manual. Float needle valve available here.
13 Μαρ 2022 · I picked my kit up here in Australia from someone that had purchased it for a Jensen Healey sports car. It came with new 2x HSR 45mm carbs, Adjoining throttle shaft, K&N air cleaners, choke cable adapter, Manifold adapters to bolt straight to the SU/Hitachi manifold and extra jets etc.
30 Ιουν 2009 · I am setting up a msd programable single cylinder igntion and would like the jetting to be a little closer so it can run smoother. I am familar with tuning a FCR but not a Micky. I have tuned it on a dyno jet 250i and got a baseline.
4 Φεβ 2020 · Go to the Mikuni USA website at: http://www.mikuni.com/fs-manuals.html for a downloadable version of their HSR tuning manual, exploded parts view, etc. Basically the HSR 42, 45 and 48 are the same carb except for throat size and stock jetting. Some diagrams from that manual are included below.
This document provides instructions for tuning a Mikuni HSR42/45 carburetor installed on a Harley-Davidson motorcycle engine. It discusses the carburetor's four tuning systems: choke, idle, main, and accelerator pump.
